Laravel-Backpack /
CRUD
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| Total Complexity | 52 |
| Total Lines | 454 |
| Duplicated Lines | 0 % |
| Changes | 7 | ||
| Bugs | 3 | Features | 0 |
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 | // The following methods are used in CrudController or your EntityCrudController to manipulate the variables above. |
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| 61 | |||
| 62 | public function __construct() |
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| 63 | { |
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| 64 | $this->setRequest(); |
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| 65 | |||
| 66 | if ($this->getCurrentOperation()) { |
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| 67 | $this->setOperation($this->getCurrentOperation()); |
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| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * Set the request instance for this CRUD. |
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| 73 | * |
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| 74 | * @param \Illuminate\Http\Request $request |
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| 75 | */ |
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| 76 | public function setRequest($request = null) |
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| 77 | { |
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| 78 | $this->request = $request ?? \Request::instance(); |
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| 79 | } |
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| 80 | |||
| 81 | /** |
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| 82 | * [getRequest description]. |
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| 83 | * @return [type] [description] |
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| 84 | */ |
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| 85 | public function getRequest() |
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| 86 | { |
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| 87 | return $this->request; |
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| 88 | } |
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| 89 | |||
| 90 | // ------------------------------------------------------ |
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| 91 | // BASICS - model, route, entity_name, entity_name_plural |
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| 92 | // ------------------------------------------------------ |
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| 93 | |||
| 94 | /** |
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| 95 | * This function binds the CRUD to its corresponding Model (which extends Eloquent). |
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| 96 | * All Create-Read-Update-Delete operations are done using that Eloquent Collection. |
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| 97 | * |
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| 98 | * @param string $model_namespace Full model namespace. Ex: App\Models\Article |
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| 99 | * |
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| 100 | * @throws \Exception in case the model does not exist |
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| 101 | */ |
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| 102 | public function setModel($model_namespace) |
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| 103 | { |
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| 104 | if (! class_exists($model_namespace)) { |
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| 105 | throw new \Exception('The model does not exist.', 500); |
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| 106 | } |
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| 107 | |||
| 108 | if (! method_exists($model_namespace, 'hasCrudTrait')) { |
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| 109 | throw new \Exception('Please use CrudTrait on the model.', 500); |
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| 110 | } |
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| 111 | |||
| 112 | $this->model = new $model_namespace(); |
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| 113 | $this->query = $this->model->select('*'); |
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| 114 | $this->entry = null; |
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| 115 | } |
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| 116 | |||
| 117 | /** |
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| 118 | * Get the corresponding Eloquent Model for the CrudController, as defined with the setModel() function. |
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| 119 | * |
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| 120 | * @return string|\Illuminate\Database\Eloquent\Model |
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| 121 | */ |
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| 122 | public function getModel() |
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| 123 | { |
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| 124 | return $this->model; |
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| 125 | } |
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| 126 | |||
| 127 | /** |
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| 128 | * Get the database connection, as specified in the .env file or overwritten by the property on the model. |
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| 129 | * |
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| 130 | * @return \Illuminate\Database\Schema\Builder |
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| 131 | */ |
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| 132 | private function getSchema() |
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| 135 | } |
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| 136 | |||
| 137 | /** |
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| 138 | * Check if the database connection driver is using mongodb. |
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| 139 | * |
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| 140 | * @return bool |
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| 141 | */ |
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| 142 | private function driverIsMongoDb() |
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| 145 | } |
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| 146 | |||
| 147 | /** |
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| 148 | * Check if the database connection is any sql driver. |
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| 149 | * |
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| 150 | * @return bool |
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| 151 | */ |
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| 152 | private function driverIsSql() |
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| 153 | { |
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| 154 | $driver = $this->getSchema()->getConnection()->getConfig()['driver']; |
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| 155 | |||
| 156 | return in_array($driver, $this->getSqlDriverList()); |
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| 157 | } |
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| 158 | |||
| 159 | /** |
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| 160 | * Get SQL driver list. |
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| 161 | * |
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| 162 | * @return array |
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| 163 | */ |
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| 164 | private function getSqlDriverList() |
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| 165 | { |
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| 166 | return ['mysql', 'sqlsrv', 'sqlite', 'pgsql']; |
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| 167 | } |
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| 168 | |||
| 169 | /** |
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| 170 | * Set the route for this CRUD. |
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| 171 | * Ex: admin/article. |
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| 172 | * |
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| 173 | * @param string $route Route name. |
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| 174 | */ |
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| 175 | public function setRoute($route) |
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| 176 | { |
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| 177 | $this->route = $route; |
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| 178 | } |
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| 179 | |||
| 180 | /** |
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| 181 | * Set the route for this CRUD using the route name. |
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| 182 | * Ex: admin.article. |
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| 183 | * |
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| 184 | * @param string $route Route name. |
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| 185 | * @param array $parameters Parameters. |
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| 186 | * |
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| 187 | * @throws \Exception |
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| 188 | */ |
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| 189 | public function setRouteName($route, $parameters = []) |
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| 198 | } |
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| 199 | |||
| 200 | /** |
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| 201 | * Get the current CrudController route. |
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| 202 | * |
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| 203 | * Can be defined in the CrudController with: |
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| 204 | * - $this->crud->setRoute(config('backpack.base.route_prefix').'/article') |
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| 205 | * - $this->crud->setRouteName(config('backpack.base.route_prefix').'.article') |
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| 206 | * - $this->crud->route = config('backpack.base.route_prefix')."/article" |
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| 207 | * |
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| 208 | * @return string |
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| 209 | */ |
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| 210 | public function getRoute() |
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| 211 | { |
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| 212 | return $this->route; |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * Set the entity name in singular and plural. |
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| 217 | * Used all over the CRUD interface (header, add button, reorder button, breadcrumbs). |
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| 218 | * |
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| 219 | * @param string $singular Entity name, in singular. Ex: article |
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| 220 | * @param string $plural Entity name, in plural. Ex: articles |
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| 221 | */ |
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| 222 | public function setEntityNameStrings($singular, $plural) |
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| 223 | { |
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| 224 | $this->entity_name = $singular; |
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| 225 | $this->entity_name_plural = $plural; |
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| 226 | } |
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| 227 | |||
| 228 | // ----------------------------------------------- |
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| 229 | // ACTIONS - the current operation being processed |
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| 230 | // ----------------------------------------------- |
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| 231 | |||
| 232 | /** |
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| 233 | * Get the action being performed by the controller, |
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| 234 | * including middleware names, route name, method name, |
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| 235 | * namespace, prefix, etc. |
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| 236 | * |
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| 237 | * @return string The EntityCrudController route action array. |
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| 238 | */ |
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| 239 | public function getAction() |
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| 240 | { |
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| 241 | return $this->getRequest()->route()->getAction(); |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * Get the full name of the controller method |
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| 246 | * currently being called (including namespace). |
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| 247 | * |
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| 248 | * @return string The EntityCrudController full method name with namespace. |
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| 249 | */ |
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| 250 | public function getActionName() |
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| 253 | } |
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| 254 | |||
| 255 | /** |
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| 256 | * Get the name of the controller method |
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| 257 | * currently being called. |
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| 258 | * |
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| 259 | * @return string The EntityCrudController method name. |
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| 260 | */ |
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| 261 | public function getActionMethod() |
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| 262 | { |
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| 263 | return $this->getRequest()->route()->getActionMethod(); |
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| 264 | } |
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| 265 | |||
| 266 | /** |
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| 267 | * Check if the controller method being called |
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| 268 | * matches a given string. |
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| 269 | * |
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| 270 | * @param string $methodName Name of the method (ex: index, create, update) |
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| 271 | * |
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| 272 | * @return bool Whether the condition is met or not. |
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| 273 | */ |
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| 274 | public function actionIs($methodName) |
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| 275 | { |
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| 276 | return $methodName === $this->getActionMethod(); |
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| 277 | } |
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| 278 | |||
| 279 | // ---------------------------------- |
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| 280 | // Miscellaneous functions or methods |
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| 281 | // ---------------------------------- |
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| 282 | |||
| 283 | /** |
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| 284 | * Return the first element in an array that has the given 'type' attribute. |
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| 285 | * |
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| 286 | * @param string $type |
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| 287 | * @param array $array |
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| 288 | * |
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| 289 | * @return array |
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| 290 | */ |
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| 291 | public function getFirstOfItsTypeInArray($type, $array) |
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| 292 | { |
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| 293 | return Arr::first($array, function ($item) use ($type) { |
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| 294 | return $item['type'] == $type; |
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| 295 | }); |
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| 296 | } |
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| 297 | |||
| 298 | // ------------ |
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| 299 | // TONE FUNCTIONS - UNDOCUMENTED, UNTESTED, SOME MAY BE USED IN THIS FILE |
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| 300 | // ------------ |
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| 301 | // |
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| 302 | // TODO: |
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| 303 | // - figure out if they are really needed |
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| 304 | // - comments inside the function to explain how they work |
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| 305 | // - write docblock for them |
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| 306 | // - place in the correct section above (CREATE, READ, UPDATE, DELETE, ACCESS, MANIPULATION) |
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| 307 | |||
| 308 | public function sync($type, $fields, $attributes) |
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| 309 | { |
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| 310 | if (! empty($this->{$type})) { |
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| 311 | $this->{$type} = array_map(function ($field) use ($fields, $attributes) { |
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| 312 | if (in_array($field['name'], (array) $fields)) { |
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| 313 | $field = array_merge($field, $attributes); |
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| 314 | } |
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| 315 | |||
| 316 | return $field; |
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| 317 | }, $this->{$type}); |
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| 318 | } |
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| 319 | } |
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| 320 | |||
| 321 | /** |
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| 322 | * Get the Eloquent Model name from the given relation definition string. |
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| 323 | * |
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| 324 | * @example For a given string 'company' and a relation between App/Models/User and App/Models/Company, defined by a |
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| 325 | * company() method on the user model, the 'App/Models/Company' string will be returned. |
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| 326 | * @example For a given string 'company.address' and a relation between App/Models/User, App/Models/Company and |
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| 327 | * App/Models/Address defined by a company() method on the user model and an address() method on the |
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| 328 | * company model, the 'App/Models/Address' string will be returned. |
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| 329 | * |
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| 330 | * @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
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| 331 | * @param int $length Optionally specify the number of relations to omit from the start of the relation string. If |
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| 332 | * the provided length is negative, then that many relations will be omitted from the end of the relation |
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| 333 | * string. |
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| 334 | * @param \Illuminate\Database\Eloquent\Model $model Optionally specify a different model than the one in the crud object. |
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| 335 | * |
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| 336 | * @return string Relation model name. |
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| 337 | */ |
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| 338 | public function getRelationModel($relationString, $length = null, $model = null) |
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| 339 | { |
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| 340 | $relationArray = explode('.', $relationString); |
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| 341 | |||
| 342 | if (! isset($length)) { |
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| 343 | $length = count($relationArray); |
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| 344 | } |
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| 345 | |||
| 346 | if (! isset($model)) { |
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| 347 | $model = $this->model; |
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| 348 | } |
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| 349 | |||
| 350 | $result = array_reduce(array_splice($relationArray, 0, $length), function ($obj, $method) { |
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| 351 | try { |
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| 352 | $result = $obj->$method(); |
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| 353 | |||
| 354 | return $result->getRelated(); |
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| 355 | } catch (Exception $e) { |
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| 356 | return $obj; |
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| 357 | } |
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| 358 | }, $model); |
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| 359 | |||
| 360 | return get_class($result); |
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| 361 | } |
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| 362 | |||
| 363 | /** |
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| 364 | * 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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| 365 | * the many addresses of the company of a given user). |
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| 366 | * |
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| 367 | * @param \Illuminate\Database\Eloquent\Model $model Model (eg: user). |
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| 368 | * @param string $relationString Model relation. Can be a string representing the name of a relation method in the given |
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| 369 | * Model or one from a different Model through multiple relations. A dot notation can be used to specify |
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| 370 | * multiple relations (eg: user.company.address). |
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| 371 | * @param string $attribute The attribute from the relation model (eg: the street attribute from the address model). |
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| 372 | * |
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| 373 | * @return array An array containing a list of attributes from the resulting model. |
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| 374 | */ |
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| 375 | public function getRelatedEntriesAttributes($model, $relationString, $attribute) |
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| 413 | } |
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| 414 | |||
| 415 | /** |
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| 416 | * Parse translatable attributes from a model or models resulting from the specified relation string. |
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| 417 | * |
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| 418 | * @param \Illuminate\Database\Eloquent\Model $model Model (eg: user). |
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| 419 | * @param string $attribute The attribute from the relation model (eg: the street attribute from the address model). |
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| 420 | * @param string $value Attribute value translatable or not |
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| 421 | * |
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| 422 | * @return string A string containing the translated attributed based on app()->getLocale() |
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| 423 | */ |
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| 424 | public function parseTranslatableAttributes($model, $attribute, $value) |
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| 425 | { |
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| 426 | if (! method_exists($model, 'isTranslatableAttribute')) { |
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| 427 | return $value; |
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| 428 | } |
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| 429 | |||
| 430 | if (! $model->isTranslatableAttribute($attribute)) { |
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| 431 | return $value; |
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| 432 | } |
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| 433 | |||
| 434 | if (! is_array($value)) { |
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| 435 | $decodedAttribute = json_decode($value, true); |
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| 436 | } else { |
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| 437 | $decodedAttribute = $value; |
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| 438 | } |
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| 439 | |||
| 440 | if (is_array($decodedAttribute) && ! empty($decodedAttribute)) { |
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| 441 | if (isset($decodedAttribute[app()->getLocale()])) { |
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| 442 | return $decodedAttribute[app()->getLocale()]; |
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| 443 | } else { |
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| 444 | return Arr::first($decodedAttribute); |
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| 445 | } |
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| 446 | } |
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| 447 | |||
| 448 | return $value; |
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| 449 | } |
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| 450 | |||
| 451 | /** |
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| 452 | * Traverse the tree of relations for the given model, defined by the given relation string, and return the ending |
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| 453 | * associated model instance or instances. |
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| 454 | * |
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| 455 | * @param \Illuminate\Database\Eloquent\Model $model The CRUD model. |
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| 456 | * @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
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| 457 | * |
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| 458 | * @return array An array of the associated model instances defined by the relation string. |
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| 459 | */ |
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| 460 | private function getRelatedEntries($model, $relationString) |
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| 491 | } |
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| 492 | } |
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| 493 |
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