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<?php
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/**
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* @file
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* Plugin to provide an relationship handler for entities from query string.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t('Entity from query string'),
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'keyword' => 'query_string_entity',
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'description' => t('Entity from query string.'),
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'required context' => new ctools_context_required(t('Query string'), 'query_string'),
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'context' => 'ctools_entity_from_query_string_context',
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'edit form' => 'ctools_entity_from_query_string_settings_form',
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);
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/**
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* Return a new context based on an existing context.
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*/
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function ctools_entity_from_query_string_context($context, $conf) {
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$entity_type = $conf['entity_type'];
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// If unset it wants a generic, unfilled context, which is just NULL.
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if (empty($context->data) || !isset($context->data) || !is_numeric($context->data)) {
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return ctools_context_create_empty('entity:' . $entity_type, NULL);
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}
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if (!empty($context->data) && is_numeric($context->data)) {
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// Load the entity from the query string value.
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$entity_id = $context->data;
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$entity = entity_load_single($entity_type, $entity_id);
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// Send it to ctools.
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return ctools_context_create('entity:' . $entity_type, $entity);
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}
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}
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/**
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* Settings form for the relationship.
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*/
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function ctools_entity_from_query_string_settings_form($form, &$form_state) {
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// Get all avalible enity types.
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foreach (entity_get_info() as $key => $value) {
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$entity_types[$key] = $value['label'];
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}
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$form['entity_type'] = array(
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'#title' => t('Entity type'),
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'#description' => t('Choose entity type to load from query value'),
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'#type' => 'select',
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'#options' => $entity_types,
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);
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if (isset($form_state['conf']['entity_type'])) {
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$form['entity_type']['#default_value'] = $form_state['conf']['entity_type'];
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}
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return $form;
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}
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/**
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* Submit handler; settings form for the context.
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*/
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function ctools_entity_from_query_string_settings_form_submit($form, &$form_state) {
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$form_state['conf']['entity_type'] = $form_state['values']['entity_type'];
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}
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