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<?php |
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namespace LaravelFreelancerNL\Aranguent\Eloquent\Concerns; |
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use Illuminate\Database\Eloquent\Builder as IlluminateBuilder; |
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use Illuminate\Database\Query\Builder as IlluminateQueryBuilder; |
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use Illuminate\Database\Query\Expression; |
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use Illuminate\Support\Str; |
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use LaravelFreelancerNL\Aranguent\Query\Builder as QueryBuilder; |
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use LaravelFreelancerNL\FluentAQL\Expressions\FunctionExpression; |
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use LaravelFreelancerNL\FluentAQL\QueryBuilder as ArangoQueryBuilder; |
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trait QueriesAranguentRelationships |
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{ |
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/** |
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* Add a sub-query count clause to this query. |
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* |
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* @param QueryBuilder $query |
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* @param string $operator |
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* @param int $count |
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* @param string $boolean |
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* @return IlluminateBuilder |
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*/ |
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protected function addWhereCountQuery( |
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IlluminateQueryBuilder $query, |
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$operator = '>=', |
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$count = 1, |
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$boolean = 'and' |
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): IlluminateBuilder { |
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$query->grammar->compileSelect($query); |
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return $this->where( |
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$query->aqb->count($query->aqb), |
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$operator, |
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is_numeric($count) ? new Expression($count) : $count, |
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$boolean |
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); |
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} |
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/** |
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* Add subselect queries to include an aggregate value for a relationship. |
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* Overrides method in QueriesRelationships trait |
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* |
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* @param mixed $relations |
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* @param string|null $column |
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* @param string $function |
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* @return $this |
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*/ |
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public function withAggregate($relations, $column, $function = null) |
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{ |
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$result = null; |
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if (empty($relations)) { |
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return $this; |
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} |
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if (is_null($this->query->columns)) { |
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$this->query->select([$this->query->from . '.*']); |
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} |
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$relations = is_array($relations) ? $relations : [$relations]; |
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foreach ($this->parseWithRelations($relations) as $name => $constraints) { |
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// First we will determine if the name has been aliased using an "as" clause on the name |
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// and if it has we will extract the actual relationship name and the desired name of |
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// the resulting column. This allows multiple aggregates on the same relationships. |
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$segments = explode(' ', $name); |
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unset($alias); |
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if (count($segments) === 3 && Str::lower($segments[1]) === 'as') { |
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[$name, $alias] = [$segments[0], $segments[2]]; |
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} |
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$relation = $this->getRelationWithoutConstraints($name); |
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// Here, we will grab the relationship sub-query and prepare to add it to the main query |
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// as a sub-select. First, we'll get the "has" query and use that to get the relation |
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// sub-query. We'll format this relationship name and append this column if needed. |
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$query = $relation->getRelationExistenceQuery( |
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$relation->getRelated()->newQuery(), |
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$this |
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); |
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$query->callScope($constraints); |
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$query = $query->mergeConstraintsFrom($relation->getQuery())->toBase(); |
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// If the query contains certain elements like orderings / more than one column selected |
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// then we will remove those elements from the query so that it will execute properly |
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// when given to the database. Otherwise, we may receive SQL errors or poor syntax. |
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$query->orders = null; |
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if (count($query->columns) > 1) { |
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$query->columns = [$query->columns[0]]; |
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$query->bindings['select'] = []; |
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} |
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$result = $this->getAggregateResultQuery($query, $function); |
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// Finally, we will make the proper column alias to the query and run this sub-select on |
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// the query builder. Then, we will return the builder instance back to the developer |
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// for further constraint chaining that needs to take place on the query as needed. |
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$alias = $alias ?? Str::snake( |
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preg_replace('/[^[:alnum:][:space:]_]/u', '', "$name $function $column") |
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); |
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/** @phpstan-ignore-next-line */ |
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$this->selectSub( |
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$result, |
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$alias |
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); |
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} |
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return $this; |
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} |
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protected function getAggregateResultQuery(QueryBuilder $query, string $function): QueryBuilder|FunctionExpression |
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{ |
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if ($function) { |
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$query->grammar->compileSelect($query); |
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$result = (new ArangoQueryBuilder())->$function($query->aqb); |
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} |
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if (! $function) { |
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$query->limit(1); |
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$result = $query; |
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} |
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return $result; |
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} |
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} |
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LaravelFreelancerNL /
laravel-arangodb
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