Exemplo n.º 1
0
 /**
  * Prepopulate record fields according to rules in prepopulate.conf
  *
  * @param BundlableLabelableBaseModelWithAttributes $t_instance The table instance to prepopulate
  * @param array $pa_options Options array. Available options are:
  * 		prepopulateConfig = override path to prepopulate.conf, e.g. for testing purposes
  * @return bool success or not
  */
 public function prepopulateFields(&$t_instance, $pa_options = null)
 {
     if (!$t_instance->getPrimaryKey()) {
         return false;
     }
     if ($vs_prepopulate_cfg = caGetOption('prepopulateConfig', $pa_options, null)) {
         $this->opo_plugin_config = Configuration::load($vs_prepopulate_cfg);
     }
     if (!($this->opo_plugin_config->get('prepopulate_fields_on_save') || $this->opo_plugin_config->get('prepopulate_fields_on_load'))) {
         return false;
     }
     $va_rules = $this->opo_plugin_config->get('prepopulate_rules');
     if (!$va_rules || !is_array($va_rules) || sizeof($va_rules) < 1) {
         return false;
     }
     global $g_ui_locale_id;
     // we need to unset the form timestamp to disable the 'Changes have been made since you loaded this data' warning when we update() $this
     // the warning makes sense because an update()/insert() is called before we arrive here but after the form_timestamp ... but we chose to ignore it
     //$vn_timestamp = $_REQUEST['form_timestamp'];
     //unset($_REQUEST['form_timestamp']);
     $vb_we_set_transaction = true;
     if (!$t_instance->inTransaction()) {
         $t_instance->setTransaction(new Transaction($t_instance->getDb()));
         $vb_we_set_transaction = true;
     }
     // process rules
     $va_expression_vars = array();
     // we only process those if and when we need them
     foreach ($va_rules as $vs_rule_key => $va_rule) {
         if ($t_instance->tableName() != $va_rule['table']) {
             continue;
         }
         // check target
         $vs_target = $va_rule['target'];
         if (strlen($vs_target) < 1) {
             Debug::msg("[prepopulateFields()] skipping rule {$vs_rule_key} because target is not set");
             continue;
         }
         // check template
         $vs_template = $va_rule['template'];
         if (strlen($vs_template) < 1) {
             Debug::msg("[prepopulateFields()] skipping rule {$vs_rule_key} because template is not set");
             continue;
         }
         $vs_mode = caGetOption('mode', $va_rule, 'merge');
         // respect restrictToTypes option
         if ($va_rule['restrictToTypes'] && is_array($va_rule['restrictToTypes']) && sizeof($va_rule['restrictToTypes']) > 0) {
             if (!in_array($t_instance->getTypeCode(), $va_rule['restrictToTypes'])) {
                 Debug::msg("[prepopulateFields()] skipping rule {$vs_rule_key} because current record type " . $t_instance->getTypeCode() . " is not in restrictToTypes");
                 continue;
             }
         }
         // skip this rule if expression is true
         if ($va_rule['skipIfExpression'] && strlen($va_rule['skipIfExpression']) > 0) {
             $va_tags = caGetTemplateTags($va_rule['skipIfExpression']);
             foreach ($va_tags as $vs_tag) {
                 if (!isset($va_expression_vars[$vs_tag])) {
                     $va_expression_vars[$vs_tag] = $t_instance->get($vs_tag, array('returnIdno' => true, 'delimiter' => ';'));
                 }
             }
             if (ExpressionParser::evaluate($va_rule['skipIfExpression'], $va_expression_vars)) {
                 Debug::msg("[prepopulateFields()] skipping rule {$vs_rule_key} because skipIfExpression evaluated true");
                 continue;
             }
         }
         // evaluate template
         $vs_value = caProcessTemplateForIDs($vs_template, $t_instance->tableNum(), array($t_instance->getPrimaryKey()), array('path' => true));
         Debug::msg("[prepopulateFields()] processed template for rule {$vs_rule_key} value is: " . $vs_value);
         // inject into target
         $va_parts = explode('.', $vs_target);
         // intrinsic or simple (non-container) attribute
         if (sizeof($va_parts) == 2) {
             // intrinsic
             if ($t_instance->hasField($va_parts[1])) {
                 switch (strtolower($vs_mode)) {
                     case 'overwrite':
                         // always set
                         $t_instance->set($va_parts[1], $vs_value);
                         break;
                     case 'addifempty':
                     default:
                         if (!$t_instance->get($va_parts[1])) {
                             $t_instance->set($va_parts[1], $vs_value);
                         } else {
                             Debug::msg("[prepopulateFields()] rule {$vs_rule_key}: intrinsic skipped because it already has value and mode is addIfEmpty or merge");
                         }
                         break;
                 }
                 // attribute/element
             } elseif ($t_instance->hasElement($va_parts[1])) {
                 $va_attributes = $t_instance->getAttributesByElement($va_parts[1]);
                 if (sizeof($va_attributes) > 1) {
                     Debug::msg("[prepopulateFields()] containers with multiple values are not supported");
                     continue;
                 }
                 switch (strtolower($vs_mode)) {
                     case 'overwrite':
                         // always replace first value we find
                         $t_instance->replaceAttribute(array($va_parts[1] => $vs_value, 'locale_id' => $g_ui_locale_id), $va_parts[1]);
                         break;
                     default:
                     case 'addifempty':
                         // only add value if none exists
                         if (!$t_instance->get($vs_target)) {
                             $t_instance->replaceAttribute(array($va_parts[1] => $vs_value, 'locale_id' => $g_ui_locale_id), $va_parts[1]);
                         }
                         break;
                 }
             }
             // "container"
         } elseif (sizeof($va_parts) == 3) {
             // actual container
             if ($t_instance->hasElement($va_parts[1])) {
                 $va_attr = $t_instance->getAttributesByElement($va_parts[1]);
                 switch (sizeof($va_attr)) {
                     case 1:
                         switch (strtolower($vs_mode)) {
                             case 'overwrite':
                                 $vo_attr = array_pop($va_attr);
                                 $va_value = array($va_parts[2] => $vs_value);
                                 foreach ($vo_attr->getValues() as $o_val) {
                                     if ($o_val->getElementCode() != $va_parts[2]) {
                                         $va_value[$o_val->getElementCode()] = $o_val->getDisplayValue();
                                     }
                                 }
                                 $t_instance->_editAttribute($vo_attr->getAttributeID(), $va_value);
                                 break;
                             case 'addifempty':
                                 $vo_attr = array_pop($va_attr);
                                 $va_value = array($va_parts[2] => $vs_value);
                                 $vb_update = false;
                                 foreach ($vo_attr->getValues() as $o_val) {
                                     if ($o_val->getElementCode() != $va_parts[2]) {
                                         $va_value[$o_val->getElementCode()] = $o_val->getDisplayValue();
                                     } else {
                                         if (!$o_val->getDisplayValue()) {
                                             $vb_update = true;
                                         }
                                     }
                                 }
                                 if ($vb_update) {
                                     $t_instance->editAttribute($vo_attr->getAttributeID(), $va_parts[1], $va_value);
                                 }
                                 break;
                             default:
                                 Debug::msg("[prepopulateFields()] unsupported mode {$vs_mode} for target bundle");
                                 break;
                         }
                         break;
                     case 0:
                         // if no container value exists, always add it (ignoring mode)
                         $t_instance->addAttribute(array($va_parts[2] => $vs_value, 'locale_id' => $g_ui_locale_id), $va_parts[1]);
                         break;
                     default:
                         Debug::msg("[prepopulateFields()] containers with multiple values are not supported");
                         break;
                 }
                 // labels
             } elseif ($va_parts[1] == 'preferred_labels' || $va_parts[1] == 'nonpreferred_labels') {
                 $vb_preferred = $va_parts[1] == 'preferred_labels';
                 if (!($t_label = $t_instance->getAppDatamodel()->getInstanceByTableName($t_instance->getLabelTableName(), true))) {
                     continue;
                 }
                 if (!$t_label->hasField($va_parts[2])) {
                     continue;
                 }
                 switch ($t_instance->getLabelCount($vb_preferred)) {
                     case 0:
                         // if no value exists, always add it (ignoring mode)
                         $t_instance->addLabel(array($va_parts[2] => $vs_value), $g_ui_locale_id, null, $vb_preferred);
                         break;
                     case 1:
                         switch (strtolower($vs_mode)) {
                             case 'overwrite':
                             case 'addifempty':
                                 $va_labels = $t_instance->getLabels(null, $vb_preferred ? __CA_LABEL_TYPE_PREFERRED__ : __CA_LABEL_TYPE_NONPREFERRED__);
                                 if (sizeof($va_labels)) {
                                     $va_labels = caExtractValuesByUserLocale($va_labels);
                                     $va_label = array_shift($va_labels);
                                     $va_label = $va_label[0];
                                     $va_label[$va_parts[2]] = $vs_value;
                                     $vb_update = false;
                                     if (strtolower($vs_mode) == 'overwrite') {
                                         $va_label[$va_parts[2]] = $vs_value;
                                         $vb_update = true;
                                     } else {
                                         if (strlen(trim($va_label[$va_parts[2]])) == 0) {
                                             // in addifempty mode only edit label when field is not set
                                             $va_label[$va_parts[2]] = $vs_value;
                                             $vb_update = true;
                                         }
                                     }
                                     if ($vb_update) {
                                         $t_instance->editLabel($va_label['label_id'], $va_label, $g_ui_locale_id, null, $vb_preferred);
                                     }
                                 } else {
                                     $t_instance->addLabel(array($va_parts[2] => $vs_value), $g_ui_locale_id, null, $vb_preferred);
                                 }
                                 break;
                             default:
                                 Debug::msg("[prepopulateFields()] unsupported mode {$vs_mode} for target bundle");
                                 break;
                         }
                         break;
                     default:
                         Debug::msg("[prepopulateFields()] records with multiple labels are not supported");
                         break;
                 }
             }
         }
     }
     $vn_old_mode = $t_instance->getMode();
     $t_instance->setMode(ACCESS_WRITE);
     $t_instance->update();
     $t_instance->setMode($vn_old_mode);
     //$_REQUEST['form_timestamp'] = $vn_timestamp;
     if ($t_instance->numErrors() > 0) {
         foreach ($t_instance->getErrors() as $vs_error) {
             Debug::msg("[prepopulateFields()] there was an error while updating the record: " . $vs_error);
         }
         if ($vb_we_set_transaction) {
             $t_instance->removeTransaction(false);
         }
         return false;
     }
     if ($vb_we_set_transaction) {
         $t_instance->removeTransaction(true);
     }
     return true;
 }