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<?php
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/**
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* Views' relationship handlers.
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*/
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class webform_handler_relationship_submission_data extends views_handler_relationship {
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['webform_nid'] = array('default' => NULL);
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$options['webform_cid'] = array('default' => NULL);
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$options['webform_form_key'] = array('default' => NULL);
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$options['webform_join_by'] = array('default' => 'nid_cid');
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return $options;
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}
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/**
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* {@inheritdoc}
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*/
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public function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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form_load_include($form_state, 'inc', 'webform', 'views/webform.views');
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$nid = (int) $this->options['webform_nid'];
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$cid = (int) $this->options['webform_cid'];
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// Helper function provides webform_nid and webform_cid options.
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_webform_views_options_form($form, $form_state, $nid, $cid);
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$form['webform_join_by'] = array(
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'#type' => 'select',
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'#title' => t('Relate using'),
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'#default_value' => $this->options['webform_join_by'],
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'#options' => array(
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'nid_cid' => t('Node and Component ID'),
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'cid' => t('Component ID'),
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'form_key' => t('Component Form Key'),
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),
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'#description' => t('Choose <em>Node and Component ID</em> when this view will display data from only this webform.</br>Choose <em>Component ID</em> when this view will display data from other webforms and where the Component ID is identical.</br>Choose <em>Component Form Key</em> when this view will display data from other webforms with varying Component IDs.'),
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);
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}
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/**
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* {@inheritdoc}
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*/
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public function options_validate(&$form, &$form_state) {
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parent::options_validate($form, $form_state);
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_webform_views_options_validate($form, $form_state);
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}
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/**
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* {@inheritdoc}
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*/
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public function options_submit(&$form, &$form_state) {
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parent::options_submit($form, $form_state);
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_webform_views_options_submit($form, $form_state);
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$options =& $form_state['values']['options'];
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$options['webform_form_key'] = $options['webform_join_by'] == 'form_key' && ($node = node_load($options['webform_nid']))
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? $node->webform['components'][$options['webform_cid']]['form_key']
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: NULL;
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// Drop PHP reference.
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unset($options);
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}
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/**
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* Called to implement a relationship in a query.
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*
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* It respects the given component ids, provided via options form.
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*/
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public function query() {
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// When defining extra clauses, the 'table' key can be used to specify the
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// alias of another table. If NULL is specified, then the field is not
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// qualified with a table. Therefore, do NOT specify "'table' => NULL".
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switch ($this->options['webform_join_by']) {
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case 'form_key':
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$form_key = $this->options['webform_form_key'];
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$join_type = $this->options['required'] ? 'INNER' : 'LEFT';
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$this->ensure_my_table();
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$join = new views_join();
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$join->construct(
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// The table to be joined.
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'webform_component',
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// The left table (i.e. this table, webform_submission).
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$this->table,
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// The left field (i.e. the webform node id).
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'nid',
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// The field (i.e. webform_components.nid).
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'nid',
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// Extra array of additional conditions.
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array(
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array(
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// Extra join of form_key.
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'field' => 'form_key',
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// ... = $form_key (operator '=' is default)
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'value' => $form_key,
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),
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),
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// Join type is the same as this relationship's join type.
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$join_type);
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$alias = $this->query->add_relationship(
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// Requested alias for new reliationship.
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'webform_component_' . $form_key,
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// Addition join to be added to this relatinship.
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$join,
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// Base table (i.e. drivingevals_submission)
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$this->table_alias,
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// Add the view to this relationship.
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$this->relationship);
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// The actual alias for this relationship's join is not known yet. Becasue
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// of name conflicts, it may have a number appended to the end. %alias is
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// substitued when the query is build with the actual alias name.
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$this->definition['extra'][] = "%alias.cid = {$alias}.cid";
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break;
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case 'nid_cid':
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$this->definition['extra'][] = array(
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'field' => "nid",
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'value' => $this->options['webform_nid'],
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);
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// FALL THROUGH.
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case 'cid':
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$this->definition['extra'][] = array(
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'field' => "cid",
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'value' => $this->options['webform_cid'],
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);
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break;
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}
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// The rest of building the join is performed by the parent.
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parent::query();
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}
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}
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