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<?php |
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namespace Okipa\LaravelModelJsonStorage; |
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use Illuminate\Database\Eloquent\ModelNotFoundException; |
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use Illuminate\Pagination\LengthAwarePaginator; |
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use Illuminate\Pagination\Paginator; |
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use Illuminate\Support\Collection; |
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trait BuilderOverride |
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{ |
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/** |
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* The "select" clauses of the query. |
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* |
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* @var array |
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*/ |
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protected $selects = []; |
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/** |
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* The "where" clauses of the query. |
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* |
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* @var array |
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*/ |
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protected $wheres = []; |
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/** |
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* The "whereIn" clauses of the query. |
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* |
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* @var array |
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*/ |
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protected $whereIns = []; |
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/** |
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* The "whereNotIn" clauses of the query. |
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* |
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* @var array |
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*/ |
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protected $whereNotIns = []; |
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/** |
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* The "orderBy" clauses of the query. |
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* |
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* @var array |
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*/ |
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protected $orderBys = []; |
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/** |
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* Get the number of models to return per page. |
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* |
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* @return int |
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*/ |
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abstract public function getPerPage(); |
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/** |
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* Set the column to be selected. |
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* |
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* @param string $column |
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* |
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* @return $this |
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*/ |
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public function select(string $column) |
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{ |
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$this->selects[] = $column; |
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return $this; |
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} |
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/** |
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* Add a new select column to the query. |
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* |
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* @param string $column |
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* |
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* @return $this |
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*/ |
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public function addSelect(string $column) |
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{ |
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$this->selects[] = $column; |
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return $this; |
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} |
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/** |
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* Add a "where in" clause to the query. |
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* |
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* @param string $column |
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* @param array $values |
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* |
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* @return $this |
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*/ |
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public function whereIn(string $column, array $values) |
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{ |
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$this->whereIns[] = compact('column', 'values'); |
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return $this; |
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} |
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/** |
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* Add a "where not in" clause to the query. |
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* |
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* @param string $column |
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* @param array $values |
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* |
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* @return $this |
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*/ |
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public function whereNotIn(string $column, array $values) |
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{ |
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$this->whereNotIns[] = compact('column', 'values'); |
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return $this; |
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} |
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/** |
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* Add an "order by" clause to the query. |
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* |
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* @param string $column |
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* @param string $direction |
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* |
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* @return $this |
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*/ |
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public function orderBy(string $column, string $direction = 'asc') |
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{ |
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$this->orderBys[] = compact('column', 'direction'); |
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return $this; |
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} |
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/** |
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* Find a model by its primary key or throw an exception. |
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* |
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* @param mixed $id |
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* @param array $columns |
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* |
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* @return \Illuminate\Database\Eloquent\Model|\Illuminate\Database\Eloquent\Collection |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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*/ |
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public function findOrFail(int $id, array $columns = ['*']) |
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{ |
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$result = $this->find($id, $columns); |
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if (! is_null($result)) { |
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return $result; |
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} |
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throw (new ModelNotFoundException)->setModel( |
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get_class($this), $id |
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); |
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} |
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/** |
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* Execute a query for a single record by ID. |
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* |
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* @param int $id |
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* @param array $columns |
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* |
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* @return mixed|static |
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*/ |
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public function find(int $id, array $columns = ['*']) |
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{ |
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return $this->where('id', '=', $id)->first($columns); |
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} |
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/** |
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* Execute the query and get the first result. |
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* |
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* @param array $columns |
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* |
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* @return Model|null |
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*/ |
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abstract public function first(array $columns = ['*']); |
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/** |
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* Add a basic where clause to the query. |
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* |
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* @param string $column |
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* @param mixed $operator |
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* @param mixed $value |
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* |
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* @return $this |
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*/ |
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public function where(string $column, $operator = null, $value = null) |
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{ |
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if (! isset($value)) { |
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$value = $operator; |
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$operator = '='; |
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} |
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$this->wheres[] = compact('column', 'operator', 'value'); |
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return $this; |
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} |
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/** |
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* Get a single column's value from the first result of a query. |
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* |
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* @param string $column |
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* The "pluck" collection method is used under the hood. |
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* |
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* @return Collection |
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*/ |
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public function value(string $column) |
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{ |
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return $this->get()->pluck($column)->first(); |
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} |
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/** |
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* Execute the query as a "select" statement. |
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* |
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* @param array $columns |
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* |
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* @return Collection |
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*/ |
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public function get(array $columns = ['*']) |
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{ |
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if ($columns !== ['*']) { |
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$this->selects = $columns; |
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} |
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$modelsCollection = $this->loadModelsFromJson(); |
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$this->applyWhereClauses($modelsCollection); |
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$this->applyWhereInClauses($modelsCollection); |
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$this->applyWhereNotInClauses($modelsCollection); |
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$this->applyOrderByClauses($modelsCollection); |
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$this->applySelectClauses($modelsCollection); |
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return $modelsCollection->values(); |
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} |
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/** |
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* Apply the "where" clauses on the collection. |
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* |
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* @param $modelsCollection |
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* |
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* @return void |
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*/ |
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protected function applyWhereClauses(Collection &$modelsCollection) |
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{ |
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if (! empty($this->wheres) && ! $modelsCollection->isEmpty()) { |
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foreach ($this->wheres as $where) { |
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$modelsCollection = $modelsCollection->where($where['column'], $where['operator'], $where['value']); |
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} |
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} |
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} |
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/** |
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* Apply the "whereIn" clauses on the collection. |
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* |
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* @param $modelsCollection |
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* |
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* @return void |
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*/ |
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protected function applyWhereInClauses(Collection &$modelsCollection) |
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{ |
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if (! empty($this->whereIns) && ! $modelsCollection->isEmpty()) { |
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foreach ($this->whereIns as $whereIn) { |
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$modelsCollection = $modelsCollection->whereIn($whereIn['column'], $whereIn['values']); |
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} |
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} |
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} |
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/** |
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* Apply the "whereNotIn" clauses on the collection. |
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* |
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* @param $modelsCollection |
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* |
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* @return void |
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*/ |
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protected function applyWhereNotInClauses(Collection &$modelsCollection) |
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{ |
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if (! empty($this->whereNotIns) && ! $modelsCollection->isEmpty()) { |
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foreach ($this->whereNotIns as $whereNotIn) { |
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$modelsCollection = $modelsCollection->whereNotIn($whereNotIn['column'], $whereNotIn['values']); |
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} |
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} |
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} |
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/** |
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* Apply the "orderBy" clauses on the collection. |
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* |
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* @param $modelsCollection |
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* |
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* @return void |
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*/ |
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protected function applyOrderByClauses(Collection &$modelsCollection) |
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{ |
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if (! empty($this->orderBys) && ! $modelsCollection->isEmpty()) { |
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foreach ($this->orderBys as $orders) { |
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$modelsCollection = $modelsCollection->sortBy( |
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$orders['column'], |
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SORT_REGULAR, |
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$orders['direction'] === 'desc' |
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); |
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} |
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} |
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} |
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/** |
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* Apply the "select" clauses on the collection. |
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* |
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* @param $modelsCollection |
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* |
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* @return void |
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*/ |
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protected function applySelectClauses(Collection &$modelsCollection) |
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{ |
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if (! empty($this->selects) && $this->selects !== ['*'] && ! $modelsCollection->isEmpty()) { |
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$selectCollection = new Collection(); |
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$modelsCollection->each(function($model) use ($selectCollection) { |
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$selectCollection->push(collect($model->toArray())->only(array_unique($this->selects))); |
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}); |
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$modelsCollection = $selectCollection; |
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} |
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} |
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/** |
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* Get an array with the values of a given column. |
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* |
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* @param string $column |
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* @param string null|$key |
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* |
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* @return Collection |
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*/ |
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public function pluck(string $column, string $key = null) |
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{ |
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return $this->get()->pluck($column, $key); |
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} |
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/** |
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* Retrieve the "count" result of the query. |
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* |
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* @param array $columns |
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* |
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* @return int |
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*/ |
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public function count(array $columns = ['*']) |
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{ |
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return $this->get($columns)->count(); |
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} |
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/** |
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* Retrieve the minimum value of a given column. |
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* |
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* @param $column |
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* |
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* @return int |
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*/ |
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public function min(string $column) |
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{ |
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return $this->get()->min($column); |
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} |
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/** |
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* Retrieve the maximum value of a given column. |
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* |
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* @param string $column |
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* |
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* @return int |
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*/ |
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public function max(string $column) |
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{ |
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return $this->get()->max($column); |
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} |
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/** |
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* Retrieve the average of the values of a given column. |
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* |
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* @param string $column |
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* |
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* @return mixed |
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*/ |
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public function avg($column) |
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{ |
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return $this->get()->avg($column); |
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} |
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|
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/** |
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* Paginate the given query. |
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* |
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* @param int|null $perPage |
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* @param array $columns |
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* @param string $pageName |
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* @param int|null $page |
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* |
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* @return \Illuminate\Contracts\Pagination\LengthAwarePaginator |
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* @throws \InvalidArgumentException |
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*/ |
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public function paginate(int $perPage = null, array $columns = ['*'], string $pageName = 'page', int $page = null) |
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{ |
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$page = $page ?: Paginator::resolveCurrentPage($pageName); |
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$perPage = $perPage ?: $this->getPerPage(); |
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$modelsCollection = $this->get($columns); |
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$items = $modelsCollection->forPage($page, $perPage)->values(); |
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$total = $modelsCollection->count(); |
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|
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return new LengthAwarePaginator( |
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1 |
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$items, |
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1 |
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$total, |
389
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1 |
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$perPage, |
390
|
1 |
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$page, |
391
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|
|
[ |
392
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1 |
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'path' => Paginator::resolveCurrentPath(), |
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1 |
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'pageName' => $pageName, |
394
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] |
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); |
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} |
397
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|
398
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|
/** |
399
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|
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* Load all of the models from the json file in the "modelsFromJson" variable. |
400
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|
* |
401
|
|
|
* @return Collection |
402
|
|
|
*/ |
403
|
|
|
abstract protected function loadModelsFromJson(); |
404
|
|
|
} |
405
|
|
|
|