Laravel-Backpack /
CRUD
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| Total Complexity | 54 |
| Total Lines | 474 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 1 |
Complex classes like CrudPanel often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use CrudPanel, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 37 | class CrudPanel |
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| 38 | { |
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| 39 | // load all the default CrudPanel features |
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| 40 | use Create, Read, Search, Update, Delete, Errors, Reorder, Access, Columns, Fields, Query, Buttons, AutoSet, FakeFields, FakeColumns, AutoFocus, Filters, Tabs, Views, Validation, HeadingsAndTitles, Operations, SaveActions, Settings, Relationships; |
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| 41 | // allow developers to add their own closures to this object |
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| 42 | use Macroable; |
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| 43 | |||
| 44 | // -------------- |
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| 45 | // CRUD variables |
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| 46 | // -------------- |
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| 47 | // These variables are passed to the CRUD views, inside the $crud variable. |
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| 48 | // All variables are public, so they can be modified from your EntityCrudController. |
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| 49 | // All functions and methods are also public, so they can be used in your EntityCrudController to modify these variables. |
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| 50 | |||
| 51 | public $model = "\App\Models\Entity"; // what's the namespace for your entity's model |
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| 52 | public $route; // what route have you defined for your entity? used for links. |
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| 53 | public $entity_name = 'entry'; // what name will show up on the buttons, in singural (ex: Add entity) |
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| 54 | public $entity_name_plural = 'entries'; // what name will show up on the buttons, in plural (ex: Delete 5 entities) |
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| 55 | |||
| 56 | public $entry; |
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| 57 | |||
| 58 | protected $request; |
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| 59 | |||
| 60 | private $enableApproachFormRequest; |
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| 61 | // The following methods are used in CrudController or your EntityCrudController to manipulate the variables above. |
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| 62 | |||
| 63 | public function __construct() |
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| 64 | { |
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| 65 | $this->setRequest(); |
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| 66 | |||
| 67 | if ($this->getCurrentOperation()) { |
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| 68 | $this->setOperation($this->getCurrentOperation()); |
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| 69 | } |
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| 70 | } |
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| 71 | |||
| 72 | /** |
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| 73 | * Set the request instance for this CRUD. |
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| 74 | * |
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| 75 | * @param \Illuminate\Http\Request $request |
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| 76 | */ |
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| 77 | public function setRequest($request = null) |
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| 78 | { |
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| 79 | $this->request = $request ?? \Request::instance(); |
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| 80 | } |
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| 81 | |||
| 82 | /** |
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| 83 | * [getRequest description]. |
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| 84 | * @return [type] [description] |
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| 85 | */ |
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| 86 | public function getRequest() |
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| 87 | { |
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| 88 | return $this->request; |
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| 89 | } |
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| 90 | |||
| 91 | // ------------------------------------------------------ |
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| 92 | // BASICS - model, route, entity_name, entity_name_plural |
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| 93 | // ------------------------------------------------------ |
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| 94 | |||
| 95 | /** |
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| 96 | * This function binds the CRUD to its corresponding Model (which extends Eloquent). |
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| 97 | * All Create-Read-Update-Delete operations are done using that Eloquent Collection. |
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| 98 | * |
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| 99 | * @param string $model_namespace Full model namespace. Ex: App\Models\Article |
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| 100 | * |
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| 101 | * @throws \Exception in case the model does not exist |
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| 102 | */ |
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| 103 | public function setModel($model_namespace) |
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| 104 | { |
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| 105 | if (! class_exists($model_namespace)) { |
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| 106 | throw new \Exception('The model does not exist.', 500); |
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| 107 | } |
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| 108 | |||
| 109 | if (! method_exists($model_namespace, 'hasCrudTrait')) { |
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| 110 | throw new \Exception('Please use CrudTrait on the model.', 500); |
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| 111 | } |
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| 112 | |||
| 113 | $this->model = new $model_namespace(); |
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| 114 | $this->query = $this->model->select('*'); |
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| 115 | $this->entry = null; |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Get the corresponding Eloquent Model for the CrudController, as defined with the setModel() function. |
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| 120 | * |
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| 121 | * @return string|\Illuminate\Database\Eloquent\Model |
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| 122 | */ |
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| 123 | public function getModel() |
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| 124 | { |
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| 125 | return $this->model; |
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| 126 | } |
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| 127 | |||
| 128 | /** |
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| 129 | * Get the database connection, as specified in the .env file or overwritten by the property on the model. |
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| 130 | * |
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| 131 | * @return \Illuminate\Database\Schema\Builder |
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| 132 | */ |
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| 133 | private function getSchema() |
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| 134 | { |
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| 135 | return $this->getModel()->getConnection()->getSchemaBuilder(); |
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| 136 | } |
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| 137 | |||
| 138 | /** |
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| 139 | * Check if the database connection driver is using mongodb. |
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| 140 | * |
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| 141 | * DEPRECATION NOTICE: This method is no longer used and will be removed in future versions of Backpack |
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| 142 | * |
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| 143 | * @deprecated |
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| 144 | * @return bool |
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| 145 | */ |
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| 146 | private function driverIsMongoDb() |
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| 147 | { |
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| 148 | return $this->getSchema()->getConnection()->getConfig()['driver'] === 'mongodb'; |
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| 149 | } |
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| 150 | |||
| 151 | /** |
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| 152 | * Check if the database connection is any sql driver. |
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| 153 | * |
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| 154 | * @return bool |
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| 155 | */ |
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| 156 | private function driverIsSql() |
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| 157 | { |
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| 158 | $driver = $this->getSchema()->getConnection()->getConfig('driver'); |
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| 159 | |||
| 160 | return in_array($driver, $this->getSqlDriverList()); |
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| 161 | } |
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| 162 | |||
| 163 | /** |
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| 164 | * Get SQL driver list. |
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| 165 | * |
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| 166 | * @return array |
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| 167 | */ |
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| 168 | public function getSqlDriverList() |
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| 169 | { |
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| 170 | return ['mysql', 'sqlsrv', 'sqlite', 'pgsql']; |
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| 171 | } |
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| 172 | |||
| 173 | /** |
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| 174 | * Set the route for this CRUD. |
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| 175 | * Ex: admin/article. |
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| 176 | * |
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| 177 | * @param string $route Route name. |
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| 178 | */ |
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| 179 | public function setRoute($route) |
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| 180 | { |
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| 181 | $this->route = $route; |
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| 182 | } |
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| 183 | |||
| 184 | /** |
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| 185 | * Set the route for this CRUD using the route name. |
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| 186 | * Ex: admin.article. |
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| 187 | * |
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| 188 | * @param string $route Route name. |
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| 189 | * @param array $parameters Parameters. |
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| 190 | * |
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| 191 | * @throws \Exception |
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| 192 | */ |
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| 193 | public function setRouteName($route, $parameters = []) |
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| 194 | { |
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| 195 | $complete_route = $route.'.index'; |
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| 196 | |||
| 197 | if (! \Route::has($complete_route)) { |
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| 198 | throw new \Exception('There are no routes for this route name.', 404); |
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| 199 | } |
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| 200 | |||
| 201 | $this->route = route($complete_route, $parameters); |
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| 202 | } |
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| 203 | |||
| 204 | /** |
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| 205 | * Get the current CrudController route. |
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| 206 | * |
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| 207 | * Can be defined in the CrudController with: |
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| 208 | * - $this->crud->setRoute(config('backpack.base.route_prefix').'/article') |
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| 209 | * - $this->crud->setRouteName(config('backpack.base.route_prefix').'.article') |
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| 210 | * - $this->crud->route = config('backpack.base.route_prefix')."/article" |
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| 211 | * |
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| 212 | * @return string |
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| 213 | */ |
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| 214 | public function getRoute() |
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| 215 | { |
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| 216 | return $this->route; |
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| 217 | } |
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| 218 | |||
| 219 | /** |
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| 220 | * Set the entity name in singular and plural. |
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| 221 | * Used all over the CRUD interface (header, add button, reorder button, breadcrumbs). |
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| 222 | * |
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| 223 | * @param string $singular Entity name, in singular. Ex: article |
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| 224 | * @param string $plural Entity name, in plural. Ex: articles |
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| 225 | */ |
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| 226 | public function setEntityNameStrings($singular, $plural) |
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| 227 | { |
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| 228 | $this->entity_name = $singular; |
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| 229 | $this->entity_name_plural = $plural; |
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| 230 | } |
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| 231 | |||
| 232 | // ----------------------------------------------- |
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| 233 | // ACTIONS - the current operation being processed |
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| 234 | // ----------------------------------------------- |
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| 235 | |||
| 236 | /** |
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| 237 | * Get the action being performed by the controller, |
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| 238 | * including middleware names, route name, method name, |
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| 239 | * namespace, prefix, etc. |
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| 240 | * |
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| 241 | * @return string The EntityCrudController route action array. |
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| 242 | */ |
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| 243 | public function getAction() |
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| 244 | { |
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| 245 | return $this->getRequest()->route()->getAction(); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Get the full name of the controller method |
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| 250 | * currently being called (including namespace). |
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| 251 | * |
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| 252 | * @return string The EntityCrudController full method name with namespace. |
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| 253 | */ |
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| 254 | public function getActionName() |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * Get the name of the controller method |
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| 261 | * currently being called. |
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| 262 | * |
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| 263 | * @return string The EntityCrudController method name. |
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| 264 | */ |
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| 265 | public function getActionMethod() |
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| 266 | { |
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| 267 | return $this->getRequest()->route()->getActionMethod(); |
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| 268 | } |
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| 269 | |||
| 270 | /** |
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| 271 | * Check if the controller method being called |
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| 272 | * matches a given string. |
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| 273 | * |
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| 274 | * @param string $methodName Name of the method (ex: index, create, update) |
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| 275 | * |
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| 276 | * @return bool Whether the condition is met or not. |
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| 277 | */ |
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| 278 | public function actionIs($methodName) |
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| 279 | { |
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| 280 | return $methodName === $this->getActionMethod(); |
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| 281 | } |
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| 282 | |||
| 283 | // ---------------------------------- |
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| 284 | // Miscellaneous functions or methods |
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| 285 | // ---------------------------------- |
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| 286 | |||
| 287 | /** |
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| 288 | * Return the first element in an array that has the given 'type' attribute. |
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| 289 | * |
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| 290 | * @param string $type |
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| 291 | * @param array $array |
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| 292 | * |
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| 293 | * @return array |
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| 294 | */ |
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| 295 | public function getFirstOfItsTypeInArray($type, $array) |
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| 299 | }); |
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| 300 | } |
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| 301 | |||
| 302 | // ------------ |
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| 303 | // TONE FUNCTIONS - UNDOCUMENTED, UNTESTED, SOME MAY BE USED IN THIS FILE |
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| 304 | // ------------ |
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| 305 | // |
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| 306 | // TODO: |
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| 307 | // - figure out if they are really needed |
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| 308 | // - comments inside the function to explain how they work |
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| 309 | // - write docblock for them |
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| 310 | // - place in the correct section above (CREATE, READ, UPDATE, DELETE, ACCESS, MANIPULATION) |
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| 311 | |||
| 312 | public function sync($type, $fields, $attributes) |
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| 313 | { |
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| 314 | if (! empty($this->{$type})) { |
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| 315 | $this->{$type} = array_map(function ($field) use ($fields, $attributes) { |
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| 316 | if (in_array($field['name'], (array) $fields)) { |
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| 317 | $field = array_merge($field, $attributes); |
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| 318 | } |
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| 319 | |||
| 320 | return $field; |
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| 321 | }, $this->{$type}); |
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| 322 | } |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * Get the Eloquent Model name from the given relation definition string. |
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| 327 | * |
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| 328 | * @example For a given string 'company' and a relation between App/Models/User and App/Models/Company, defined by a |
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| 329 | * company() method on the user model, the 'App/Models/Company' string will be returned. |
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| 330 | * @example For a given string 'company.address' and a relation between App/Models/User, App/Models/Company and |
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| 331 | * App/Models/Address defined by a company() method on the user model and an address() method on the |
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| 332 | * company model, the 'App/Models/Address' string will be returned. |
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| 333 | * |
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| 334 | * @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
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| 335 | * @param int $length Optionally specify the number of relations to omit from the start of the relation string. If |
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| 336 | * the provided length is negative, then that many relations will be omitted from the end of the relation |
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| 337 | * string. |
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| 338 | * @param \Illuminate\Database\Eloquent\Model $model Optionally specify a different model than the one in the crud object. |
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| 339 | * |
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| 340 | * @return string Relation model name. |
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| 341 | */ |
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| 342 | public function getRelationModel($relationString, $length = null, $model = null) |
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| 365 | } |
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| 366 | |||
| 367 | /** |
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| 368 | * Get the given attribute from a model or models resulting from the specified relation string (eg: the list of streets from |
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| 369 | * the many addresses of the company of a given user). |
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| 370 | * |
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| 371 | * @param \Illuminate\Database\Eloquent\Model $model Model (eg: user). |
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| 372 | * @param string $relationString Model relation. Can be a string representing the name of a relation method in the given |
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| 373 | * Model or one from a different Model through multiple relations. A dot notation can be used to specify |
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| 374 | * multiple relations (eg: user.company.address). |
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| 375 | * @param string $attribute The attribute from the relation model (eg: the street attribute from the address model). |
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| 376 | * |
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| 377 | * @return array An array containing a list of attributes from the resulting model. |
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| 378 | */ |
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| 379 | public function getRelatedEntriesAttributes($model, $relationString, $attribute) |
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| 417 | } |
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| 418 | |||
| 419 | /** |
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| 420 | * Parse translatable attributes from a model or models resulting from the specified relation string. |
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| 421 | * |
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| 422 | * @param \Illuminate\Database\Eloquent\Model $model Model (eg: user). |
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| 423 | * @param string $attribute The attribute from the relation model (eg: the street attribute from the address model). |
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| 424 | * @param string $value Attribute value translatable or not |
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| 425 | * |
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| 426 | * @return string A string containing the translated attributed based on app()->getLocale() |
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| 427 | */ |
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| 428 | public function parseTranslatableAttributes($model, $attribute, $value) |
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| 429 | { |
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| 430 | if (! method_exists($model, 'isTranslatableAttribute')) { |
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| 431 | return $value; |
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| 432 | } |
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| 433 | |||
| 434 | if (! $model->isTranslatableAttribute($attribute)) { |
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| 435 | return $value; |
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| 436 | } |
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| 437 | |||
| 438 | if (! is_array($value)) { |
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| 439 | $decodedAttribute = json_decode($value, true); |
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| 440 | } else { |
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| 441 | $decodedAttribute = $value; |
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| 442 | } |
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| 443 | |||
| 444 | if (is_array($decodedAttribute) && ! empty($decodedAttribute)) { |
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| 445 | if (isset($decodedAttribute[app()->getLocale()])) { |
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| 446 | return $decodedAttribute[app()->getLocale()]; |
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| 447 | } else { |
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| 448 | return Arr::first($decodedAttribute); |
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| 449 | } |
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| 450 | } |
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| 451 | |||
| 452 | return $value; |
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| 453 | } |
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| 454 | |||
| 455 | /** |
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| 456 | * Traverse the tree of relations for the given model, defined by the given relation string, and return the ending |
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| 457 | * associated model instance or instances. |
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| 458 | * |
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| 459 | * @param \Illuminate\Database\Eloquent\Model $model The CRUD model. |
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| 460 | * @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
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| 461 | * |
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| 462 | * @return array An array of the associated model instances defined by the relation string. |
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| 463 | */ |
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| 464 | private function getRelatedEntries($model, $relationString) |
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| 495 | } |
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| 496 | |||
| 497 | /** |
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| 498 | * Enables use of the FormRequest Laravel class, completely. |
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| 499 | */ |
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| 500 | public function enableApproachFormRequest() |
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| 501 | { |
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| 502 | $this->enableApproachFormRequest = true; |
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| 503 | } |
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| 504 | |||
| 505 | /** |
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| 506 | * @return bool |
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| 507 | */ |
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| 508 | public function isEnableApproachFormRequest() |
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| 511 | } |
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| 512 | } |
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| 513 |
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