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<?php |
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namespace Backpack\CRUD; |
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use Backpack\CRUD\PanelTraits\Read; |
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use Backpack\CRUD\PanelTraits\Tabs; |
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use Backpack\CRUD\PanelTraits\Query; |
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use Backpack\CRUD\PanelTraits\Views; |
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use Backpack\CRUD\PanelTraits\Access; |
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use Backpack\CRUD\PanelTraits\Create; |
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use Backpack\CRUD\PanelTraits\Delete; |
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use Backpack\CRUD\PanelTraits\Errors; |
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use Backpack\CRUD\PanelTraits\Fields; |
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use Backpack\CRUD\PanelTraits\Search; |
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use Backpack\CRUD\PanelTraits\Update; |
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use Backpack\CRUD\PanelTraits\AutoSet; |
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use Backpack\CRUD\PanelTraits\Buttons; |
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use Backpack\CRUD\PanelTraits\Columns; |
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use Backpack\CRUD\PanelTraits\Filters; |
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use Backpack\CRUD\PanelTraits\Reorder; |
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use Backpack\CRUD\PanelTraits\AutoFocus; |
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use Backpack\CRUD\PanelTraits\FakeFields; |
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use Backpack\CRUD\PanelTraits\FakeColumns; |
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use Illuminate\Database\Eloquent\Collection; |
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use Backpack\CRUD\PanelTraits\RequiredFields; |
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use Backpack\CRUD\PanelTraits\ViewsAndRestoresRevisions; |
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class CrudPanel |
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{ |
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use Create, Read, Search, Update, Delete, Errors, Reorder, Access, Columns, Fields, Query, Buttons, AutoSet, FakeFields, FakeColumns, ViewsAndRestoresRevisions, AutoFocus, Filters, Tabs, Views, RequiredFields; |
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// -------------- |
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// CRUD variables |
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// -------------- |
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// These variables are passed to the CRUD views, inside the $crud variable. |
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// All variables are public, so they can be modified from your EntityCrudController. |
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// All functions and methods are also public, so they can be used in your EntityCrudController to modify these variables. |
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// TODO: translate $entity_name and $entity_name_plural by default, with english fallback |
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public $model = "\App\Models\Entity"; // what's the namespace for your entity's model |
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public $route; // what route have you defined for your entity? used for links. |
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public $entity_name = 'entry'; // what name will show up on the buttons, in singural (ex: Add entity) |
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public $entity_name_plural = 'entries'; // what name will show up on the buttons, in plural (ex: Delete 5 entities) |
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public $request; |
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public $access = ['list', 'create', 'update', 'delete'/* 'revisions', reorder', 'show', 'details_row' */]; |
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public $reorder = false; |
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public $reorder_label = false; |
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public $reorder_max_level = 3; |
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public $details_row = false; |
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public $export_buttons = false; |
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public $columns = []; // Define the columns for the table view as an array; |
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public $create_fields = []; // Define the fields for the "Add new entry" view as an array; |
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public $update_fields = []; // Define the fields for the "Edit entry" view as an array; |
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public $query; |
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public $entry; |
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public $buttons; |
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public $db_column_types = []; |
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public $default_page_length = false; |
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public $page_length_menu = false; |
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// TONE FIELDS - TODO: find out what he did with them, replicate or delete |
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public $sort = []; |
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// The following methods are used in CrudController or your EntityCrudController to manipulate the variables above. |
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public function __construct() |
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{ |
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$this->setErrorDefaults(); |
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$this->initButtons(); |
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} |
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// ------------------------------------------------------ |
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// BASICS - model, route, entity_name, entity_name_plural |
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// ------------------------------------------------------ |
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/** |
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* This function binds the CRUD to its corresponding Model (which extends Eloquent). |
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* All Create-Read-Update-Delete operations are done using that Eloquent Collection. |
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* |
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* @param string $model_namespace Full model namespace. Ex: App\Models\Article] |
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* |
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* @throws \Exception in case the model does not exist |
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*/ |
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public function setModel($model_namespace) |
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{ |
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if (! class_exists($model_namespace)) { |
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throw new \Exception('This model does not exist.', 404); |
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} |
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$this->model = new $model_namespace(); |
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$this->query = $this->model->select('*'); |
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$this->entry = null; |
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} |
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/** |
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* Get the corresponding Eloquent Model for the CrudController, as defined with the setModel() function;. |
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* |
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* @return [Eloquent Collection] |
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*/ |
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public function getModel() |
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{ |
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return $this->model; |
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} |
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/** |
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* Get the database connection, as specified in the .env file or overwritten by the property on the model. |
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*/ |
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private function getSchema() |
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{ |
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return \Schema::setConnection($this->getModel()->getConnection()); |
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} |
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/** |
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* Set the route for this CRUD. |
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* Ex: admin/article. |
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* |
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* @param [string] Route name. |
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* @param [array] Parameters. |
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*/ |
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public function setRoute($route) |
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{ |
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$this->route = $route; |
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} |
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/** |
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* Set the route for this CRUD using the route name. |
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* Ex: admin.article. |
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* |
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* @param [string] Route name. |
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* @param [array] Parameters. |
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*/ |
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public function setRouteName($route, $parameters = []) |
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{ |
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$complete_route = $route.'.index'; |
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if (! \Route::has($complete_route)) { |
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throw new \Exception('There are no routes for this route name.', 404); |
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} |
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$this->route = route($complete_route, $parameters); |
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$this->initButtons(); |
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} |
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/** |
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* Get the current CrudController route. |
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* |
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* Can be defined in the CrudController with: |
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* - $this->crud->setRoute(config('backpack.base.route_prefix').'/article') |
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* - $this->crud->setRouteName(config('backpack.base.route_prefix').'.article') |
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* - $this->crud->route = config('backpack.base.route_prefix')."/article" |
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* |
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* @return [string] |
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*/ |
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public function getRoute() |
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{ |
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return $this->route; |
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} |
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/** |
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* Set the entity name in singular and plural. |
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* Used all over the CRUD interface (header, add button, reorder button, breadcrumbs). |
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* |
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* @param [string] Entity name, in singular. Ex: article |
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* @param [string] Entity name, in plural. Ex: articles |
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*/ |
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public function setEntityNameStrings($singular, $plural) |
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{ |
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$this->entity_name = $singular; |
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$this->entity_name_plural = $plural; |
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} |
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// ----------------------------------------------- |
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// ACTIONS - the current operation being processed |
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// ----------------------------------------------- |
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/** |
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* Get the action being performed by the controller, |
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* including middleware names, route name, method name, |
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* namespace, prefix, etc. |
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* |
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* @return string The EntityCrudController route action array. |
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*/ |
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public function getAction() |
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{ |
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return $this->request->route()->getAction(); |
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} |
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/** |
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* Get the full name of the controller method |
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* currently being called (including namespace). |
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* |
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* @return string The EntityCrudController full method name with namespace. |
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*/ |
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public function getActionName() |
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{ |
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return $this->request->route()->getActionName(); |
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} |
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/** |
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* Get the name of the controller method |
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* currently being called. |
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* |
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* @return string The EntityCrudController method name. |
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*/ |
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public function getActionMethod() |
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{ |
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return $this->request->route()->getActionMethod(); |
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} |
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/** |
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* Check if the controller method being called |
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* matches a given string. |
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* |
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* @param string $methodName Name of the method (ex: index, create, update) |
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* @return bool Whether the condition is met or not. |
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*/ |
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public function actionIs($methodName) |
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{ |
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return $methodName === $this->getActionMethod(); |
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} |
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// ---------------------------------- |
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// Miscellaneous functions or methods |
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// ---------------------------------- |
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/** |
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* Return the first element in an array that has the given 'type' attribute. |
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* |
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* @param string $type |
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* @param array $array |
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* |
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* @return array |
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*/ |
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public function getFirstOfItsTypeInArray($type, $array) |
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{ |
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return array_first($array, function ($item) use ($type) { |
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return $item['type'] == $type; |
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}); |
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} |
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// ------------ |
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// TONE FUNCTIONS - UNDOCUMENTED, UNTESTED, SOME MAY BE USED IN THIS FILE |
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// ------------ |
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// |
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// TODO: |
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// - figure out if they are really needed |
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// - comments inside the function to explain how they work |
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// - write docblock for them |
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// - place in the correct section above (CREATE, READ, UPDATE, DELETE, ACCESS, MANIPULATION) |
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public function sync($type, $fields, $attributes) |
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{ |
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if (! empty($this->{$type})) { |
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$this->{$type} = array_map(function ($field) use ($fields, $attributes) { |
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if (in_array($field['name'], (array) $fields)) { |
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$field = array_merge($field, $attributes); |
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} |
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return $field; |
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}, $this->{$type}); |
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} |
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} |
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/** |
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* @deprecated No longer used by internal code and not recommended. |
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*/ |
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public function setSort($items, $order) |
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{ |
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$this->sort[$items] = $order; |
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} |
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/** |
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* @deprecated No longer used by internal code and not recommended. |
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*/ |
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public function sort($items) |
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{ |
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if (array_key_exists($items, $this->sort)) { |
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$elements = []; |
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foreach ($this->sort[$items] as $item) { |
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if (is_numeric($key = array_search($item, array_column($this->{$items}, 'name')))) { |
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$elements[] = $this->{$items}[$key]; |
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} |
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} |
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return $this->{$items} = array_merge($elements, array_filter($this->{$items}, function ($item) use ($items) { |
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return ! in_array($item['name'], $this->sort[$items]); |
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})); |
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} |
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return $this->{$items}; |
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} |
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/** |
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* Get the Eloquent Model name from the given relation definition string. |
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* |
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* @example For a given string 'company' and a relation between App/Models/User and App/Models/Company, defined by a |
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* company() method on the user model, the 'App/Models/Company' string will be returned. |
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* |
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* @example For a given string 'company.address' and a relation between App/Models/User, App/Models/Company and |
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* App/Models/Address defined by a company() method on the user model and an address() method on the |
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* company model, the 'App/Models/Address' string will be returned. |
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* |
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* @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
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* @param int $length Optionally specify the number of relations to omit from the start of the relation string. If |
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* the provided length is negative, then that many relations will be omitted from the end of the relation |
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* string. |
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* @param \Illuminate\Database\Eloquent\Model $model Optionally specify a different model than the one in the crud object. |
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* |
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* @return string Relation model name. |
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*/ |
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public function getRelationModel($relationString, $length = null, $model = null) |
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{ |
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$relationArray = explode('.', $relationString); |
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if (! isset($length)) { |
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$length = count($relationArray); |
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} |
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if (! isset($model)) { |
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$model = $this->model; |
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} |
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$result = array_reduce(array_splice($relationArray, 0, $length), function ($obj, $method) { |
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return $obj->$method()->getRelated(); |
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}, $model); |
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return get_class($result); |
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} |
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/** |
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* 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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* the many addresses of the company of a given user). |
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* |
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* @param \Illuminate\Database\Eloquent\Model $model Model (eg: user). |
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* @param string $relationString Model relation. Can be a string representing the name of a relation method in the given |
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* Model or one from a different Model through multiple relations. A dot notation can be used to specify |
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* multiple relations (eg: user.company.address). |
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* @param string $attribute The attribute from the relation model (eg: the street attribute from the address model). |
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* |
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* @return array An array containing a list of attributes from the resulting model. |
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*/ |
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public function getModelAttributeFromRelation($model, $relationString, $attribute) |
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|
{ |
351
|
|
|
$endModels = $this->getRelationModelInstances($model, $relationString); |
352
|
|
|
$attributes = []; |
353
|
|
|
foreach ($endModels as $model) { |
354
|
|
|
if ($model->{$attribute}) { |
355
|
|
|
$attributes[] = $model->{$attribute}; |
356
|
|
|
} |
357
|
|
|
} |
358
|
|
|
|
359
|
|
|
return $attributes; |
360
|
|
|
} |
361
|
|
|
|
362
|
|
|
/** |
363
|
|
|
* Traverse the tree of relations for the given model, defined by the given relation string, and return the ending |
364
|
|
|
* associated model instance or instances. |
365
|
|
|
* |
366
|
|
|
* @param \Illuminate\Database\Eloquent\Model $model The CRUD model. |
367
|
|
|
* @param string $relationString Relation string. A dot notation can be used to chain multiple relations. |
368
|
|
|
* @return array An array of the associated model instances defined by the relation string. |
369
|
|
|
*/ |
370
|
|
|
private function getRelationModelInstances($model, $relationString) |
371
|
|
|
{ |
372
|
|
|
$relationArray = explode('.', $relationString); |
373
|
|
|
$firstRelationName = array_first($relationArray); |
374
|
|
|
$relation = $model->{$firstRelationName}; |
375
|
|
|
|
376
|
|
|
$results = []; |
377
|
|
|
if (! empty($relation)) { |
378
|
|
|
if ($relation instanceof Collection) { |
379
|
|
|
$currentResults = $relation->toArray(); |
380
|
|
|
} else { |
381
|
|
|
$currentResults[] = $relation; |
|
|
|
|
382
|
|
|
} |
383
|
|
|
|
384
|
|
|
array_shift($relationArray); |
385
|
|
|
|
386
|
|
|
if (! empty($relationArray)) { |
387
|
|
|
foreach ($currentResults as $currentResult) { |
388
|
|
|
$results = array_merge($results, $this->getRelationModelInstances($currentResult, implode('.', $relationArray))); |
|
|
|
|
389
|
|
|
} |
390
|
|
|
} else { |
391
|
|
|
$results = $currentResults; |
392
|
|
|
} |
393
|
|
|
} |
394
|
|
|
|
395
|
|
|
return $results; |
396
|
|
|
} |
397
|
|
|
} |
398
|
|
|
|
This check marks property names that have not been written in camelCase.
In camelCase names are written without any punctuation, the start of each new word being marked by a capital letter. Thus the name database connection string becomes
databaseConnectionString
.