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<?php |
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/** |
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* This file contains the GenericDataSource child class |
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* that may use arbitrary code modules as database handlers. |
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* It's aims are to get together: |
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* o phpHtmlLibs "source-handlers" |
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* o PEAR's database handlers |
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* o custom ones (e.g. Data::Driver::Proxy object, which talks to a remote rpc server) |
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* |
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* @author Andreas Motl <andreas.motl@ilo.de> |
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* @package phpHtmlLib |
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* @module GenericDataSource |
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* |
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*/ |
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|
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/** |
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* $Id: GenericDataSource.inc,v 1.3 2003/03/03 21:24:18 joko Exp $ |
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* |
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* $Log: GenericDataSource.inc,v $ |
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* Revision 1.3 2003/03/03 21:24:18 joko |
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* now based on DesignPattern::RemoteProxy |
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* |
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* Revision 1.2 2003/03/02 01:05:13 joko |
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* - purged old code |
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* |
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* Revision 1.1 2003/03/01 21:47:15 joko |
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* renamed from AbstractDataSource.inc |
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* |
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* Revision 1.1 2003/03/01 20:17:15 joko |
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* renamed from GenericDataSource.inc |
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* replaced '_proxy' through '_handler' to better associate the ability to act as a generic dispatcher handler |
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* |
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* Revision 1.3 2003/03/01 15:36:11 joko |
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* + debugging |
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* + renamed some methods regarding new proposal (build_handler_options, fetch_result, etc.) |
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* |
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* Revision 1.2 2003/03/01 04:50:27 joko |
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* encapsulated all output into tracing mode |
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* disabled tracing |
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* |
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* Revision 1.1 2003/03/01 03:10:40 joko |
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* + initial commit |
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* |
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* |
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*/ |
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|
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/** |
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* This requires the MemoryDataSource base class |
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* |
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*/ |
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|
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// V1: compile-time-include, stable since years ;-) |
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//include_once($phphtmllib."/widgets/data_source/MemoryDataSource.inc"); |
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|
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// V2: runtime-load proposal, more flexible |
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// loadModule('MemoryDataSource', 'inc'); // doesn't work (would do if basepath of module is in libpath) |
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// loadModule($phphtmllib . '::widgets::data_source::MemoryDataSource', 'inc'); // works (by accident) |
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// loadModule($phphtmllib . "/widgets/data_source/MemoryDataSource", "inc"); // works (should be stable) |
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// loadModule($phphtmllib . "/widgets/data_source/MemoryDataSource.inc", null); // works (should be stable) |
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|
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|
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|
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/** |
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* Have to have PEAR and DB included |
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* the pear dir must be in the |
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* include path. |
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*/ |
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// require_once("PEAR.php"); // FIXME: what about PEAR::XML::RPC? |
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// require_once("DB.php"); |
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|
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/** |
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* This GenericDataSource child class is *completely* independent |
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* of a specific storage implementation and intended to be a wrapper |
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* class on the way from phpHtmlLib to Xyz. |
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* ("Yyz" gets represented by Data::Storage by now.....) |
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* |
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* GenericDataSource interacts with an intermediate "proxy" object |
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* (e.g. Data::Driver::Proxy) when doing queries. |
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* Don't mix this up with a persistent database handle which gets |
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* reused each and every time for different queries. |
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* Here *is* a new instance of Data::Driver::Proxy for *each* query. |
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* |
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* But the point is: Caching! The actual *data* isn't read redundant! |
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* |
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* |
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* !!!!!! refactor this to Data::Driver::Proxy !!!!!! <----------------- |
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* |
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* Data::Driver::Proxy instantiates "handlers" below itself |
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* which act as encapsulated workers to actually do the stuff to do. |
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* It can cache data for "disconnected mode" using the |
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* php PEAR DB abstraction objects. |
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* One worker already implemented is Data::Driver::RPC::Remote, which |
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* talks to a RPC::XML server (todo: talk SOAP!) using PEAR::XML::RPC. |
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* |
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* --- refactored here, but: redundant somehow --- |
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* Data::Driver::Proxy uses a PEAR XML::RPC object to actually |
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* talk HTTP and serialize data chunks to and from XML, |
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* but adds some caching to this "process of fetching data from a remote side". |
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* It "proxies" arbitrary data chunks a) inside a native php4 session, |
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* b) by talking to a rdbms (single proxy-table) or c) [TODO] using PEAR::Cache. |
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* --- refactored here, but: redundant somehow --- |
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* |
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* !!!!!! refactor this to Data::Driver::Proxy !!!!!! <----------------- |
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* |
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* |
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* How to use? |
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* |
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* Pass an array holding "locator metadata" to the constructor. |
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* GenericDataSource takes care of the rest. |
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* |
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* Pass an array to the constructor: (e.g.) |
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* |
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* 1. doing rpc-calls.... |
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* $locator = array( |
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* type => 'rpc', |
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* metadata => array( Host => 'localhost', Port => '8765' ), |
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* ); |
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* $source = new GenericDataSource($locator); |
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* $this->set_data_source( &$source ); |
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* |
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* 2. [proposal] common datahandles.... |
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* $locator = array( |
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* type => 'mysql', |
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* dsn => 'known dsn markup', |
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* ); |
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* $source = new GenericDataSource($locator); |
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* $this->set_data_source( &$source ); |
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* |
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* @author Andreas Motl <andreas.motl@ilo.de> |
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* @author Sebastian Utz <seut@tunemedia.de> |
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* @copyright (c) 2003 - All Rights reserved. |
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* @license GNU LGPL (GNU Lesser General Public License) |
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* |
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* @author-url http://www.netfrag.org/~joko/ |
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* @author-url http://www.netfrag.org/~jonen/ |
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* @license-url http://www.gnu.org/licenses/lgpl.txt |
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* |
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* @package phpHtmlLib |
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* @module GenericDataSource |
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* |
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*/ |
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|
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/** |
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* Todo: |
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* |
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* o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles |
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* o implement another Data::Driver::Proxy container |
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* |
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*/ |
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|
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|
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// !!!!!!!! THIS IS THE PROBLEM !!!!!!!! |
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// !!!!!!!! here is it where we have to break inheritance again !!!!!!!! |
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// |
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// THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy |
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// inheritance trees at the same time, which is *not* possible at |
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// declare-time. We *do* need some runtime-infrastructure to solve this! |
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// |
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// TODO: move build- and check-locator stuff from ObjectList to this place!!! |
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// |
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// ABOUT: |
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// 1. otherwhere: WebApp - scope: |
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// x handles page vs. block vs. widget; dispatches MVC-View |
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// 2. here: DataSource - scope: |
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// x handles bridge to frameworks (e.g. phpHtmlLib) vs. actual data driver libs (PEAR, etc.)) |
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// o clean implementation using a DesignPattern::AdapterProxy |
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// |
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|
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loadModule('DesignPattern::Proxy'); |
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loadModule('DesignPattern::TransparentProxy'); |
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loadModule('DesignPattern::RemoteProxy'); |
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|
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//class GenericDataSource extends MemoryDataSource { |
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//class GenericDataSource extends DesignPattern_Proxy { |
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//class GenericDataSource extends DesignPattern_RemoteProxy { |
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//class GenericDataSource extends DesignPattern_TransparentProxy { |
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|
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//class GenericDataSource extends MemoryDataSource { |
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//loadModule("DataSource::Proxy::Memory"); |
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//class GenericDataSource extends DataSource_Proxy_Memory { |
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//class DataSource_GenericDataSource extends DataSource_Proxy_Memory { |
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//class DataSource_GenericDataSource extends DesignPattern_Proxy { |
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//class DataSource_GenericDataSource extends DataSource_Proxy_Memory { |
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|
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// now independent!!! new class-inheritance-tree possible now! |
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// solved by having an Adapter *and* a Proxy here! |
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//class GenericDataSource { |
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|
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loadModule('DesignPattern::AdapterProxy'); |
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class DataSource_Generic extends DesignPattern_AdapterProxy { |
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|
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// !!!!!!!! here is it where we have to break inheritance again !!!!!!!! |
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// !!!!!!!! THIS IS THE PROBLEM !!!!!!!! |
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|
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|
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|
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/** |
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* This var holds the locator metadata hash |
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* that is used to feed metadata to a per-query-instance |
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* of an Adapter object. |
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* |
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*/ |
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//var $_locator = NULL; |
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|
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/** |
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* This var holds the locator metadata hash |
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* which is built from some predefined rules |
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* using metadata from $_options and some |
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* other presets. |
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* |
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* See '_buildLocator' which acts as a dispatcher |
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* depending on $_options[datasource]. |
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* (main dispatching level) |
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* |
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* The structure of a full blown locator looks like this: |
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* |
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* $locator = array( |
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* type => '<your type specifying the datasource-type>', |
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* metadata => array( |
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* ... your arbitrary deep metadata structure ... |
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* ), |
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* [dsn => '<your dsn markup>'], |
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* ); |
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* |
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* Example 1 - data is inside a rdbms, using a dsn to connect to it: |
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* $locator = array( |
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* type => 'sql', |
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* dsn => 'mysql://username:password@localhost/database', |
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* ); |
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* |
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* Example 2 - data is inside an odbms, reachable by doing remote procedure calls (rpc): |
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* $locator = array( |
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* type => 'rpc', |
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* metadata => array( |
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* package => 'Data::Driver::Proxy', |
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* Host => 'localhost', |
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* Port => '8765', |
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* ) |
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* ); |
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* |
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*/ |
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var $_locator = NULL; |
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|
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|
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/** |
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* This var holds the module information required to |
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* create instances of a Proxy and an Adapter. |
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* Information might get extracted from a |
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* DataSource::Locator instance. |
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* |
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* --- A skeleton: |
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* |
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* $this->_modules = array( |
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* _proxy => array( _id => '', _module => '', _options = array(), _instance => &$obj), |
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* _adapter => array( _id => '', _module => '', _options = array(), _instance => &$obj), |
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* ); |
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* |
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* |
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* --- An example: |
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* |
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* $this->_modules = array( |
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* _proxy => array( _id => 'rpc', _module => 'DesignPattern::RemoteProxy', _instance => &$obj), |
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* _adapter => array( _id => 'phpHtmlLib', _module => 'DataSource::Adapter::phpHtmlLib::DataListSource', _instance => &$obj), |
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* ); |
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* |
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* |
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*/ |
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//var $_modules = NULL; |
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|
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|
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/** |
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* This var holds the query hash |
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* that is used to feed as query to a per-query-instance |
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* of a Data::Driver::Proxy object. |
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* |
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*/ |
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var $_query = NULL; |
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|
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|
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/** |
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* this holds the query result from the |
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* Data::Driver::Proxy->queryXyz() call |
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* |
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*/ |
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var $_result = NULL; |
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|
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|
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|
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/** |
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* The constructor is used to pass in the |
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* locator metadata hash. |
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* |
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* @param LocatorMetadataHash array - layout: array( type => '', metadata => '', dsn => '' ) |
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* @param Query array - layout: array( type => '', metadata => '', dsn => '' ) |
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*/ |
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|
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|
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function DataSource_Generic( &$locator, $query ) { |
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|
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// copy parameter from query to locator |
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//$this->_locator->merge_to($this->_locator, array( datasource_type => $query[datasource] ), '_'); |
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//$this->_locator->_datasource_type = $query[datasource]; |
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//$locator[_datasource_type] = $query[datasource]; |
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|
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// build master locator |
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$this->_locator = php::mkComponent('DataSource::Locator', $locator, array( datasource_type => $query[datasource] ) ); |
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//exit; |
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//$this->_locator = php::mkComponent('DataSource::Locator'); |
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|
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$this->_locator->check(); |
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|
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// trace |
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//print "locator-obj: " . Dumper($this->_locator); |
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//print "locator-data: " . Dumper($locator_data); |
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//exit; |
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|
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|
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|
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/* |
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$this->_modules = array( |
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_proxy => array( _id => $locator->_datasource_type ), |
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_adapter => array( _id => $locator->_adapter_type ), |
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); |
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*/ |
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|
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//$this->set_locator( $locator ); |
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$this->set_query( $query ); |
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|
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|
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|
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/* |
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// V1: |
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// pre-flight: establish and check locator metadata |
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$this->_buildLocator(); |
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$this->_checkLocator(); |
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*/ |
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|
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|
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|
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// pre-flight: check locator metadata |
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//$locator->build(); |
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if (!$this->_locator->check()) { |
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user_error("locator-check failed."); |
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exit; |
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//return; |
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} |
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|
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//exit; |
| 349 |
|
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|
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// --- Proxy selector/dispatcher ... |
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|
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switch ($this->_locator->_datasource_type) { |
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case 'rpc': |
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//$locator_data = $this->_locator->get_metadata(); |
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//$this->_modules[_proxy][_options] = array( locator => $this->_locator, query => $query ); |
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//$this->_modules[_proxy][_module] = 'DataSource::Proxy::XMLRPC'; |
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|
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//$this->_modules[_proxy][_module] = 'DesignPattern::RemoteProxy'; |
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//$this->_modules[_proxy][_options] = $locator_data; |
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|
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//$this->set_component_name('DesignPattern::RemoteProxy'); |
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//$this->set_component_options($locator_data); |
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|
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$this->set_component_name('DesignPattern::RemoteProxy'); |
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|
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break; |
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default: |
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user_error("Site::GenericPage: no Proxy could be selected!"); |
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break; |
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} |
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|
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|
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|
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/* |
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// V1: |
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// make up dummy args by now |
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$args = array( |
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adapter => 'phpHtmlLib', |
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); |
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*/ |
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|
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// V2: now propagated from caller! |
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|
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//print Dumper(array( locator => $locator, query => $query )); |
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//exit; |
| 387 |
|
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//$this->create_adapter($this->module, $this->function, $this->arguments); |
| 389 |
//$this->set_handler( $this->get_adapter() ); |
| 390 |
|
| 391 |
|
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// --- Adapter selector/dispatcher ... |
| 393 |
// ... resolves this._modules.adapter._id to this._modules.adapter._module |
| 394 |
|
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switch ($locator->_adapter_type) { |
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case 'phpHtmlLib': |
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//$adapter_arguments = $args[title]; |
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|
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$this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource'); |
| 400 |
|
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// in order to let the Adapter communicate with the Proxy, |
| 402 |
// instantiate a wrapper method in a third namespace via |
| 403 |
// Exporter::export_symbol(from, to) |
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$this->set_adapter_options($this); |
| 405 |
|
| 406 |
|
| 407 |
break; |
| 408 |
default: |
| 409 |
user_error("DataSource::GenericDataSource: no Adapter could be selected!"); |
| 410 |
break; |
| 411 |
} |
| 412 |
|
| 413 |
|
| 414 |
|
| 415 |
// --- module instantiation - Proxy and Adapter |
| 416 |
|
| 417 |
//user_error("handle proxy here!"); |
| 418 |
//$this->create_proxy(); |
| 419 |
|
| 420 |
//print Dumper($this); |
| 421 |
|
| 422 |
//print "this: " . Dumper($this); |
| 423 |
|
| 424 |
// V1: |
| 425 |
/* |
| 426 |
$proxy = php::mkComponent($this->_modules[_proxy][_module], $this->_modules[_proxy][_options]); |
| 427 |
print "proxy: " . Dumper($proxy); |
| 428 |
//exit; |
| 429 |
*/ |
| 430 |
|
| 431 |
// V2: |
| 432 |
/* |
| 433 |
$resultHandle = mkObject('DesignPattern::RemoteProxy', $cache_key, array( key => 1, command => $command, query => $query, remote => 1, rpcinfo => $rpcinfo, cache => array( db => 0, session => 1 ) ) ); |
| 434 |
$result = $resultHandle->getAttributes(); |
| 435 |
return $result; |
| 436 |
*/ |
| 437 |
|
| 438 |
// V3: |
| 439 |
// $this->set_handler( $proxy ); |
| 440 |
|
| 441 |
// V4: use _component_name & _component_options (proposal from GenericPage) |
| 442 |
// $this->_component_name = ... |
| 443 |
// $this->create_handler(); |
| 444 |
|
| 445 |
|
| 446 |
// V1: |
| 447 |
//$this->create_adapter($adapter_module, $this->function, $this->arguments); |
| 448 |
|
| 449 |
// V2: FIXME - better use V1? |
| 450 |
$adapter = php::mkComponent($this->get_adapter_module(), $this->get_adapter_options()); |
| 451 |
$this->set_adapter($adapter); |
| 452 |
|
| 453 |
|
| 454 |
|
| 455 |
|
| 456 |
} |
| 457 |
|
| 458 |
function make_adapter_transparent() { |
| 459 |
|
| 460 |
// ... known from Site::Adapter::php::Class: |
| 461 |
|
| 462 |
// At this place the Adapter becomes a Proxy. |
| 463 |
// This functionality currently correlates to the |
| 464 |
// name of our ancestor, DesignPattern::AdapterProxy. |
| 465 |
// FIXME: move this code to its namespace!!! |
| 466 |
// FIXME: rename to set_proxy... |
| 467 |
|
| 468 |
// The reason this has to occour here is required |
| 469 |
// by the TransparentProxy to actually make the |
| 470 |
// _handler (_proxy) transparent later.... |
| 471 |
//$this->set_proxy( $this->get_adapter() ); |
| 472 |
} |
| 473 |
|
| 474 |
/** |
| 475 |
* Set the metadata information |
| 476 |
* (a DataSource::Locator) we will use |
| 477 |
* to build encapsulated instances |
| 478 |
* of both a Proxy and an Adapter. |
| 479 |
* |
| 480 |
* @param LocatorMetadataHash array - |
| 481 |
* |
| 482 |
*/ |
| 483 |
function set_metadata( &$locator ) { |
| 484 |
$this->_locator = &$locator; |
| 485 |
} |
| 486 |
|
| 487 |
function &get_metadata() { |
| 488 |
return $this->_locator; |
| 489 |
} |
| 490 |
|
| 491 |
|
| 492 |
/** |
| 493 |
* Set the query metadata hash we will feed *completely* |
| 494 |
* to an encapsulated Proxy instance. |
| 495 |
* |
| 496 |
* @param QueryDeclaration array - |
| 497 |
* |
| 498 |
*/ |
| 499 |
function set_query( $query ) { |
| 500 |
$this->_query = $query; |
| 501 |
} |
| 502 |
|
| 503 |
/** |
| 504 |
* Issue remote/proxy call |
| 505 |
* Stolen from Application_AbstractBackend::_remote_method (RefactoringProposal?) |
| 506 |
* Tweaked a bit: proxy package now taken from $this->_handler_name |
| 507 |
* |
| 508 |
* Create a new instance of a proxy and store it for later reuse. |
| 509 |
* Read the locator metadata hash and create |
| 510 |
* the proxy handler instance using passed-in name. |
| 511 |
* |
| 512 |
* @param string - $proxy_name (namespaced classname - perl syntax - e.g.: Data::Driver::Proxy) |
| 513 |
* |
| 514 |
*/ |
| 515 |
function datasource_handler_call() { |
| 516 |
|
| 517 |
|
| 518 |
// 1. read args and build cache key |
| 519 |
|
| 520 |
$arg_list = func_get_args(); |
| 521 |
$command = array_shift($arg_list); |
| 522 |
$cache_key = join("-", array(session_id(), $command, join('_', $arg_list) )); |
| 523 |
//print "cache_key: $cache_key<br>"; |
| 524 |
|
| 525 |
// FIXME: what if arg_list still contains more elements after doing this? |
| 526 |
$query = array_shift($arg_list); |
| 527 |
|
| 528 |
// 2. prepare proxy-options (read from locator) |
| 529 |
|
| 530 |
//print "this: " . Dumper($this); |
| 531 |
//exit; |
| 532 |
|
| 533 |
// read from locator metadata |
| 534 |
//$proxy_name = $this->_locator[metadata][package]; |
| 535 |
|
| 536 |
// V1: |
| 537 |
//$rpcinfo = array( Host => $this->_locator[metadata][Host], Port => $this->_locator[metadata][Port] ); |
| 538 |
|
| 539 |
// V2: |
| 540 |
$rpcinfo = $this->_locator->get_metadata(); |
| 541 |
|
| 542 |
// FIXME! implement this into Data::Driver::RPC::Remote! |
| 543 |
//$rpcinfo[to_latin] = 1; |
| 544 |
|
| 545 |
// FIXME! patch query |
| 546 |
if (sizeof($query) == 1) { |
| 547 |
$query = $query[0]; |
| 548 |
} |
| 549 |
|
| 550 |
//print "query: " . Dumper($query); |
| 551 |
|
| 552 |
// !!! use DesignPattern::Proxy here !!! |
| 553 |
// $proxy = new DesignPattern_Proxy($proxy_name, ...) |
| 554 |
// or: |
| 555 |
// $proxy = mkObject('DesignPattern::Proxy'); |
| 556 |
// $this->set_handler( $proxy ); |
| 557 |
// or: |
| 558 |
// $proxy = mkObject('DesignPattern::Proxy'); |
| 559 |
// $proxy-> |
| 560 |
// $this->set_handler( $proxy ); |
| 561 |
|
| 562 |
|
| 563 |
|
| 564 |
//$this->set_component_name( $proxy_name ); |
| 565 |
$this->set_component_options( $cache_key, array( key => 1, command => $command, query => $query, remote => 1, rpcinfo => $rpcinfo, cache => array( db => 0, session => 1 ) ) ); |
| 566 |
//print Dumper($this); |
| 567 |
//exit; |
| 568 |
|
| 569 |
$this->create_proxy(); |
| 570 |
|
| 571 |
//print Dumper($this); |
| 572 |
//exit; |
| 573 |
|
| 574 |
/* |
| 575 |
// -------------------- clone this & modify ---------- |
| 576 |
$proxy = mkObject($proxy_name, $cache_key, array( key => 1, command => $command, query => $query, remote => 1, rpcinfo => $rpcinfo, cache => array( db => 0, session => 1 ) ) ); |
| 577 |
$this->set_handler( $proxy ); |
| 578 |
//$result = $resultHandle->getAttributes(); |
| 579 |
//return $result; |
| 580 |
//$this->_result = $resultHandle->getAttributes(); |
| 581 |
//$this->_result = $this->_handler->getAttributes(); |
| 582 |
// -------------------- clone this & modify ---------- |
| 583 |
*/ |
| 584 |
|
| 585 |
} |
| 586 |
|
| 587 |
|
| 588 |
function datasource_handler_buildoptions() { |
| 589 |
|
| 590 |
//print Dumper($this->_query); |
| 591 |
//exit; |
| 592 |
|
| 593 |
// make up a command from metadata |
| 594 |
// FIXME: abstract this some more (e.g. via a CommandMapper|Registry) |
| 595 |
switch ($this->_query[metatype]) { |
| 596 |
case 'data': |
| 597 |
//$command = 'queryData'; |
| 598 |
$command = 'getObjects'; // FIXME!!! |
| 599 |
//$this->_locator->set_option('metadata.command', $command); |
| 600 |
$args = array(); |
| 601 |
switch ($this->_query[vartype]) { |
| 602 |
case 'object': |
| 603 |
if (!$this->_query[classname]) { |
| 604 |
$msg = "_query[vartype] == 'object' requires _query[classname]"; |
| 605 |
user_error("GenericDataSource::query_data() - failed: " . $msg); |
| 606 |
} |
| 607 |
array_push($args, $this->_query[classname]); |
| 608 |
break; |
| 609 |
} |
| 610 |
break; |
| 611 |
case 'schema': |
| 612 |
$command = 'querySchema'; |
| 613 |
break; |
| 614 |
} |
| 615 |
|
| 616 |
|
| 617 |
/* |
| 618 |
$this->_query[rpc_command] = $command; |
| 619 |
$this->_query[rpc_args] = $command; |
| 620 |
*/ |
| 621 |
|
| 622 |
// methods!!! |
| 623 |
$this->_locator->_call[_method] = $command; |
| 624 |
$this->_locator->_call[_arguments] = $args; |
| 625 |
|
| 626 |
//$adapter = $this->get_adapter(); |
| 627 |
|
| 628 |
// trace |
| 629 |
/* |
| 630 |
print Dumper(null, '<b>= = = = = = = = = = = = = = = = = = = = = =</b>'); |
| 631 |
print Dumper('datasource_handler_buildoptions', array( |
| 632 |
"_locator" => $this->_locator, |
| 633 |
"_query" => $this->_query, |
| 634 |
"command" => '<b>' . $command . "</b>", |
| 635 |
"args" => $args |
| 636 |
)); |
| 637 |
*/ |
| 638 |
|
| 639 |
/* |
| 640 |
$this->_handler_options = array( |
| 641 |
method => $command, |
| 642 |
args => $args, |
| 643 |
); |
| 644 |
*/ |
| 645 |
|
| 646 |
} |
| 647 |
|
| 648 |
function &fetch_result() { |
| 649 |
|
| 650 |
$this->datasource_handler_buildoptions(); |
| 651 |
|
| 652 |
$method = $this->_locator->_call[_method]; |
| 653 |
$args = $this->_locator->_call[_arguments]; |
| 654 |
|
| 655 |
// pre-flight checks |
| 656 |
if (!$method) { |
| 657 |
$msg = "Remote command could not be resolved, please pass in or check configuration."; |
| 658 |
user_error("GenericDataSource::query_data() - failed: " . $msg); |
| 659 |
return; |
| 660 |
} |
| 661 |
|
| 662 |
//print "fetch_result: this->_handler=" . Dumper($this->_handler); |
| 663 |
|
| 664 |
// do remote call here and get result |
| 665 |
// FIXME: handle synchronous/asynchronous mode here!!! |
| 666 |
$this->datasource_handler_call($method, $args); |
| 667 |
|
| 668 |
|
| 669 |
// TODO: ... = $this->poll_handler_result and $this->get_handler_result |
| 670 |
$proxy = $this->get_proxy(); |
| 671 |
$this->_result = $proxy->getResult(); |
| 672 |
//print "result: " . Dumper($this->_result); exit; |
| 673 |
|
| 674 |
$this->_result_count = sizeof($this->_result); |
| 675 |
|
| 676 |
// trace |
| 677 |
if ($this->_debug[notice]) { |
| 678 |
//print "_result = " . Dumper($this->_result); |
| 679 |
print "DataSource::Generic->_result_count = " . $this->_result_count . "<br/>"; |
| 680 |
} |
| 681 |
|
| 682 |
return $this->_result; |
| 683 |
|
| 684 |
} |
| 685 |
|
| 686 |
|
| 687 |
function &query_data() { |
| 688 |
//print "query!<br/>"; |
| 689 |
return $this->fetch_result(); |
| 690 |
//$this->handle_result(); |
| 691 |
} |
| 692 |
|
| 693 |
function query_schema() { |
| 694 |
user_error("FIXME: query_schema"); |
| 695 |
// $this->datasource_handler_call( ... ); |
| 696 |
} |
| 697 |
|
| 698 |
function &get_result() { |
| 699 |
return $this->_result; |
| 700 |
} |
| 701 |
|
| 702 |
} |
| 703 |
|
| 704 |
?> |
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