1 | <?php |
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2 | |
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3 | /** |
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4 | * @file |
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5 | * Defines a nodereference widget for auto-creating nodes. The widget |
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6 | * auto-creates a node and then updates its title on change. |
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7 | */ |
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8 | |
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9 | /** |
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10 | * Implementation of hook_widget_info(). |
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11 | */ |
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12 | function nodereference_autocreate_widget_info() { |
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13 | return array( |
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14 | 'nodereference_autocreate' => array( |
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15 | 'label' => t('Auto-create node'), |
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16 | 'field types' => array('nodereference'), |
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17 | 'multiple values' => CONTENT_HANDLE_CORE, |
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18 | 'callbacks' => array( |
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19 | 'default value' => CONTENT_CALLBACK_DEFAULT, |
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20 | ), |
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21 | ), |
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22 | ); |
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23 | } |
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24 | |
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25 | /** |
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26 | * Implementation of hook_widget_settings(). |
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27 | */ |
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28 | function nodereference_autocreate_widget_settings($op, $widget) { |
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29 | switch ($op) { |
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30 | case 'form': |
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31 | $types = content_types(); |
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32 | $options_fields = array(); |
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33 | foreach($types as $content_name => $content_type) { |
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34 | $fields = $content_type['fields']; |
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35 | foreach ($fields as $name => $field) { |
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36 | //only allow field type text |
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37 | if ($field['type'] == 'text') { |
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38 | $options_fields[$field['field_name']] = strip_tags(t('Field %field in content type %content_type', array('%field' => check_plain(filter_xss($field['widget']['label'])), '%content_type' => check_plain(filter_xss($content_type['name']))))); |
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39 | } |
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40 | } |
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41 | $fields = $content_type['extra']; |
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42 | $exclude_fields = array( |
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43 | 'revision_information', |
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44 | 'author', |
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45 | 'options', |
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46 | 'comment_settings', |
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47 | 'menu', |
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48 | 'path', |
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49 | ); |
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50 | foreach ($fields as $name => $field) { |
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51 | if (!in_array($name, $exclude_fields)) { |
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52 | $options_fields[$content_type['type']. '_' . $name] = strip_tags(t('Field %field in content type %content_type', array('%field' => check_plain(filter_xss($field['label'])), '%content_type' => check_plain(filter_xss($content_type['name']))))); |
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53 | } |
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54 | } |
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55 | } |
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56 | $option = (isset($widget['nodereference_save_field_type']) && $options_fields[$widget['nodereference_save_field_type']]) ? $widget['nodereference_save_field_type'] : ''; |
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57 | $form = array(); |
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58 | |
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59 | $form['nodereference_save_field'] = array( |
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60 | '#type' => 'fieldset', |
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61 | '#title' => t('Auto-created node based in fields'), |
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62 | '#description' => t('Settings auto-created node based in fields.'), |
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63 | ); |
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64 | $form['nodereference_save_field']['nodereference_save_field_type'] = array( |
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65 | '#type' => 'select', |
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66 | '#title' => t('Save data in content field'), |
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67 | '#default_value' => $option, |
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68 | '#options' => $options_fields, |
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69 | '#required' => TRUE, |
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70 | ); |
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71 | $options = array( |
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72 | 'text_textfield' => 'textfield', |
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73 | 'text_textarea' => 'textarea', |
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74 | ); |
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75 | $option = (isset($widget['nodereference_field_type']) && $options[$widget['nodereference_field_type']]) ? $widget['nodereference_field_type'] : ''; |
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76 | $form['nodereference_save_field']['nodereference_field_type'] = array( |
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77 | '#type' => 'select', |
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78 | '#title' => t('Save data in content field'), |
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79 | '#default_value' => $option, |
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80 | '#options' => $options, |
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81 | '#required' => TRUE, |
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82 | ); |
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83 | $form['nodereference_save_field']['nodereference_title_default'] = array( |
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84 | '#title' => t('Title default'), |
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85 | '#type' => 'textfield', |
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86 | '#default_value' => isset($widget['nodereference_title_default']) ? $widget['nodereference_title_default'] : NULL, |
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87 | '#maxlength' => 255, |
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88 | ); |
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89 | $form['nodereference_save_field']['nodereference_title_delta'] = array( |
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90 | '#type' => 'checkbox', |
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91 | '#title' => t('Add delta in title'), |
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92 | '#default_value' => isset($widget['nodereference_title_delta']) ? $widget['nodereference_title_delta'] : NULL, |
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93 | '#return_value' => 1, |
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94 | ); |
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95 | return $form; |
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96 | break; |
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97 | case 'save': |
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98 | return array( |
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99 | 'nodereference_save_field_type', |
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100 | 'nodereference_field_type', |
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101 | 'nodereference_title_default', |
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102 | 'nodereference_title_delta', |
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103 | ); |
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104 | break; |
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105 | } |
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106 | } |
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107 | |
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108 | /** |
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109 | * Implementation of hook_widget(). |
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110 | */ |
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111 | function nodereference_autocreate_widget(&$form, &$form_state, $field, $items, $delta = 0) { |
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112 | switch ($field['widget']['type']) { |
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113 | case 'nodereference_autocreate': |
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114 | $element = array( |
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115 | '#type' => 'text_textfield', |
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116 | '#default_value' => isset($items[$delta]) ? $items[$delta] : NULL, |
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117 | '#value_callback' => 'nodereference_autocreate_value', |
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118 | '#process' => array('nodereference_autocreate_process'), |
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119 | ); |
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120 | $element['#type'] = $field['widget']['nodereference_field_type']; |
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121 | break; |
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122 | } |
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123 | return $element; |
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124 | } |
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125 | |
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126 | /** |
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127 | * Value for a nodereference auto-create element. |
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128 | * |
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129 | * Substitute in the node title for the node ID. |
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130 | */ |
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131 | function nodereference_autocreate_value($element, $edit = FALSE) { |
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132 | //get field data |
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133 | $field_name = $element['#field_name']; |
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134 | $type_name = $element['#type_name']; |
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135 | $field = content_fields($field_name, $type_name); |
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136 | $content_type = nodereference_autocreate_type_get($field['referenceable_types']); |
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137 | $type = content_types($content_type); |
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138 | $nodereference_save_field_type = $field['widget']['nodereference_save_field_type']; |
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139 | $pos = strpos($nodereference_save_field_type, $content_type); |
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140 | $field = $nodereference_save_field_type; |
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141 | if ($pos == 0) { |
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142 | $field = str_replace($content_type . '_', '', $nodereference_save_field_type); |
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143 | $field = str_replace('_field', '', $field); |
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144 | } |
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145 | |
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146 | $field_key = $element['#columns'][0]; |
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147 | if ($nid = $element['#default_value'][$field_key]) { |
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148 | if ($element['#nid'][$field_key]) { |
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149 | $nid = $element['#nid'][$field_key]; |
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150 | } |
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151 | $current_node = node_load($nid); |
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152 | $value = $current_node->{$field}; |
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153 | $current_value = $value; |
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154 | if (is_array($value)) { |
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155 | $current_value = $value[0]['value']; |
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156 | } |
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157 | else { |
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158 | $current_value = $value; |
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159 | } |
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160 | return array($field_key => $current_value); |
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161 | } |
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162 | return array($field_key => NULL); |
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163 | } |
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164 | |
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165 | /** |
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166 | * Process an individual element. |
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167 | * |
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168 | * @see nodereference_autocomplete_process() |
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169 | */ |
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170 | function nodereference_autocreate_process($element, $edit, $form_state, $form) { |
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171 | $field_key = $element['#columns'][0]; |
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172 | $element[$field_key] = array( |
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173 | '#type' => $element['#type'], |
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174 | '#default_value' => isset($element['#value']) ? $element['#value'] : '', |
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175 | // The following values were set by the content module and need to be |
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176 | // passed down to the nested element. |
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177 | '#title' => $element['#title'], |
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178 | '#required' => $element['#required'], |
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179 | '#description' => $element['#description'], |
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180 | '#field_name' => $element['#field_name'], |
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181 | '#type_name' => $element['#type_name'], |
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182 | '#delta' => $element['#delta'], |
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183 | '#columns' => $element['#columns'], |
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184 | '#nid' => 'casaloca', |
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185 | ); |
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186 | if (empty($element[$field_key]['#element_validate'])) { |
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187 | $element[$field_key]['#element_validate'] = array(); |
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188 | } |
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189 | array_unshift($element[$field_key]['#element_validate'], 'nodereference_autocreate_validate'); |
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190 | return $element; |
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191 | } |
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192 | |
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193 | /** |
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194 | * Validate an individual element. |
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195 | * |
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196 | * Create a node with the specified value on first save. Update title of |
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197 | * referenced node on each additional save. |
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198 | */ |
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199 | function nodereference_autocreate_validate($element, &$form_state) { |
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200 | $field_name = $element['#field_name']; |
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201 | $type_name = $element['#type_name']; |
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202 | $field = content_fields($field_name, $type_name); |
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203 | $field_key = $element['#columns'][0]; |
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204 | $delta = $element['#delta']; |
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205 | $value = $element['#value'][$field_key]; |
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206 | $nid = NULL; |
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207 | if ($value) { |
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208 | // Load the current value stored in the database. |
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209 | $self_nid = $form_state['values']['nid']; |
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210 | //get nid if lost(case editablefields) |
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211 | if(!$self_nid && $form_state['node']->nid) { |
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212 | $self_nid = $form_state['node']->nid; |
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213 | } |
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214 | $self = node_load($self_nid); |
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215 | $current_nid = $self->$field_name; |
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216 | $current_nid = $current_nid[$delta]['nid']; |
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217 | $default_title = 'node'; |
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218 | if (trim($field['widget']['nodereference_title_default'])) { |
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219 | $default_title = $field['widget']['nodereference_title_default']; |
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220 | } |
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221 | if ($field['widget']['nodereference_title_delta']) { |
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222 | $count = $delta + 1; |
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223 | $default_title .= $count; |
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224 | } |
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225 | $default_title = check_plain($default_title); |
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226 | $nodereference_save_field_type = $field['widget']['nodereference_save_field_type']; |
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227 | $content_type = nodereference_autocreate_type_get($field['referenceable_types']); |
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228 | $pos = strpos($nodereference_save_field_type, $content_type); |
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229 | $replace_field = $nodereference_save_field_type; |
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230 | $extra_field = FALSE; |
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231 | if ($pos == 0) { |
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232 | $replace_field = str_replace($content_type . '_', '', $nodereference_save_field_type); |
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233 | $replace_field = str_replace('_field', '', $replace_field); |
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234 | $extra_node->$replace_field = $value; |
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235 | } |
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236 | else { |
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237 | $extra_node->$replace_field[0]['value'] = $value; |
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238 | } |
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239 | if ($current_nid) { |
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240 | // Referenced node exists, update its title if changed. |
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241 | $referenced_node = node_load($current_nid); |
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242 | if ($referenced_node->{$replace_field} != $extra_node->{$replace_field} || $referenced_node->title != $default_title) { |
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243 | $referenced_node->title = $default_title; |
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244 | $referenced_node->$replace_field = $extra_node->$replace_field; |
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245 | node_save($referenced_node); |
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246 | } |
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247 | $nid = $referenced_node->nid; |
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248 | } |
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249 | else { |
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250 | // Create a new node with the specified title. |
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251 | global $user; |
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252 | $node = new stdClass(); |
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253 | $node->type = nodereference_autocreate_type_get($field['referenceable_types']); |
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254 | $node->title = $default_title; |
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255 | $node->uid = $user->uid; |
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256 | $node->{$replace_field} = $extra_node->{$replace_field}; |
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257 | node_save($node); |
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258 | if (!$node->nid) { |
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259 | form_error($element[$field_key], t('%name: failed to create sub node.', array('%name' => t($field['widget']['label'])))); |
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260 | } |
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261 | else { |
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262 | $nid = $node->nid; |
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263 | } |
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264 | } |
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265 | } |
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266 | form_set_value($element, $nid, $form_state); |
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267 | } |
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268 | |
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269 | /** |
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270 | * Implementation of hook_form_FORM_ID_alter(): content_field_edit_form. |
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271 | */ |
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272 | function nodereference_autocreate_form_content_field_edit_form_alter(&$form, $form_state) { |
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273 | if ($form['#field']['widget']['type'] == 'nodereference_autocreate') { |
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274 | $form['field']['referenceable_types']['#description'] .= t('Only one type can be referenced when using the ' . |
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275 | 'auto-create node widget. The node type referenced will be used when creating a node.'); |
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276 | $form['#validate'][] = 'nodereference_autocreate_content_field_edit_form_validate'; |
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277 | } |
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278 | } |
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279 | |
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280 | /** |
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281 | * Validate nodereference setting form. |
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282 | * |
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283 | * If widget type is nodereference_autocreate then check for multiple selected |
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284 | * referenceable types. |
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285 | */ |
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286 | function nodereference_autocreate_content_field_edit_form_validate($form, &$form_state) { |
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287 | if ($form_state['values']['widget_type'] == 'nodereference_autocreate') { |
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288 | $count = 0; |
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289 | if ($form_state['values']['referenceable_types']) { |
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290 | foreach ($form_state['values']['referenceable_types'] as $type => $enabled) { |
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291 | if ($enabled) { |
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292 | $count++; |
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293 | } |
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294 | } |
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295 | if ($count > 1) { |
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296 | form_set_error('referenceable_types', t('Only one content type can be referenced for widgets of type <em>Auto-create node</em>.')); |
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297 | } |
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298 | } |
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299 | } |
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300 | } |
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301 | |
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302 | /** |
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303 | * Get the referenced type. |
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304 | * |
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305 | * @param $referenceable_types |
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306 | * Referenceable types from field form. |
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307 | * @return |
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308 | * Referenced type. |
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309 | */ |
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310 | function nodereference_autocreate_type_get(array $referenceable_types) { |
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311 | foreach ($referenceable_types as $type => $enabled) { |
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312 | if ($enabled) { |
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313 | return $type; |
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314 | } |
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315 | } |
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316 | return NULL; |
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317 | } |
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