| 1 |
<?php |
| 2 |
/** |
| 3 |
* This file contains the FormWizard class. |
| 4 |
* |
| 5 |
* $Id: FormWizard.inc,v 1.4 2003/08/19 00:48:57 hemna Exp $ |
| 6 |
* |
| 7 |
* @author Walter A. Boring IV <waboring@buildabetterweb.com> |
| 8 |
* @package phpHtmlLib |
| 9 |
* @subpackage FormProcessing |
| 10 |
* |
| 11 |
* @copyright LGPL - See LICENCE |
| 12 |
* |
| 13 |
*/ |
| 14 |
|
| 15 |
define("WIZARD_VISITED", "_wizard_visited"); |
| 16 |
define("WIZARD_STEP", "_wizard_step"); |
| 17 |
define("WIZARD_TO_STEP", "_wizard_to_step"); |
| 18 |
define("WIZARD_ID", "_wizard_id"); |
| 19 |
define("WIZARD_ACTION", "_wizard_action"); |
| 20 |
|
| 21 |
define("WIZARD_NEXT", "NEXT"); |
| 22 |
define("WIZARD_PREV", "PREV"); |
| 23 |
define("WIZARD_JUMP", "JUMP"); |
| 24 |
define("WIZARD_FINAL", "FINAL"); |
| 25 |
|
| 26 |
class FormWizard extends FormProcessor { |
| 27 |
|
| 28 |
/** |
| 29 |
* This holds the array of |
| 30 |
* step objects for the |
| 31 |
* wizard |
| 32 |
*/ |
| 33 |
var $_steps = array(); |
| 34 |
|
| 35 |
|
| 36 |
/** |
| 37 |
* Holds a bunch of state |
| 38 |
* variables |
| 39 |
*/ |
| 40 |
var $_vars = array("to_step" => 0, |
| 41 |
"num_steps" => 0, |
| 42 |
"on_confirm" => FALSE, |
| 43 |
WIZARD_ID => NULL ); |
| 44 |
|
| 45 |
/** |
| 46 |
* The constructor |
| 47 |
* |
| 48 |
*/ |
| 49 |
function FormWizard() { |
| 50 |
//user_error(__CLASS__."::".__FUNCTION__." - this class isn't done yet."); |
| 51 |
$this->_session_test(); |
| 52 |
$this->set_form_name( "form_wizard" ); |
| 53 |
$this->set_form_action( $_SERVER["PHP_SELF"] ); |
| 54 |
|
| 55 |
//let the child class add the steps |
| 56 |
$this->user_setup(); |
| 57 |
|
| 58 |
//init our vars |
| 59 |
$this->_init(); |
| 60 |
|
| 61 |
//Set up the Validation object |
| 62 |
//and the FormErrors object to |
| 63 |
//be used by this form. |
| 64 |
$this->setup_validation(); |
| 65 |
|
| 66 |
//set the current step |
| 67 |
$this->_set_step(); |
| 68 |
|
| 69 |
//now process the form |
| 70 |
$this->_process_form(); |
| 71 |
|
| 72 |
//now we need to process the current step. |
| 73 |
} |
| 74 |
|
| 75 |
|
| 76 |
/** |
| 77 |
* This function renders the |
| 78 |
* FormWizard |
| 79 |
* |
| 80 |
*/ |
| 81 |
function render($indent_level=0, $output_debug=0) { |
| 82 |
$container = container(); |
| 83 |
|
| 84 |
//add the JS |
| 85 |
$container->add( $this->_build_js() ); |
| 86 |
|
| 87 |
$container->add( $this->_build_toolbar(), |
| 88 |
html_br(2) ); |
| 89 |
|
| 90 |
if ($this->_has_errors) { |
| 91 |
//we need to render the form errors |
| 92 |
//and then the form |
| 93 |
$container->add( $this->render_error($indent_level, $output_debug) ); |
| 94 |
} else { |
| 95 |
//there are no errors! |
| 96 |
debug( "have we visited?" ,null,4); |
| 97 |
//debug( $_REQUEST ); |
| 98 |
if (isset($_REQUEST[FORM_VISITED]) && $_REQUEST[FORM_VISITED] == 1) { |
| 99 |
//looks like the form has been processed? |
| 100 |
debug( "confirmed = ".$this->_confirmed ); |
| 101 |
debug( "curr step = ".$this->_current_step() ); |
| 102 |
if (!$this->_confirmed && $this->_vars["on_confirm"]) { |
| 103 |
debug("FINAL DUDE!"); |
| 104 |
$container->add( $this->render_confirm($indent_level, $output_debug) ); |
| 105 |
} else { |
| 106 |
//Looks like the action worked |
| 107 |
$success = $this->_form_content->form_success(); |
| 108 |
debug("DO ACTION!"); |
| 109 |
if ($this->_form_success_render) { |
| 110 |
$container->add( $this->render_form($indent_level, $output_debug, $success) ); |
| 111 |
} else { |
| 112 |
if (method_exists($success,"render")) { |
| 113 |
//looks like this is an object. |
| 114 |
//we'll assume it has a render function. |
| 115 |
$container->add( $success->render($indent_level, $output_debug) ); |
| 116 |
} else { |
| 117 |
//since its not an object, |
| 118 |
//lets just display it. |
| 119 |
$container->add( $success ); |
| 120 |
} |
| 121 |
} |
| 122 |
} |
| 123 |
} else { |
| 124 |
$container->add( $this->render_form($indent_level, $output_debug) ); |
| 125 |
} |
| 126 |
} |
| 127 |
|
| 128 |
return $container->render($indent_level, $output_debug); |
| 129 |
} |
| 130 |
|
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|
| 132 |
/** |
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* This method does the logic of |
| 134 |
* doing the form processing |
| 135 |
*/ |
| 136 |
function _process_form() { |
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//Has this step been visited yet? |
| 138 |
|
| 139 |
if (!$this->_is_step_visited($this->_current_step()) && |
| 140 |
$this->_current_step() <= $this->_vars["num_steps"]) { |
| 141 |
$this->_form_content->form_init_data(); |
| 142 |
} |
| 143 |
|
| 144 |
//we only need to process the form |
| 145 |
//if it has been visited. Otherwise |
| 146 |
//it just gets rendered. |
| 147 |
if (@$_REQUEST[FORM_VISITED] == 1) { |
| 148 |
debug("PROCESS STEP ".$this->_current_step()); |
| 149 |
$this->_form_content->set_action($_REQUEST[FORM_ACTION]); |
| 150 |
|
| 151 |
//let see if this was a confirmation page. |
| 152 |
if ( @$_REQUEST[WIZARD_ACTION] == WIZARD_FINAL ) { |
| 153 |
//looks like this was a submit on a |
| 154 |
//confirmation page. we don't need |
| 155 |
//to do form field validation. |
| 156 |
$this->_confirmed = TRUE; |
| 157 |
for ($i=0; $i<=$this->_vars["num_steps"]-1; $i++) { |
| 158 |
$this->_has_errors = !$this->_steps[$i]["form"]->form_action(); |
| 159 |
} |
| 160 |
} else { |
| 161 |
//we haven't been confirmed, so we |
| 162 |
//need to validate the form. |
| 163 |
if ($this->can_validate()) { |
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//looks like we should do validation |
| 165 |
if ($_REQUEST[WIZARD_ACTION] != WIZARD_PREV) { |
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//we don't need to validate if we haven't |
| 167 |
//finished this step yet. |
| 168 |
$this->do_validation(); |
| 169 |
} |
| 170 |
} |
| 171 |
if (!$this->_has_errors) { |
| 172 |
//no errors were found |
| 173 |
//make sure we don't have any backend errors |
| 174 |
$this->_has_errors = !$this->_form_content->form_backend_validation(); |
| 175 |
if (!$this->_has_errors) { |
| 176 |
//ok this step validated. lets display the next. |
| 177 |
//mark this step as visited |
| 178 |
$current_step = $this->_current_step(); |
| 179 |
debug( "CURRENT STEP ".$current_step); |
| 180 |
|
| 181 |
switch ($_REQUEST[WIZARD_ACTION]) { |
| 182 |
case WIZARD_NEXT: |
| 183 |
debug("NEXT"); |
| 184 |
if ($current_step == $this->_vars["num_steps"]) { |
| 185 |
debug("SHOW CONFIRMATION"); |
| 186 |
//we need to show the confirmation |
| 187 |
//don't process |
| 188 |
$this->_vars["on_confirm"] = TRUE; |
| 189 |
$this->_step_visited( $current_step ); |
| 190 |
$this->_set_current_step($current_step+1); |
| 191 |
} else { |
| 192 |
$this->_step_visited( $current_step ); |
| 193 |
$this->_set_current_step($current_step+1); |
| 194 |
unset($_REQUEST[FORM_VISITED]); |
| 195 |
$this->_form_content = &$this->_steps[$this->_current_step()-1]["form"]; |
| 196 |
//$this->_process_form(); |
| 197 |
} |
| 198 |
break; |
| 199 |
|
| 200 |
case WIZARD_PREV: |
| 201 |
debug("PREV"); |
| 202 |
$this->_set_current_step($current_step-1); |
| 203 |
unset($_REQUEST[FORM_VISITED]); |
| 204 |
$this->_form_content = &$this->_steps[$this->_current_step()-1]["form"]; |
| 205 |
//$this->_process_form(); |
| 206 |
break; |
| 207 |
} |
| 208 |
} |
| 209 |
} |
| 210 |
} |
| 211 |
} |
| 212 |
debug("bail"); |
| 213 |
} |
| 214 |
|
| 215 |
|
| 216 |
/** |
| 217 |
* This function renders the confirmation |
| 218 |
* page. This page sits in between the |
| 219 |
* front end form, and the action handler. |
| 220 |
* This only gets called after a form |
| 221 |
* and its data has been successfully |
| 222 |
* validated. |
| 223 |
* |
| 224 |
* @param int - $indent_level |
| 225 |
* @param int - $output_debug |
| 226 |
* |
| 227 |
* @return string - the raw html |
| 228 |
*/ |
| 229 |
function render_confirm( $indent_level, $output_debug ) { |
| 230 |
debug("BUILD CONFIRM"); |
| 231 |
//build the $this->_form object. |
| 232 |
$this->_build_form_tag(); |
| 233 |
|
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//add the confirm object/html |
| 235 |
for($i=0; $i<=$this->_vars["num_steps"]-1; $i++) { |
| 236 |
$title = "Step ".($i+1)." : ".$this->_steps[$i]["title"]; |
| 237 |
$this->_form->add( $this->_steps[$i]["form"]->form_confirm($title, FALSE), |
| 238 |
html_br(2)); |
| 239 |
} |
| 240 |
//$confirm = &$this->_form_content->form_confirm( $this->data ); |
| 241 |
//$this->_form->add_reference( $confirm ); |
| 242 |
|
| 243 |
//ok add all of the submitted data as hidden form fields |
| 244 |
$this->_add_confirm_data(); |
| 245 |
|
| 246 |
//Ok lets add our hidden vars |
| 247 |
$this->__hidden_fields(); |
| 248 |
|
| 249 |
return $this->_form->render($indent_level, $output_debug); |
| 250 |
} |
| 251 |
|
| 252 |
/** |
| 253 |
* A subclass can override this function |
| 254 |
* to setup the class variables after |
| 255 |
* the constructor. The constructor |
| 256 |
* automatically calls this function. |
| 257 |
* |
| 258 |
*/ |
| 259 |
function user_setup() { |
| 260 |
trigger_error("FormWizard::user_setup() - ". |
| 261 |
"child class must override this method ". |
| 262 |
"to add the wizard steps"); |
| 263 |
} |
| 264 |
|
| 265 |
|
| 266 |
/** |
| 267 |
* This adds a step to the wizard |
| 268 |
* |
| 269 |
* @param string - the title for the step |
| 270 |
* @param string - the description for the step |
| 271 |
* @param string - the help url for the step (if any) |
| 272 |
* @param FormContent - the form content object |
| 273 |
* that is the step. |
| 274 |
*/ |
| 275 |
function add_step( $title, $desc, $help, &$step ) { |
| 276 |
$this->_steps[] = array("title" => $title, |
| 277 |
"desc" => $desc, |
| 278 |
"help" => $help, |
| 279 |
"form" => &$step); |
| 280 |
$this->_vars["num_steps"]++; |
| 281 |
} |
| 282 |
|
| 283 |
|
| 284 |
/** |
| 285 |
* This function initializes all of the fields we |
| 286 |
* need to keep track of for the internal state |
| 287 |
* of the wizard. It also walks each of the |
| 288 |
* step FormContent objects and initializes them. |
| 289 |
* |
| 290 |
* We save some of the state of the wizard in |
| 291 |
* the session. |
| 292 |
*/ |
| 293 |
function _init() { |
| 294 |
if (!isset($_REQUEST[WIZARD_VISITED])) { |
| 295 |
|
| 296 |
$this->_vars[WIZARD_ID] = uniqid("wizard_"); |
| 297 |
//debug( $this->_vars ); |
| 298 |
|
| 299 |
$this->_init_session(); |
| 300 |
$this->_vars["to_step"] = 2; |
| 301 |
} else { |
| 302 |
$this->_vars[WIZARD_ID] = $_REQUEST[WIZARD_ID]; |
| 303 |
$current_step = $this->_current_step(); |
| 304 |
$this->_vars["to_step"] = $current_step++; |
| 305 |
|
| 306 |
//if ($this->_vars["current_step"] == count($this->_steps)) { |
| 307 |
// $this->_vars["to_step"] = WIZARD_FINAL; |
| 308 |
//} else { |
| 309 |
// $this->_vars["to_step"] = WIZARD_NEXT; |
| 310 |
//} |
| 311 |
} |
| 312 |
//debug( $_SESSION ); |
| 313 |
|
| 314 |
//initialize all of the Forms |
| 315 |
//so they retain their data. |
| 316 |
for ($i=0; $i<=$this->_vars["num_steps"]-1; $i++) { |
| 317 |
$this->_steps[$i]["form"]->form_init_elements(); |
| 318 |
} |
| 319 |
|
| 320 |
} |
| 321 |
|
| 322 |
/** |
| 323 |
* This function sets the _form_content |
| 324 |
* object for the current step we are operating on. |
| 325 |
* The parent FormProcessor needs this object set |
| 326 |
* in order to process the step correctly. |
| 327 |
* |
| 328 |
*/ |
| 329 |
function _set_step() { |
| 330 |
$this->_form_content = &$this->_steps[$this->_current_step()-1]["form"]; |
| 331 |
} |
| 332 |
|
| 333 |
function __hidden_fields() { |
| 334 |
|
| 335 |
//add all of the other steps fields |
| 336 |
//we need to add all the previous visted steps |
| 337 |
//fields so we save em. |
| 338 |
$step_count = 1; |
| 339 |
foreach( $this->_steps as $step ) { |
| 340 |
if ($step_count != $this->_current_step()) { |
| 341 |
$this->_form_content = &$step["form"]; |
| 342 |
$this->_add_confirm_data(); |
| 343 |
} |
| 344 |
$step_count++; |
| 345 |
} |
| 346 |
|
| 347 |
if (isset($_REQUEST[WIZARD_ACTION]) && |
| 348 |
$_REQUEST[WIZARD_ACTION] == WIZARD_FINAL) { |
| 349 |
$this->_set_step(); |
| 350 |
} |
| 351 |
|
| 352 |
parent::__hidden_fields(); |
| 353 |
|
| 354 |
//$this->_form->add( form_hidden(WIZARD_STEP, $this->_vars["current_step"]) ); |
| 355 |
$this->_form->add( form_hidden(WIZARD_TO_STEP, $this->_vars["to_step"]) ); |
| 356 |
$this->_form->add( form_hidden(WIZARD_ID, $this->_vars[WIZARD_ID]) ); |
| 357 |
$this->_form->add( form_hidden(WIZARD_ACTION, WIZARD_NEXT) ); |
| 358 |
$this->_form->add( form_hidden(WIZARD_VISITED, 1) ); |
| 359 |
} |
| 360 |
|
| 361 |
|
| 362 |
/** |
| 363 |
* This builds the javascript needed for the |
| 364 |
* navigation of the wizard |
| 365 |
* |
| 366 |
* @return string |
| 367 |
*/ |
| 368 |
function _build_js() { |
| 369 |
$name = $this->_form_attributes["name"]; |
| 370 |
$js = " |
| 371 |
function wizard_cancel_confirm(butname, txt) { |
| 372 |
if (confirm(txt)){ |
| 373 |
document.$name.".WIZARD_ACTION.".value = butname; |
| 374 |
document.$name.submit(); |
| 375 |
} |
| 376 |
} |
| 377 |
function wizard_submit(txt) { |
| 378 |
document.$name.".WIZARD_ACTION.".value = txt; |
| 379 |
document.$name.submit(); |
| 380 |
} |
| 381 |
function wizard_submit2(txt, step) { |
| 382 |
document.$name.".WIZARD_ACTION.".value = txt; |
| 383 |
document.$name.".WIZARD_TO_STEP.".value = step; |
| 384 |
document.$name.submit(); |
| 385 |
}"; |
| 386 |
|
| 387 |
$script = html_script(); |
| 388 |
$script->add( $js ); |
| 389 |
return $script; |
| 390 |
} |
| 391 |
|
| 392 |
|
| 393 |
|
| 394 |
/** |
| 395 |
* This renders the toolbar/step table |
| 396 |
* for the navigation of the wizard |
| 397 |
*/ |
| 398 |
function _build_toolbar() { |
| 399 |
$current_step = $this->_current_step(); |
| 400 |
xxx("current step ".$current_step); |
| 401 |
if ($this->_vars["on_confirm"]) { |
| 402 |
$current_step++; |
| 403 |
$step_title = "Confirmation"; |
| 404 |
} else { |
| 405 |
$step_title = $this->_steps[$current_step - 1]["title"]; |
| 406 |
} |
| 407 |
|
| 408 |
$title = "Step ".$current_step." : ". $step_title; |
| 409 |
$table = new InfoTable($title, 500); |
| 410 |
|
| 411 |
//build the table of steps. |
| 412 |
$c = container(); |
| 413 |
$step_num = 1; |
| 414 |
foreach( $this->_steps as $step ) { |
| 415 |
$c->add( $this->_build_step_image( $step_num, $step["title"] ) ); |
| 416 |
|
| 417 |
if ($step_num != $this->_vars["num_steps"]) { |
| 418 |
$arrow = html_img("/phphtmllib/images/wizard/arrow.png"); |
| 419 |
$arrow->set_style("vertical-align:super"); |
| 420 |
$c->add( $arrow ); |
| 421 |
} |
| 422 |
|
| 423 |
$step_num++; |
| 424 |
} |
| 425 |
|
| 426 |
//add the confirmation step |
| 427 |
xxx($step_num); |
| 428 |
$c->add( $arrow ); |
| 429 |
$c->add( $this->_build_step_image( $step_num, "Confirmation" ) ); |
| 430 |
|
| 431 |
|
| 432 |
$tr = html_tr("", $c ); |
| 433 |
$tr->set_style("text-align: center"); |
| 434 |
$table->add_row( $tr ); |
| 435 |
|
| 436 |
//now show the description |
| 437 |
if ($this->_vars["on_confirm"] == true) { |
| 438 |
$desc = "Confirmation"; |
| 439 |
} else { |
| 440 |
$desc = $this->_steps[$current_step - 1]["desc"]; |
| 441 |
} |
| 442 |
$tr = html_tr("", $desc ); |
| 443 |
$tr->set_style("text-align: center"); |
| 444 |
$table->add_row( $tr ); |
| 445 |
|
| 446 |
//now add the controls |
| 447 |
$c = html_div(); |
| 448 |
$c->set_style("padding-top: 5px;"); |
| 449 |
|
| 450 |
if ($current_step != 1) { |
| 451 |
$link = html_a("javascript:wizard_submit2('".WIZARD_PREV."',".($current_step-1).");", |
| 452 |
html_img("/phphtmllib/images/wizard/previous_step.png")); |
| 453 |
$c->add( $link ); |
| 454 |
} |
| 455 |
|
| 456 |
if ($current_step == $this->_vars["num_steps"]+1) { |
| 457 |
$link = html_a("javascript:wizard_submit2('".WIZARD_FINAL."',".($current_step).");", |
| 458 |
html_img("/phphtmllib/images/wizard/finish_steps.png") ); |
| 459 |
|
| 460 |
$c->add( _HTML_SPACE, _HTML_SPACE, $link); |
| 461 |
} else { |
| 462 |
$link = html_a("javascript:wizard_submit2('".WIZARD_NEXT."',".($current_step+1).");", |
| 463 |
html_img("/phphtmllib/images/wizard/next_step.png") ); |
| 464 |
$c->add( $link ); |
| 465 |
} |
| 466 |
|
| 467 |
|
| 468 |
$tr = html_tr("", $c ); |
| 469 |
$tr->set_style("text-align: center;"); |
| 470 |
$table->add_row( $tr ); |
| 471 |
|
| 472 |
return $table; |
| 473 |
} |
| 474 |
|
| 475 |
|
| 476 |
/** |
| 477 |
* This function builds an image for a step # |
| 478 |
* |
| 479 |
* @param string - the step # to build |
| 480 |
* @return Atag object |
| 481 |
*/ |
| 482 |
function &_build_step_image( $step_num, $step_title ) { |
| 483 |
$title = "Step ".$step_num." "; |
| 484 |
|
| 485 |
$current_step = $this->_current_step(); |
| 486 |
//if ($this->_vars["on_confirm"]) { |
| 487 |
//$current_step++; |
| 488 |
//} |
| 489 |
|
| 490 |
if ($step_num == $current_step) { |
| 491 |
$title .= " (Current) : ".$step_title; |
| 492 |
$img = html_img("/phphtmllib/images/wizard/".$step_num."_red.png", 30, 30, 0, |
| 493 |
$title, NULL, $title); |
| 494 |
|
| 495 |
} else if ($this->_is_step_visited($step_num) || |
| 496 |
$current_step == $this->_vars["num_steps"]+1) { |
| 497 |
$title .= " (Completed) : ".$step_title; |
| 498 |
$img = html_img("/phphtmllib/images/wizard/".$step_num."_black.png", 30, 30 ,0, |
| 499 |
$title, NULL, $title); |
| 500 |
|
| 501 |
} else { |
| 502 |
$title .= " (Not Completed) : ".$step_title; |
| 503 |
$img = html_img("/phphtmllib/images/wizard/".$step_num."_gray.png", 30,30,0, |
| 504 |
$title, NULL, $title); |
| 505 |
} |
| 506 |
|
| 507 |
return $img; |
| 508 |
} |
| 509 |
|
| 510 |
|
| 511 |
|
| 512 |
/*****************************************/ |
| 513 |
/* SESSION RELATED METHODS */ |
| 514 |
/*****************************************/ |
| 515 |
|
| 516 |
/** |
| 517 |
* This method initializes the session |
| 518 |
* variable that we use |
| 519 |
* |
| 520 |
*/ |
| 521 |
function _init_session() { |
| 522 |
//create a unique id for this wizard |
| 523 |
//so we can have multple wizards |
| 524 |
//running per session. |
| 525 |
$_SESSION[$this->_vars[WIZARD_ID]] = array(); |
| 526 |
$_SESSION[$this->_vars[WIZARD_ID]]; |
| 527 |
$this->_set_current_step(1); |
| 528 |
|
| 529 |
//mark all steps as NOT visited |
| 530 |
for ($i=0; $i<=$this->_vars["num_steps"]-1; $i++) { |
| 531 |
$this->_step_visited($i, FALSE); |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
/** |
| 536 |
* This returns the current step id |
| 537 |
* from the session |
| 538 |
* |
| 539 |
*/ |
| 540 |
function _current_step() { |
| 541 |
return $_SESSION[$this->_vars[WIZARD_ID]]["current_step"]; |
| 542 |
} |
| 543 |
|
| 544 |
/** |
| 545 |
* This sets the current step id |
| 546 |
* |
| 547 |
* @param int - the new step # |
| 548 |
*/ |
| 549 |
function _set_current_step($step) { |
| 550 |
debug( "SET STEP ".$step); |
| 551 |
$_SESSION[$this->_vars[WIZARD_ID]]["current_step"] = $step; |
| 552 |
} |
| 553 |
|
| 554 |
|
| 555 |
/** |
| 556 |
* This sets the state variable for the |
| 557 |
* step to let us know it has been visited or not |
| 558 |
* |
| 559 |
* @param int - the step to mark |
| 560 |
* @param boolean - TRUE = visited |
| 561 |
*/ |
| 562 |
function _step_visited($step_num, $visited=TRUE) { |
| 563 |
$_SESSION[$this->_vars[WIZARD_ID]]["visited_steps"][$step_num] = $visited; |
| 564 |
} |
| 565 |
|
| 566 |
/** |
| 567 |
* This tests to see if the step has been visited or not. |
| 568 |
* |
| 569 |
* @param int - the step to mark |
| 570 |
* @return boolean - TRUE = visited |
| 571 |
*/ |
| 572 |
function _is_step_visited($step_num) { |
| 573 |
if (isset($_SESSION[$this->_vars[WIZARD_ID]]["visited_steps"][$step_num])) { |
| 574 |
return $_SESSION[$this->_vars[WIZARD_ID]]["visited_steps"][$step_num]; |
| 575 |
} else { |
| 576 |
return FALSE; |
| 577 |
} |
| 578 |
} |
| 579 |
|
| 580 |
/** |
| 581 |
* This function cleans up the saved Session state |
| 582 |
* for the wizard. This gets called when we have |
| 583 |
* completed the wizard w/o errors. |
| 584 |
* |
| 585 |
*/ |
| 586 |
function _clean() { |
| 587 |
unset($_SESSION[$this->_vars[WIZARD_ID]]); |
| 588 |
} |
| 589 |
|
| 590 |
/** |
| 591 |
* This ensures that we have sessions started |
| 592 |
* |
| 593 |
*/ |
| 594 |
function _session_test() { |
| 595 |
if (!session_id()) { |
| 596 |
//we have to have sessions started. |
| 597 |
session_start(); |
| 598 |
} |
| 599 |
} |
| 600 |
} |
| 601 |
?> |
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