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############################################ |
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# |
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# $Id: Tangram.pm,v 1.38 2003/05/13 16:38:38 joko Exp $ |
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# |
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# $Log: Tangram.pm,v $ |
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# Revision 1.38 2003/05/13 16:38:38 joko |
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# problems with "tied" on 5.6.1/win32 |
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# |
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# Revision 1.37 2003/05/10 17:37:39 jonen |
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# corrected last commit |
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# |
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# Revision 1.36 2003/05/10 17:31:18 jonen |
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# + added new functions related to 'create' item |
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# - createNode() |
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# # creates non-persistent 'deep dummy filled' object |
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# - insertChildNode() |
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# # inserts child node at given parent (child node haven't to exists, |
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# createNode will be injected transparently) |
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# |
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# Revision 1.35 2003/04/19 16:09:48 jonen |
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# + added operator dispatching (currently for getting ref-type) at 'getListFiltered' |
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# |
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# Revision 1.34 2003/04/11 01:18:53 joko |
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# sendQuery: |
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# + introduced crud action 'DELETE' |
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# |
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# Revision 1.33 2003/04/09 06:07:43 joko |
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# revamped 'sub sendQuery' |
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# |
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# Revision 1.32 2003/04/08 22:52:22 joko |
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# modified 'querySchema': better behaviour regarding filtering result |
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# |
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# Revision 1.31 2003/04/05 21:24:09 joko |
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# modified 'sub getChildNodes': now contains code from 'querySchema' |
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# |
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# Revision 1.30 2003/03/27 15:31:14 joko |
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# fixes to modules regarding new namespace(s) below Data::Mungle::* |
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# |
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# Revision 1.29 2003/02/21 01:47:18 joko |
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# purged old code |
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# minor cosmetics |
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# |
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# Revision 1.28 2003/02/20 20:20:26 joko |
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# tried to get auto-disconnect working again - failed with that |
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# |
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# Revision 1.27 2003/01/31 06:30:59 joko |
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# + enabled 'sendQuery' |
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# |
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# Revision 1.26 2003/01/30 22:29:47 joko |
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# + fixed module usage (removed dependency on 'libp.pm') |
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# |
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# Revision 1.25 2003/01/19 02:30:05 joko |
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# + fix: modified call to '_initSchema' |
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# |
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# Revision 1.24 2002/12/22 14:13:01 joko |
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# + sub dropDb |
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# |
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# Revision 1.23 2002/12/19 16:31:53 joko |
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# +- renamed sub to 'rebuildDb' |
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# |
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# Revision 1.22 2002/12/18 22:28:16 jonen |
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# + added extended logging at 'getObjectByGuid()' |
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# |
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# Revision 1.21 2002/12/16 22:20:49 jonen |
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# + fixed bug at 'getObjectByGuid()' |
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# |
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# Revision 1.20 2002/12/16 20:49:17 jonen |
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# + added sub 'getObjectByGuid()' |
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# + added functionality to use 'getObjectByGuid' at 'getObjectAsHash()' |
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# |
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# Revision 1.19 2002/12/16 06:46:09 joko |
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# + attempt to introduce a generic '_patchSchema' - cancelled! |
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# |
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# Revision 1.18 2002/12/13 21:48:07 joko |
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# + fix to 'sub sendQuery' |
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# |
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# Revision 1.17 2002/12/12 02:51:09 joko |
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# + cosmetics |
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# |
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# Revision 1.16 2002/12/11 06:54:10 joko |
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# + fix: encapsulated object-loading inside an 'eval' |
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# |
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# Revision 1.15 2002/12/05 13:55:21 joko |
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# + now utilizing 'expand' instead of 'var_deref' |
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# + played around with having fresh-objects - no progress.... |
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# |
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# Revision 1.14 2002/12/05 09:40:30 jonen |
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# + added option->{destroy} at getObject for unloading all instance |
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# |
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# Revision 1.13 2002/12/05 07:59:04 joko |
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# + now using Tie::SecureHash as a base for the COREHANDLE |
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# + former public COREHANDLE becomes private _COREHANDLE now |
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# + sub getCOREHANDLE |
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# |
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# Revision 1.12 2002/12/04 11:34:49 joko |
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# - $schema_tangram doesn't have to be in class? |
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# |
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# Revision 1.11 2002/12/04 08:54:08 jonen |
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# + untested bugfix: undef($object) after transform to hash at getObjectAsHash |
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# |
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# Revision 1.10 2002/12/03 15:53:23 joko |
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# + small bugfix regarding object hierarchy |
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# |
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# Revision 1.9 2002/12/03 05:29:40 joko |
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# + sub getObject |
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# + sub getObjectAsHash |
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# |
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# Revision 1.8 2002/12/01 22:25:51 joko |
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# + now utilizing metadata from storage locator when connecting to DBI in "raw"-mode |
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# |
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# Revision 1.7 2002/12/01 04:46:19 joko |
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# + sub eraseAll |
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# |
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# Revision 1.6 2002/11/29 05:02:30 joko |
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# - sub getNewPerlObjectByPkgName (moved to libp.pm) |
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# + sub getMetaInfo |
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# - sub existsChildNode (moved to Abstract.pm) |
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# + sub getListUnfiltered |
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# + sub getListFiltered |
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# + sub createCursor |
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# + sub createSet |
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# + sub sendQuery |
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# |
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# Revision 1.5 2002/11/17 06:35:18 joko |
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# + locator metadata can now be reached via ->{locator} |
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# - getChildNodes is now wrapped via COREHANDLE |
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# |
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# Revision 1.4 2002/10/25 11:44:44 joko |
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# + sub _initSchema |
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# + sub existsChildNode |
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# + sub testIntegrity |
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# + sub rebuildDbAndSchema |
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# |
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# Revision 1.3 2002/10/17 03:56:55 joko |
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# + bugfix: trapped eval error |
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# |
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# Revision 1.2 2002/10/17 00:10:05 joko |
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# + removed dependency from tsobj.pm, schema is now independent |
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# + sub getNewPerlObjectByPkgName |
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# + sub deploySchema |
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# + sub retreatSchema |
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# |
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# Revision 1.1 2002/10/10 03:44:07 cvsjoko |
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# + new |
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# |
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############################################ |
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|
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|
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package Data::Storage::Handler::Tangram; |
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|
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use strict; |
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use warnings; |
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|
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use base ("Data::Storage::Handler"); |
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use base ("Data::Storage::Handler::Abstract"); |
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|
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|
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use Data::Dumper; |
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use Tangram; |
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|
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use DesignPattern::Object; |
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use Data::Storage::Result::Tangram; |
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use Data::Mungle::Compare::Struct qw( isEmpty ); |
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use Data::Mungle::Transform::Deep qw( expand deep_copy merge_to ); |
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|
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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|
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|
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# this holds the complete instantiated schema from tangram |
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my $schema_tangram; |
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|
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sub getMetaInfo { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->getMetaInfo()" ); |
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return { |
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'disconnectMethod' => 'disconnect', |
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}; |
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} |
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|
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sub _initSchema { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->_initSchema()" ); |
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#if (!$schema_tangram) { |
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#my $obj = getNewPerlObjectByPkgName($self->{locator}->{schema}, { EXPORT_OBJECTS => $self->{locator}->{classnames}, want_transactions => $self->{locator}->{want_transactions} } ); |
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my $obj = DesignPattern::Object->fromPackage($self->{locator}->{schema}, { 'EXPORT_OBJECTS' => $self->{locator}->{classnames}, 'want_transactions' => $self->{locator}->{want_transactions} } ); |
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$schema_tangram = $obj->getSchema(); |
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#} |
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if (!$schema_tangram) { |
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$logger->error( __PACKAGE__ . "->_initSchema: No Schema available for $self->{schema}" ); |
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return 0; |
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} |
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#$self->_patchSchema(); |
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return 1; |
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} |
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|
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sub _patchSchema { |
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my $self = shift; |
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foreach (keys %{$schema_tangram->{classes}}) { |
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next if $schema_tangram->{classes}->{$_}->{abstract}; |
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#next if ($_ ne 'TsBankAccount'); |
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#$_ ne 'AbstractAccount' && |
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print "class: $_", "\n"; |
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#print Dumper($schema_tangram->{classes}->{$_}); |
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# create new string property named 'guid' |
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my $tstring = Tangram::String->new(); |
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$tstring->{name} = $tstring->{col} = 'guid'; |
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# inject property into schema |
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#$schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields}->{string}->{$tstring->{name}} = $tstring; |
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print Dumper($schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields}); |
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} |
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} |
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|
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sub connect { |
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|
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my $self = shift; |
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|
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my $dsn = shift; |
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|
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#print Dumper($self); |
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#exit; |
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|
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# TODO: re-enable |
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$dsn ||= $self->{locator}->{dbi}->{dsn}; |
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$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" ); |
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|
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#my $storage = Tangram::Relational->connect( $schema, $dsn ); |
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#my $storage = Tangram::mysql->connect( $schema, $dsn ); |
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#$storage = Tangram::Relational->connect( Project->schema, $dsn ); |
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|
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# if (!testDsn($dsn)) { |
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# croak("Database at \"$dsn\" is not available"); |
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# return; |
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# } |
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|
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#return unless $self->_initSchema(); |
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$self->_initSchema(); |
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|
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# create the main tangram storage object |
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#$self->{COREHANDLE} = Tangram::Relational->connect( $schema, $dsn ); |
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$self->{_COREHANDLE} = Tangram::Relational->connect( $schema_tangram, $dsn ); |
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|
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#print "connect", "\n"; |
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#my $core = $self->{_COREHANDLE}; |
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#print Dumper($core); |
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|
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# some attempts for configuring the wrapped underlying dbi..... |
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#$self->{STORAGEHANDLE_UNDERLYING} = $self->getUnderlyingStorage(); |
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#$self->{STORAGEHANDLE_UNDERLYING}->_configureCOREHANDLE(); |
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#$self->_configureUnderlyingStorage; |
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|
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# ..... encapsulation wins! |
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$self->configureCOREHANDLE(); |
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|
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$self->{locator}->{status}->{connected} = 1; |
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|
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return 1; |
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|
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} |
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|
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sub getChildNodes { |
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|
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my $self = shift; |
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my $mode = shift; |
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my $filter = shift; |
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|
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$mode ||= 'core'; |
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$filter ||= 'all'; |
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|
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$logger->debug( __PACKAGE__ . "->getChildNodes($mode)" ); |
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|
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if ($mode eq 'core') { |
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|
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my @nodes; |
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|
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# create new DBI - Data::Storage - object from already connected DBI::db - handle inside the current COREHANDLE |
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#my $loc = new Data::Storage::Locator( type => "DBI", dbi => { db => $self->{COREHANDLE}->{db} }); |
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#my $loc = new Data::Storage::Locator( type => "DBI", COREHANDLE => $self->{COREHANDLE}->{db} ); |
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|
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# todo: should we retrieve information from the schema here |
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# rather than poorly getting table names from underlying dbi? |
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my $storage = $self->_getSubLayerHandle(); |
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@nodes = @{$storage->getChildNodes()}; |
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#$storage->_configureCOREHANDLE(); |
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#print "getchildnodes\n"; |
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#print Dumper($self); |
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#if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
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|
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# TODO: REVIEW |
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#$storage->disconnect(); |
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|
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$self->{meta}->{childnodes} = \@nodes; |
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|
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return \@nodes; |
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|
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} elsif ($mode eq 'root') { |
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|
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# FIXME: this will return *all* known classes to 'Class::Tangram', |
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# which might not be what you expect since more than one instance |
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# of Tangram may be in memory and Class::Tangram seems to |
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# offer no methods to determine this or filter its result(s) according |
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# to a specific database. |
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my @object_names = Class::Tangram::known_classes(); |
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my @concret_names; |
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my $o_cnt; |
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foreach (sort @object_names) { |
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push @concret_names, $_ if (!Class::Tangram::class_is_abstract($_)); |
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$o_cnt++; |
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} |
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|
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if ($filter eq 'all') { |
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return \@object_names; |
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} elsif ($filter eq 'concrete') { |
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return \@concret_names; |
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} |
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|
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} |
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|
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|
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} |
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|
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sub testIntegrity { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->testIntegrity()" ); |
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|
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# 1st test: are there tables? |
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if (!$self->getChildNodes()) { |
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$logger->warning( __PACKAGE__ . "->testIntegrity no childnodes exist" ); |
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return; |
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} |
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|
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# 2nd test: is there a table named "Tangram"? |
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if (!$self->existsChildNode("Tangram")) { |
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$logger->warning( __PACKAGE__ . "->testIntegrity childnode \"Tangram\" doesn't exist" ); |
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return; |
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} |
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|
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$self->{locator}->{status}->{integrity} = 1; |
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return 1; |
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|
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} |
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|
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|
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sub _getSubLayerHandle { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->_getSubLayerHandle()" ); |
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|
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#print Dumper($self); |
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|
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# hack, make more generic! |
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if (!$self->{dataStorageLayer}) { |
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$logger->debug( __PACKAGE__ . "->_getSubLayerHandle() creating new dataStorageLayer" ); |
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#my $loc = Data::Storage::Locator->new( type => "DBI", dbi => $self->{dbi}, COREHANDLE => $self->{COREHANDLE}->{db} ); |
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my $loc = Data::Storage::Locator->new( { type => "DBI", dbi => $self->{locator}->{dbi} } ); |
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$self->{dataStorageLayer} = Data::Storage->new( $loc, { protected => 1 } ); |
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#$self->{STORAGE_UNDER_THE_HOOD}->{STORAGEHANDLE}->_configureCOREHANDLE(); |
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#$self->{STORAGE_UNDER_THE_HOOD}->_configureCOREHANDLE(); |
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} |
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|
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#print Dumper($self->{STORAGE_UNDER_THE_HOOD}); |
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|
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return $self->{dataStorageLayer}; |
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|
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} |
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|
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sub _configureUnderlyingStorage { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->_configureUnderlyingStorage" ); |
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|
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$self->_configureCOREHANDLE_DBI(); |
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return; |
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|
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foreach my $key (keys %{$self->{dbi}}) { |
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my $val = $self->{dbi}->{$key}; |
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print "entry: $key; $val", "\n"; |
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$self->{_COREHANDLE}->{db}->{$key} = $val; |
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} |
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#print Dumper($self->{COREHANDLE}->{db}); |
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} |
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|
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|
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sub configureCOREHANDLE { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" ); |
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|
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#my $subLayer = $self->_getSubLayerHandle(); |
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#print Dumper($self); |
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#exit; |
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|
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# apply configured modifications |
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if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
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$self->{_COREHANDLE}->{db}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
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} |
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if (exists $self->{dbi}->{RaiseError}) { |
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$self->{_COREHANDLE}->{db}->{RaiseError} = $self->{dbi}->{RaiseError}; |
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} |
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if (exists $self->{dbi}->{PrintError}) { |
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$self->{_COREHANDLE}->{db}->{PrintError} = $self->{dbi}->{PrintError}; |
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} |
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if (exists $self->{dbi}->{HandleError}) { |
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$self->{_COREHANDLE}->{db}->{HandleError} = $self->{dbi}->{HandleError}; |
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} |
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|
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} |
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|
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sub deploySchema { |
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my $self = shift; |
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my $args = shift; |
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|
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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|
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$logger->debug( __PACKAGE__ . "->deploySchema( dsn $dsn )" ); |
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|
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my $ok; |
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if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
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return unless $self->_initSchema(); |
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$ok = Tangram::Relational->deploy($schema_tangram, $dbh ); |
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$dbh->disconnect(); |
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} |
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return $ok; |
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} |
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|
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sub retreatSchema { |
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|
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my $self = shift; |
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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|
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$logger->debug( __PACKAGE__ . "->retreatSchema( dsn $dsn )" ); |
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|
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my $ok; |
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if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
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|
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return unless $self->_initSchema(); |
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|
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#use Data::Dumper; print Dumper($self); |
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$self->{dataStorageLayer}->removeLogDispatchHandler("Tangram11"); |
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|
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$ok = Tangram::Relational->retreat($schema_tangram, $dbh ); |
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|
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# answer "$ok=2" means "maybe" for now - we have to patch this to a constant here because... |
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# - ... Tangram::Relational->retreat doesn't seem to return a valid status |
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# - possible improvement: |
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# - test this by checking for count of tables in database |
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# - problem with this: there may be some left not having been included to the schema |
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# - maybe better: use "->getChildNodes"? |
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$ok = 2; |
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|
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$dbh->disconnect(); |
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|
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} |
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return $ok; |
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} |
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|
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sub rebuildDb { |
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my $self = shift; |
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$logger->info( __PACKAGE__ . "->rebuildDb()" ); |
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my @results; |
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|
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# sum up results (bool (0/1)) in array |
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push @results, $self->retreatSchema(); |
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push @results, $self->{dataStorageLayer}->dropDb(); |
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push @results, $self->{dataStorageLayer}->createDb(); |
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push @results, $self->deploySchema(); |
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|
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# scan array for "bad ones" |
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my $res = 1; |
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map { |
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$res = 0 if (!$_); |
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} @results; |
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|
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return $res; |
| 480 |
} |
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|
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sub getListUnfiltered { |
| 483 |
my $self = shift; |
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my $nodename = shift; |
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my @results; |
| 486 |
$logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" ); |
| 487 |
# get set of objects from odbms by object name |
| 488 |
my $object_set = $self->{_COREHANDLE}->remote($nodename); |
| 489 |
@results = $self->{_COREHANDLE}->select($object_set); |
| 490 |
return \@results; |
| 491 |
} |
| 492 |
|
| 493 |
sub getListFiltered { |
| 494 |
my $self = shift; |
| 495 |
|
| 496 |
# redirect to unfiltered mode |
| 497 |
#return $self->getListUnfiltered(@_); |
| 498 |
|
| 499 |
my $nodename = shift; |
| 500 |
my $filters = shift; |
| 501 |
my @results; |
| 502 |
$logger->debug( __PACKAGE__ . "->getListFiltered( nodename => '" . $nodename . "' )" ); |
| 503 |
|
| 504 |
#print Dumper($filters); |
| 505 |
|
| 506 |
my @tfilters; |
| 507 |
|
| 508 |
foreach my $filter (@$filters) { |
| 509 |
|
| 510 |
# get filter - TODO: for each filter |
| 511 |
#my $filter = $filters->[0]; |
| 512 |
|
| 513 |
# build filter |
| 514 |
my $lexpr = $filter->{key}; |
| 515 |
#my $op = $filter->{op}; |
| 516 |
my $op = '='; |
| 517 |
my $rexpr = $filter->{val}; |
| 518 |
my $tight = 100; |
| 519 |
|
| 520 |
# my $tfilter = Tangram::Filter->new( |
| 521 |
# expr => "t1.$lexpr $op '$rexpr'", |
| 522 |
# tight => $tight, |
| 523 |
# objects => $objects, |
| 524 |
# ); |
| 525 |
|
| 526 |
# TODO: is_op? |
| 527 |
# dispatch un-common operators if exists |
| 528 |
if($filter->{op} eq "ref") { |
| 529 |
# do nothing, results will be filtered later cause 'tangram-filter' doesn't support 'ref' query |
| 530 |
#print "Filter->op eq 'ref'.\n"; |
| 531 |
#push @tfilters, 'ref($remote->{' . $filter->{key} . '})' . " eq '$filter->{val}'"; |
| 532 |
} else { |
| 533 |
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
| 534 |
push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'"; |
| 535 |
} |
| 536 |
|
| 537 |
} |
| 538 |
|
| 539 |
my $tfilter = join(' & ', @tfilters); |
| 540 |
|
| 541 |
# get set of objects from odbms by object name |
| 542 |
my $remote = $self->{_COREHANDLE}->remote($nodename); |
| 543 |
|
| 544 |
# was: |
| 545 |
#@results = $self->{COREHANDLE}->select($object_set, $tfilter); |
| 546 |
|
| 547 |
# is: |
| 548 |
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
| 549 |
my $evalstring = 'return $self->{_COREHANDLE}->select($remote, ' . $tfilter . ');'; |
| 550 |
|
| 551 |
#print "eval: $evalstring", "\n"; |
| 552 |
|
| 553 |
# get filtered list/set |
| 554 |
@results = eval($evalstring); |
| 555 |
die $@ if $@; |
| 556 |
|
| 557 |
|
| 558 |
# filter results |
| 559 |
if($filters->[0]->{op} eq "ref") { |
| 560 |
#print "Filter->op eq 'ref'.\n"; |
| 561 |
my $att_name = $filters->[0]->{key}; |
| 562 |
my $att_val = $filters->[0]->{val}; |
| 563 |
my @filtered; |
| 564 |
foreach(@results) { |
| 565 |
if(ref($_->{$att_name}) eq $att_val) { |
| 566 |
push @filtered, $_; |
| 567 |
} |
| 568 |
} |
| 569 |
@results = @filtered; |
| 570 |
} |
| 571 |
|
| 572 |
#print "results: " . Dumper(\@results); |
| 573 |
|
| 574 |
return \@results; |
| 575 |
} |
| 576 |
|
| 577 |
sub createCursor { |
| 578 |
my $self = shift; |
| 579 |
my $node = shift; |
| 580 |
my $cmdHandle = $self->{_COREHANDLE}->cursor($node); |
| 581 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $cmdHandle ); |
| 582 |
return $result; |
| 583 |
} |
| 584 |
|
| 585 |
sub createSet { |
| 586 |
my $self = shift; |
| 587 |
#print "-" x 80, "\n"; |
| 588 |
#print Dumper(@_); |
| 589 |
my @objects = @_; |
| 590 |
my $rh = Set::Object->new(); |
| 591 |
foreach (@objects) { |
| 592 |
if (!isEmpty($_)) { |
| 593 |
#print Dumper($_); |
| 594 |
$rh->insert($_); |
| 595 |
} |
| 596 |
} |
| 597 |
#print Dumper($rh->members()); |
| 598 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh ); |
| 599 |
return $result; |
| 600 |
} |
| 601 |
|
| 602 |
sub sendQuery { |
| 603 |
my $self = shift; |
| 604 |
my $query = shift; |
| 605 |
|
| 606 |
#print Dumper($query); |
| 607 |
|
| 608 |
# type = ITEM|LIST|TRANSPARENT |
| 609 |
my $type = ''; |
| 610 |
# mode = OID|SPECIAL |
| 611 |
my $mode = ''; |
| 612 |
my $ident = ''; |
| 613 |
my $crud = ''; |
| 614 |
|
| 615 |
|
| 616 |
# dispatch type and mode |
| 617 |
|
| 618 |
# defaults - 1 |
| 619 |
if ($query->{options}) { |
| 620 |
$crud = $query->{options}->{crud}; |
| 621 |
$crud ||= $query->{options}->{action}; |
| 622 |
} |
| 623 |
|
| 624 |
# defaults - 2 |
| 625 |
$type ||= 'TRANSPARENT'; |
| 626 |
$crud ||= 'RETRIEVE'; |
| 627 |
|
| 628 |
if ($query->{options}->{OID}) { |
| 629 |
$type = 'ITEM'; |
| 630 |
$mode = 'OID'; |
| 631 |
$ident = $query->{options}->{OID}; |
| 632 |
|
| 633 |
} elsif (my $guid = $query->{options}->{GUID}) { |
| 634 |
$type = 'TRANSPARENT'; |
| 635 |
$query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ]; |
| 636 |
|
| 637 |
# if operator is different (dispatcher for 'getListFiltered') |
| 638 |
} elsif (my $op = $query->{options}->{op}) { |
| 639 |
$type = 'TRANSPARENT'; |
| 640 |
$query->{criterias} = [ { key => $query->{options}->{meta_label}, op => $op, val => $query->{options}->{meta_value} } ]; |
| 641 |
|
| 642 |
} |
| 643 |
|
| 644 |
# HACK: special case: querying by id does not translate into a common tangram query |
| 645 |
# just load the object by given identifier (OID) named 'id' - this is required by Data::Transfer::Sync! |
| 646 |
if ($query->{criterias} && ($query->{criterias}->[0]->{key} eq 'id' && $query->{criterias}->[0]->{op} eq 'eq')) { |
| 647 |
$type = 'ITEM'; |
| 648 |
$mode = 'SPECIAL.SYNC'; |
| 649 |
$ident = $query->{criterias}->[0]->{val}; |
| 650 |
} |
| 651 |
|
| 652 |
|
| 653 |
# execute query |
| 654 |
my $result; |
| 655 |
|
| 656 |
if ($type eq 'ITEM' && $ident) { |
| 657 |
|
| 658 |
if ($mode eq 'OID') { |
| 659 |
# TODO: review this case! |
| 660 |
$result = $self->getObject($ident, $query->{options}); |
| 661 |
|
| 662 |
} elsif ($mode eq 'SPECIAL.SYNC') { |
| 663 |
|
| 664 |
# V1 - failed |
| 665 |
#return Set::Object->new( $self->{COREHANDLE}->load($query->{criterias}->[0]->{val}) ); |
| 666 |
|
| 667 |
# hmm.... |
| 668 |
#return $self->createSet() if $ident == 5; |
| 669 |
|
| 670 |
# Unload single object before doing any further operations to |
| 671 |
# expect a "fresh" object from orm when performing the next calls. |
| 672 |
$self->{_COREHANDLE}->unload($ident); |
| 673 |
|
| 674 |
# Load object from orm. |
| 675 |
my $object = $self->{_COREHANDLE}->load($ident); |
| 676 |
|
| 677 |
# determine object identifier (OID) |
| 678 |
my $oid = $self->{_COREHANDLE}->id($object); |
| 679 |
|
| 680 |
# encapsulate into result/response container and return this one |
| 681 |
$result = $self->createSet($object); |
| 682 |
|
| 683 |
# debugging |
| 684 |
#$result = $self->createSet( $self->{COREHANDLE}->load('300090018') ); |
| 685 |
|
| 686 |
} |
| 687 |
|
| 688 |
|
| 689 |
} elsif ($type eq 'TRANSPARENT') { |
| 690 |
|
| 691 |
if ($crud eq 'RETRIEVE') { |
| 692 |
|
| 693 |
my $list = $self->getListFiltered($query->{node}, $query->{criterias}); |
| 694 |
#return $self->createSet($object); |
| 695 |
#return $self->createSet($list); |
| 696 |
return $self->createSet(@$list); |
| 697 |
|
| 698 |
#die("This should not be reached for now - redirect to \$self->getListFiltered() here!"); |
| 699 |
|
| 700 |
# try a generic tangram query here |
| 701 |
# TODO: try to place an oql on top of that (search.cpan.org!) |
| 702 |
my @crits; |
| 703 |
foreach (@{$query->{criterias}}) { |
| 704 |
my $op = ''; |
| 705 |
$op = '=' if lc $_->{op} eq 'eq'; |
| 706 |
push @crits, "$_->{key}$op'$_->{val}'"; |
| 707 |
} |
| 708 |
my $subnodes = {}; |
| 709 |
map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
| 710 |
# HACK: this is hardcoded ;( expand possibilities! |
| 711 |
#my $crit = join(' AND ', @crits); |
| 712 |
#my $sql = hash2Sql($query->{node}, $subnodes, 'SELECT', $crit); |
| 713 |
#return $self->sendCommand($sql); |
| 714 |
#my $h = $self->{COREHANDLE}->remote($query->{node}); |
| 715 |
#my $res = $self->{COREHANDLE}->select($h, $h->{); |
| 716 |
$result = $self->createCursor($query->{node}); |
| 717 |
|
| 718 |
} elsif ($crud eq 'UPDATE') { |
| 719 |
|
| 720 |
# Patch current query to be a loader (e.g. change action, remove payload) ... |
| 721 |
my $childquery = deep_copy($query); |
| 722 |
$childquery->{options}->{crud} = 'RETRIEVE'; |
| 723 |
delete $childquery->{payload}; |
| 724 |
|
| 725 |
# ... to use it to fetch a fresh object using ourselves (sendQuery). |
| 726 |
my $cursor = $self->sendQuery($childquery); |
| 727 |
my $status = $cursor->getStatus(); |
| 728 |
my $object = $cursor->getNextEntry(); |
| 729 |
|
| 730 |
# Merge values and apply value modifiers. |
| 731 |
my $options = { utf8 => 1, php => 1 }; |
| 732 |
merge_to($object, $query->{payload}, $options); |
| 733 |
|
| 734 |
# Execute update operation at orm. |
| 735 |
$self->update($object); |
| 736 |
|
| 737 |
} elsif ($crud eq 'DELETE') { |
| 738 |
|
| 739 |
# Patch current query to be a loader (e.g. change action) ... |
| 740 |
my $childquery = deep_copy($query); |
| 741 |
$childquery->{options}->{crud} = 'RETRIEVE'; |
| 742 |
|
| 743 |
# ... to use it to fetch a fresh object using ourselves (sendQuery). |
| 744 |
my $cursor = $self->sendQuery($childquery); |
| 745 |
my $status = $cursor->getStatus(); |
| 746 |
my $object = $cursor->getNextEntry(); |
| 747 |
|
| 748 |
$self->erase($object); |
| 749 |
|
| 750 |
} elsif ($crud eq 'CREATE') { |
| 751 |
|
| 752 |
my $nodename = $query->{node}; |
| 753 |
my $newnode = $self->createNode($nodename); |
| 754 |
my $id = $self->{_COREHANDLE}->insert($newnode); |
| 755 |
|
| 756 |
print "Saved new node $nodename with GUID $newnode->{guid}, OID '$id': " . Dumper($newnode) . "\n"; |
| 757 |
|
| 758 |
return $newnode; |
| 759 |
|
| 760 |
} |
| 761 |
|
| 762 |
} |
| 763 |
|
| 764 |
return $result; |
| 765 |
|
| 766 |
} |
| 767 |
|
| 768 |
sub eraseAll { |
| 769 |
my $self = shift; |
| 770 |
my $classname = shift; |
| 771 |
my $remote = $self->{_COREHANDLE}->remote($classname); |
| 772 |
my @objs = $self->{_COREHANDLE}->select($remote); |
| 773 |
$self->{_COREHANDLE}->erase(@objs); |
| 774 |
} |
| 775 |
|
| 776 |
sub createDb { |
| 777 |
my $self = shift; |
| 778 |
my $storage = $self->_getSubLayerHandle(); |
| 779 |
return $storage->createDb(); |
| 780 |
} |
| 781 |
|
| 782 |
sub getObject { |
| 783 |
my $self = shift; |
| 784 |
my $oid = shift; |
| 785 |
my $options = shift; |
| 786 |
|
| 787 |
# TODO: create a deep_unload method (currently _all_ objects are unloaded) |
| 788 |
# unload($oid) will only unload object, not deep object hashes |
| 789 |
$self->{_COREHANDLE}->unload() if ($options->{destroy}); |
| 790 |
|
| 791 |
# TODO: review this |
| 792 |
#if (!$self->{COREHANDLE}) { return; } |
| 793 |
|
| 794 |
# TODO: review this |
| 795 |
my $object = eval('$self->{_COREHANDLE}->load($oid);'); |
| 796 |
print $@, "\n" if $@; |
| 797 |
|
| 798 |
return $object if $object; |
| 799 |
} |
| 800 |
|
| 801 |
sub getObjectByGuid_old { |
| 802 |
my $self = shift; |
| 803 |
my $guid = shift; |
| 804 |
my $options = shift; |
| 805 |
|
| 806 |
# Guid and Classname is needed |
| 807 |
if(!$guid || !$options->{classname}) { |
| 808 |
$logger->error( __PACKAGE__ . "->getObjectByGuid: No 'guid' OR no Classname in options hash was given but needed!" ); |
| 809 |
return; |
| 810 |
} |
| 811 |
|
| 812 |
# TODO: create a deep_unload method (currently _all_ objects are unloaded) |
| 813 |
# unload($oid) will only unload object, not deep object hashes |
| 814 |
$self->{_COREHANDLE}->unload() if ($options->{destroy}); |
| 815 |
|
| 816 |
# search for object with given Classname and Guid |
| 817 |
my $obj_tmp = $self->{_COREHANDLE}->remote($options->{classname}); |
| 818 |
my @result = $self->{_COREHANDLE}->select($obj_tmp, $obj_tmp->{guid} eq $guid); |
| 819 |
|
| 820 |
# we searched for global unique identifer of some object, |
| 821 |
# so I think we can trust there would be only one result |
| 822 |
if($result[0]) { |
| 823 |
return $result[0]; |
| 824 |
} else { |
| 825 |
$logger->error( __PACKAGE__ . "->getObjectByGuid: No Object with Classname $options->{classname} and GUID $guid found!" ); |
| 826 |
return; |
| 827 |
} |
| 828 |
|
| 829 |
} |
| 830 |
|
| 831 |
sub getObjectAsHash_old { |
| 832 |
my $self = shift; |
| 833 |
my $oid = shift; |
| 834 |
my $options = shift; |
| 835 |
my $obj; |
| 836 |
|
| 837 |
if($options->{guid}) { |
| 838 |
$obj = $self->getObjectByGuid($oid, $options); |
| 839 |
} else { |
| 840 |
$obj = $self->getObject($oid, $options); |
| 841 |
} |
| 842 |
|
| 843 |
# build options (a callback to unload autovivified objects) for 'expand' |
| 844 |
# TODO: use $logger to write to debug here! |
| 845 |
my $cb; # = sub {}; |
| 846 |
|
| 847 |
# deactivated way to get rid of used instances, if requested |
| 848 |
=pod |
| 849 |
if ($options->{destroy}) { |
| 850 |
$options->{cb}->{destroy} = sub { |
| 851 |
print "================ DESTROY", "\n"; |
| 852 |
my $object = shift; |
| 853 |
#print Dumper($object); |
| 854 |
$self->{_COREHANDLE}->unload($object); |
| 855 |
#undef($object); |
| 856 |
}; |
| 857 |
} |
| 858 |
=cut |
| 859 |
|
| 860 |
my $hash = expand($obj, $options); |
| 861 |
|
| 862 |
# old (unsuccessful) attempts to get rid of used instances, if requested |
| 863 |
|
| 864 |
# V1: |
| 865 |
#$options->{cb}->{destroy}->($obj); |
| 866 |
#$self->{_COREHANDLE}->unload($obj); |
| 867 |
|
| 868 |
# V2: |
| 869 |
#$obj->clear_refs; |
| 870 |
#$self->{COREHANDLE}->unload($obj) if($options->{destroy}); |
| 871 |
#$obj->DESTROY; |
| 872 |
#undef($obj) if($options->{destroy}); |
| 873 |
|
| 874 |
return $hash; |
| 875 |
} |
| 876 |
|
| 877 |
sub getSchema { |
| 878 |
return $schema_tangram; |
| 879 |
} |
| 880 |
|
| 881 |
sub getCOREHANDLE { |
| 882 |
my $self = shift; |
| 883 |
return $self->{_COREHANDLE}; |
| 884 |
} |
| 885 |
|
| 886 |
sub dropDb { |
| 887 |
my $self = shift; |
| 888 |
my $storage = $self->_getSubLayerHandle(); |
| 889 |
return $storage->dropDb(); |
| 890 |
} |
| 891 |
|
| 892 |
sub testAvailability { |
| 893 |
my $self = shift; |
| 894 |
my $storage = $self->_getSubLayerHandle(); |
| 895 |
return $storage->testAvailability(); |
| 896 |
} |
| 897 |
|
| 898 |
sub disconnect2 { |
| 899 |
my $self = shift; |
| 900 |
my $storage = $self->_getSubLayerHandle(); |
| 901 |
print "DISC!", "\n"; |
| 902 |
|
| 903 |
my $storage_ll = $storage->{_COREHANDLE}; |
| 904 |
$storage_ll->disconnect(); |
| 905 |
|
| 906 |
print Dumper($storage); |
| 907 |
exit; |
| 908 |
|
| 909 |
#$self->{_COREHANDLE} |
| 910 |
#$storage->disconnect(); |
| 911 |
$self->{dataStorageLayer}->disconnect(); |
| 912 |
} |
| 913 |
|
| 914 |
|
| 915 |
sub createNode { |
| 916 |
my $self = shift; |
| 917 |
my $classname = shift; |
| 918 |
|
| 919 |
my $obj = $classname->new(); |
| 920 |
|
| 921 |
my $attr_options = Class::Tangram::attribute_options($classname); |
| 922 |
#print "Attribute Options: " . Dumper($attr_options); |
| 923 |
|
| 924 |
my $attr_types = Class::Tangram::attribute_types($classname); |
| 925 |
#print "Attribute Types: " . Dumper($attr_types); |
| 926 |
|
| 927 |
foreach(keys %{$attr_types}) { |
| 928 |
if($attr_types->{$_} eq 'string') { |
| 929 |
$obj->{$_} = ''; |
| 930 |
} elsif($attr_types->{$_} eq 'int') { |
| 931 |
$obj->{$_} = 0; |
| 932 |
} elsif($attr_types->{$_} eq 'real') { |
| 933 |
$obj->{$_} = 0; |
| 934 |
} elsif($attr_types->{$_} eq 'rawdatetime') { |
| 935 |
$obj->{$_} = '0000-00-00 00:00:00'; |
| 936 |
} elsif($attr_types->{$_} eq 'ref') { |
| 937 |
if($attr_options->{$_}->{class}) { |
| 938 |
$obj->{$_} = $self->createNode($attr_options->{$_}->{class}); |
| 939 |
} else { |
| 940 |
#$obj->{$_} = undef(); |
| 941 |
} |
| 942 |
} elsif($attr_types->{$_} eq 'iarray') { |
| 943 |
$obj->{$_} = [ ]; |
| 944 |
} elsif($attr_types->{$_} eq 'hash') { |
| 945 |
$obj->{$_} = { }; |
| 946 |
} elsif($attr_types->{$_} eq 'flat_hash') { |
| 947 |
$obj->{$_} = { }; |
| 948 |
} |
| 949 |
} |
| 950 |
|
| 951 |
#print "New Object: " . Dumper($obj); |
| 952 |
|
| 953 |
return $obj; |
| 954 |
} |
| 955 |
|
| 956 |
|
| 957 |
sub insertChildNode { |
| 958 |
my $self = shift; |
| 959 |
my $child_entry = shift; |
| 960 |
my $query_args = shift; |
| 961 |
|
| 962 |
my $core = $self->{_COREHANDLE}; |
| 963 |
my $nodename = $query_args->{nodename}; |
| 964 |
|
| 965 |
# get parent object |
| 966 |
my $query = { |
| 967 |
node => $query_args->{parent}->{nodename}, |
| 968 |
options => { GUID => $query_args->{parent}->{guid}, }, |
| 969 |
}; |
| 970 |
my $cursor = $self->sendQuery($query); |
| 971 |
my $parent = $cursor->getNextEntry(); |
| 972 |
|
| 973 |
# debug |
| 974 |
#print "Parent_org: " . Dumper($parent); |
| 975 |
|
| 976 |
# Create child node object if isn't already done |
| 977 |
# ($child_entry have to be the class name then...) |
| 978 |
if(!ref($child_entry)) { |
| 979 |
$child_entry = $self->createNode($child_entry); |
| 980 |
# it could be insert 'manually' or will be insert 'transparent' if parent will be updated |
| 981 |
#$core->insert($child_entry); |
| 982 |
#print "Create child object [$nodename]: " . Dumper($child_entry); |
| 983 |
} |
| 984 |
|
| 985 |
# get reference of tied node (seems, only on Linux node's are tied!!) |
| 986 |
my $tied_node = tied $parent->{$nodename}; |
| 987 |
|
| 988 |
# insert/change child entry at parent |
| 989 |
#print "reference: " . ref($parent->{$nodename}) . "\n"; |
| 990 |
if(ref($parent->{$nodename}) eq 'ARRAY') { |
| 991 |
# (seems, only on Linux node's are tied!!) |
| 992 |
if($tied_node) { |
| 993 |
# all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type, |
| 994 |
# so a 'PUSH' is not implemented (which could be then done transparently) |
| 995 |
my $array = $tied_node->FETCH; |
| 996 |
push @$array, $child_entry; |
| 997 |
$tied_node->STORE($array); |
| 998 |
# node will be normaly untied at 'STORE' |
| 999 |
if(tied $parent->{$nodename}) { print "already tied !!\n"; } |
| 1000 |
else { undef $tied_node; } |
| 1001 |
} else { |
| 1002 |
push @{$parent->{$nodename}}, $child_entry; |
| 1003 |
} |
| 1004 |
} |
| 1005 |
elsif(ref($parent->{$nodename}) eq 'HASH') { |
| 1006 |
if(my $key = $query_args->{hash_key}) { |
| 1007 |
# (seems, only on Linux node's are tied!!) |
| 1008 |
if($tied_node) { |
| 1009 |
# same problem as with 'ARRAY': |
| 1010 |
# all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type. |
| 1011 |
my $hash = $tied_node->FETCH; |
| 1012 |
$hash->{$key} = $child_entry; |
| 1013 |
$tied_node->STORE($hash); |
| 1014 |
# node will be normaly untied at 'STORE' |
| 1015 |
if(tied $parent->{$nodename}) { print "already tied !!\n"; } |
| 1016 |
else { undef $tied_node; } |
| 1017 |
} else { |
| 1018 |
$parent->{$nodename}->{$key} = $child_entry; |
| 1019 |
} |
| 1020 |
} else { |
| 1021 |
print "ERROR: No HASH KEY given, so not able to insert hash entry!"; |
| 1022 |
} |
| 1023 |
} |
| 1024 |
else { |
| 1025 |
$parent->{$nodename} = $child_entry; |
| 1026 |
} |
| 1027 |
|
| 1028 |
# debug |
| 1029 |
#print "Parent_new: " . Dumper($parent); |
| 1030 |
|
| 1031 |
# save parent |
| 1032 |
$core->update($parent); |
| 1033 |
|
| 1034 |
# debug |
| 1035 |
#print "Saved Parent: ". Dumper($parent); |
| 1036 |
|
| 1037 |
return $child_entry; |
| 1038 |
} |
| 1039 |
|
| 1040 |
|
| 1041 |
1; |
| 1042 |
__END__ |
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