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1 | <?php |
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2 | |||
3 | /** |
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4 | * @package elemental |
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5 | */ |
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6 | class ElementPageExtension extends DataExtension |
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7 | { |
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8 | |||
9 | /** |
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10 | * @config |
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11 | * |
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12 | * @var string $elements_title Title of the element in the CMS. |
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13 | */ |
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14 | private static $elements_title = 'Content Blocks'; |
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15 | |||
16 | /** |
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17 | * @config |
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18 | * |
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19 | * @var array $ignored_classes Classes to ignore adding elements too. |
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20 | */ |
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21 | private static $ignored_classes = array(); |
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22 | |||
23 | /** |
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24 | * @var array $db |
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25 | */ |
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26 | private static $db = array(); |
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27 | |||
28 | /** |
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29 | * @var array $has_one |
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30 | */ |
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31 | private static $has_one = array( |
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32 | 'ElementArea' => 'ElementalArea' |
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33 | ); |
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34 | |||
35 | /** |
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36 | * Setup the CMS Fields |
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37 | * |
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38 | * @param FieldList |
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39 | */ |
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40 | public function updateCMSFields(FieldList $fields) |
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41 | { |
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42 | if(!$this->supportsElemental()) { |
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43 | return false; |
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44 | } |
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45 | |||
46 | // add an empty holder for content as some module explicitly use insert |
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47 | // after content. |
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48 | $fields->replaceField('Content', new LiteralField('Content', '')); |
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49 | |||
50 | $adder = new ElementalGridFieldAddNewMultiClass(); |
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51 | |||
52 | $list = $this->getAvailableTypes(); |
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53 | $adder->setClasses($list); |
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54 | |||
55 | $area = $this->owner->ElementArea(); |
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56 | |||
57 | if (!$area->exists() || !$area->isInDB()) { |
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58 | $area->write(); |
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59 | |||
60 | $this->owner->ElementAreaID = $area->ID; |
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61 | $this->owner->write(); |
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62 | } |
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63 | |||
64 | $gridField = GridField::create('ElementArea', |
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65 | Config::inst()->get("ElementPageExtension", 'elements_title'), |
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66 | $this->owner->ElementArea()->Elements(), |
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67 | GridFieldConfig_RelationEditor::create() |
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68 | ->removeComponentsByType('GridFieldAddNewButton') |
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69 | ->removeComponentsByType('GridFieldDeleteAction') |
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70 | ->removeComponentsByType('GridFieldAddExistingAutocompleter') |
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71 | ->addComponent(new ElementalGridFieldAddExistingAutocompleter()) |
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72 | ->addComponent(new ElementalGridFieldDeleteAction()) |
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73 | ->addComponent($adder) |
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74 | ->addComponent(new GridFieldSortableRows('Sort')) |
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75 | ); |
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76 | |||
77 | $config = $gridField->getConfig(); |
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78 | $paginator = $config->getComponentByType('GridFieldPaginator'); |
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79 | $paginator->setItemsPerPage(100); |
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80 | |||
81 | $config->removeComponentsByType('GridFieldDetailForm'); |
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82 | $config->addComponent(new VersionedDataObjectDetailsForm()); |
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83 | |||
84 | $fields->addFieldToTab('Root.Main', $gridField, 'Metadata'); |
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85 | |||
86 | return $fields; |
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87 | } |
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88 | |||
89 | /** |
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90 | * @return array |
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91 | */ |
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92 | public function getAvailableTypes() { |
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93 | if (is_array($this->owner->config()->get('allowed_elements'))) { |
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94 | $list = $this->owner->config()->get('allowed_elements'); |
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95 | View Code Duplication | } else { |
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96 | $classes = ClassInfo::subclassesFor('BaseElement'); |
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97 | $list = array(); |
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98 | unset($classes['BaseElement']); |
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99 | |||
100 | foreach ($classes as $class) { |
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101 | $inst = singleton($class); |
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102 | |||
103 | if ($inst->canCreate()) { |
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104 | $list[$class] = singleton($class)->i18n_singular_name(); |
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105 | } |
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106 | } |
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107 | } |
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108 | if (method_exists($this->owner, 'sortElementalOptions')) { |
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109 | $this->owner->sortElementalOptions($list); |
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110 | } else { |
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111 | asort($list); |
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112 | } |
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113 | |||
114 | return $list; |
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115 | } |
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116 | |||
117 | /** |
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118 | * Make sure there is always a WidgetArea sidebar for adding widgets |
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119 | * |
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120 | */ |
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121 | public function onBeforeWrite() |
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122 | { |
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123 | // enable theme in case elements are being rendered with templates stored in theme folder |
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124 | $originalThemeEnabled = Config::inst()->get('SSViewer', 'theme_enabled'); |
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125 | Config::inst()->update('SSViewer', 'theme_enabled', true); |
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126 | |||
127 | if(!$this->supportsElemental()) { |
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128 | return; |
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129 | } |
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130 | |||
131 | if ($this->owner->hasMethod('ElementArea')) { |
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132 | $elements = $this->owner->ElementArea(); |
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133 | |||
134 | if (!$elements->isInDB()) { |
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135 | $elements->write(); |
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136 | $this->owner->ElementAreaID = $elements->ID; |
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137 | } else { |
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138 | // Copy widgets content to Content to enable search |
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139 | $searchableContent = array(); |
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140 | |||
141 | foreach ($elements->Elements() as $element) { |
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142 | if ($element->config()->exclude_from_content) { |
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143 | continue; |
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144 | } |
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145 | |||
146 | $controller = $element->getController(); |
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147 | |||
148 | foreach ($elements->Items() as $element) { |
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149 | $controller->init(); |
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150 | |||
151 | array_push($searchableContent, $controller->WidgetHolder()); |
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152 | } |
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153 | } |
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154 | |||
155 | $this->owner->Content = trim(implode(' ', $searchableContent)); |
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156 | } |
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157 | } |
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158 | |||
159 | |||
160 | // set theme_enabled back to what it was |
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161 | Config::inst()->update('SSViewer', 'theme_enabled', $originalThemeEnabled); |
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162 | |||
163 | parent::onBeforeWrite(); |
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164 | } |
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165 | |||
166 | /** |
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167 | * @return boolean |
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168 | */ |
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169 | public function supportsElemental() { |
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170 | if (is_a($this->owner, 'RedirectorPage')) { |
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171 | return false; |
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172 | } else if ($ignored = Config::inst()->get('ElementPageExtension', 'ignored_classes')) { |
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173 | foreach ($ignored as $check) { |
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The expression
$ignored of type array|integer|double|string|boolean is not guaranteed to be traversable. How about adding an additional type check?
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174 | if (is_a($this->owner, $check)) { |
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175 | return false; |
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176 | } |
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177 | } |
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178 | } |
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179 | |||
180 | return true; |
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181 | } |
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182 | |||
183 | /** |
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184 | * If the page is duplicated, copy the widgets across too. |
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185 | * |
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186 | * Gets called twice from either direction, due to bad DataObject and SiteTree code, hence the weird if statement |
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187 | * |
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188 | * @return Page The duplicated page |
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189 | */ |
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190 | public function onAfterDuplicate($duplicatePage) |
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191 | { |
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192 | if ($this->owner->ID != 0 && $this->owner->ID < $duplicatePage->ID) { |
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193 | $originalWidgetArea = $this->owner->getComponent('ElementArea'); |
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194 | $duplicateWidgetArea = $originalWidgetArea->duplicate(false); |
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195 | $duplicateWidgetArea->write(); |
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196 | $duplicatePage->ElementAreaID = $duplicateWidgetArea->ID; |
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197 | $duplicatePage->write(); |
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198 | |||
199 | View Code Duplication | foreach ($originalWidgetArea->Items() as $originalWidget) { |
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200 | $duplicateWidget = $originalWidget->duplicate(true); |
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201 | |||
202 | // manually set the ParentID of each widget, so we don't get versioning issues |
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203 | DB::query(sprintf("UPDATE Widget SET ParentID = %d WHERE ID = %d", $duplicateWidgetArea->ID, $duplicateWidget->ID)); |
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204 | } |
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205 | } |
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206 | } |
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207 | |||
208 | /** |
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209 | * If the page is duplicated across subsites, copy the widgets across too. |
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210 | * |
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211 | * @return Page The duplicated page |
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212 | */ |
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213 | public function onAfterDuplicateToSubsite($originalPage) |
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214 | { |
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215 | $originalWidgetArea = $originalPage->getComponent('ElementArea'); |
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216 | $duplicateWidgetArea = $originalWidgetArea->duplicate(false); |
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217 | $duplicateWidgetArea->write(); |
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218 | $this->owner->ElementAreaID = $duplicateWidgetArea->ID; |
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219 | $this->owner->write(); |
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220 | |||
221 | View Code Duplication | foreach ($originalWidgetArea->Items() as $originalWidget) { |
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222 | $duplicateWidget = $originalWidget->duplicate(true); |
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223 | |||
224 | // manually set the ParentID of each widget, so we don't get versioning issues |
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225 | DB::query(sprintf("UPDATE Widget SET ParentID = %d WHERE ID = %d", $duplicateWidgetArea->ID, $duplicateWidget->ID)); |
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226 | } |
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227 | } |
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228 | |||
229 | /** |
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230 | * Publish |
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231 | */ |
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232 | public function onAfterPublish() |
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233 | { |
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234 | if ($id = $this->owner->ElementAreaID) { |
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235 | $widgets = Versioned::get_by_stage('BaseElement', 'Stage', "ParentID = '$id'"); |
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236 | $staged = array(); |
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237 | |||
238 | foreach ($widgets as $widget) { |
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239 | $staged[] = $widget->ID; |
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240 | |||
241 | $widget->publish('Stage', 'Live'); |
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242 | } |
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243 | |||
244 | // remove any elements that are on live but not in draft. |
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245 | $widgets = Versioned::get_by_stage('BaseElement', 'Live', "ParentID = '$id'"); |
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246 | |||
247 | foreach ($widgets as $widget) { |
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248 | if (!in_array($widget->ID, $staged)) { |
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249 | $widget->deleteFromStage('Live'); |
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250 | } |
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251 | } |
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252 | } |
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253 | } |
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254 | |||
255 | /** |
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256 | * Roll back all changes if the parent page has a rollback event |
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257 | * |
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258 | * Only do rollback if it's the 'cancel draft changes' rollback, not a specific version |
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259 | * rollback. |
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260 | * |
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261 | * @param string $version |
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262 | * @return null |
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263 | */ |
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264 | public function onBeforeRollback($version) |
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265 | { |
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266 | if ($version !== 'Live') { |
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267 | // we don't yet have a smart way of rolling back to a specific version |
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268 | return; |
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269 | } |
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270 | if ($id = $this->owner->ElementAreaID) { |
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271 | $widgets = Versioned::get_by_stage('BaseElement', 'Live', "ParentID = '$id'"); |
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272 | $staged = array(); |
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273 | |||
274 | foreach ($widgets as $widget) { |
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275 | $staged[] = $widget->ID; |
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276 | |||
277 | $widget->invokeWithExtensions('onBeforeRollback', $widget); |
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278 | |||
279 | $widget->publish("Live", "Stage", false); |
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280 | |||
281 | $widget->invokeWithExtensions('onAfterRollback', $widget); |
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282 | } |
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283 | } |
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284 | } |
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285 | } |
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286 |
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.