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<?php |
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/* |
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* The MIT License |
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* |
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* Copyright 2014-2018 James Ekow Abaka Ainooson |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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namespace ntentan\nibii; |
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use ntentan\atiaa\Driver; |
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use ntentan\nibii\exceptions\ModelNotFoundException; |
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use ntentan\utils\Text; |
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/** |
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* Performs operations that query the database. |
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*/ |
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class QueryOperations |
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{ |
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/** |
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* An instance of the record wrapper being used. |
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* |
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* @var RecordWrapper |
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*/ |
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private $wrapper; |
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/** |
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* An instance of the driver adapter used in the database connection. |
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* |
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* @var DriverAdapter |
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*/ |
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private $adapter; |
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/** |
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* An instance of query parameters used to perform the various queries. |
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* |
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* @var QueryParameters |
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*/ |
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private $queryParameters; |
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/** |
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* The name of a method initialized through a dynamic method waiting to be executed. |
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* |
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* @var string |
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*/ |
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private $pendingMethod; |
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/** |
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* Regular expressions for matching dynamic methods. |
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* |
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* @var array |
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*/ |
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private $dynamicMethods = [ |
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'/(?<method>filterBy)(?<variable>[A-Z][A-Za-z]+){1}/', |
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'/(?<method>sort)(?<direction>Asc|Desc)?(By)(?<variable>[A-Z][A-Za-z]+){1}/', |
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'/(?<method>fetch)(?<first>First)?(With)(?<variable>[A-Za-z]+)/', |
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]; |
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/** |
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* An instance of the DataOperations class used for filtered deletes. |
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* |
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* @var DataOperations |
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*/ |
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private $dataOperations; |
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/** |
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* An instance of the Driver class used for establishing database connections. |
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* |
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* @var Driver |
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*/ |
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private $driver; |
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private $defaultQueryParameters = null; |
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/** |
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* QueryOperations constructor. |
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* |
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* @param RecordWrapper $wrapper |
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* @param DataOperations $dataOperations |
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* @param Driver $driver |
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* |
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* @internal param DriverAdapter $adapter |
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*/ |
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public function __construct(RecordWrapper $wrapper, DataOperations $dataOperations, Driver $driver) |
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{ |
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$this->wrapper = $wrapper; |
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$this->adapter = $wrapper->getAdapter(); |
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$this->dataOperations = $dataOperations; |
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$this->driver = $driver; |
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} |
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/** |
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* Fetches items from the database. |
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* |
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* @param int|array|QueryParameters $query |
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* |
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* @return RecordWrapper |
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* @throws \ReflectionException |
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* @throws \ntentan\atiaa\exceptions\ConnectionException |
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* @throws exceptions\NibiiException |
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*/ |
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public function doFetch($query = null) |
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{ |
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$parameters = $this->buildFetchQueryParameters($query); |
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$data = $this->adapter->select($parameters); |
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if (empty($data)) { |
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return; |
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} else { |
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$this->wrapper->setData($data); |
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//$this->resetQueryParameters(); |
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return $this->wrapper; |
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} |
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} |
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public function setDefaultQueryParameters(QueryParameters $queryParameters) |
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{ |
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$this->defaultQueryParameters = $queryParameters; |
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} |
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/** |
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* The method takes multiple types of arguments and converts it to a QueryParametersObject. |
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* When this method receives null, it returns a new instance of QueryParameters. When it receives an integer, it |
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* returns a QueryParameters object that points the primary key to the integer. When it receives an associative |
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* array, it builds a series of conditions with array key-value pairs. |
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* |
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* @param int|array|QueryParameters $arg |
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* @param bool $instantiate |
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* |
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* @return QueryParameters |
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* @throws \ReflectionException |
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* @throws \ntentan\atiaa\exceptions\ConnectionException |
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* @throws exceptions\NibiiException |
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*/ |
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private function buildFetchQueryParameters($arg, $instantiate = true) |
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{ |
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if ($arg instanceof QueryParameters) { |
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$this->queryParameters = $arg; |
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return $arg; |
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} |
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$parameters = $this->getQueryParameters($instantiate); |
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if (is_numeric($arg)) { |
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$description = $this->wrapper->getDescription(); |
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$parameters->addFilter($description->getPrimaryKey()[0], $arg); |
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$parameters->setFirstOnly(true); |
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} elseif (is_array($arg)) { |
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foreach ($arg as $field => $value) { |
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$parameters->addFilter($field, $value); |
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} |
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} |
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return $parameters; |
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} |
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/** |
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* Creates a new instance of the QueryParameters if required or just returns an already instance. |
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* |
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* @param bool $forceInstantiation |
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* |
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* @return QueryParameters |
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*/ |
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private function getQueryParameters($forceInstantiation = true) |
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{ |
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if ($this->queryParameters === null && $forceInstantiation) { |
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$this->queryParameters = new QueryParameters($this->wrapper->getDBStoreInformation()['quoted_table']); |
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} |
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return $this->queryParameters; |
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} |
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/** |
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* Clears up the query parameters. |
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*/ |
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private function resetQueryParameters() |
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{ |
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$this->queryParameters = $this->defaultQueryParameters ? clone $this->defaultQueryParameters : null; |
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} |
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/** |
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* Performs the fetch operation and returns just the first item. |
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* |
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* @param mixed $id |
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* |
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* @return RecordWrapper |
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* @throws \ReflectionException |
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* @throws \ntentan\atiaa\exceptions\ConnectionException |
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* @throws exceptions\NibiiException |
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*/ |
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public function doFetchFirst($id = null) |
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{ |
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$this->getQueryParameters()->setFirstOnly(true); |
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return $this->doFetch($id); |
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} |
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/** |
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* Set the fields that should be returned for each record. |
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* |
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* @return RecordWrapper |
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*/ |
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public function doFields() |
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{ |
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$fields = []; |
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$arguments = func_get_args(); |
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foreach ($arguments as $argument) { |
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if (is_array($argument)) { |
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$fields = array_merge($fields, $argument); |
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} else { |
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$fields[] = $argument; |
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} |
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} |
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$this->getQueryParameters()->setFields($fields); |
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return $this->wrapper; |
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} |
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public function doFix($query) |
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{ |
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$this->defaultQueryParameters = $query; |
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} |
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/** |
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* Sort the query by a given field in a given directory. |
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* |
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* @param string $field |
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* @param string $direction |
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*/ |
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public function doSortBy($field, $direction = 'ASC') |
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{ |
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$this->getQueryParameters()->addSort($field, $direction); |
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} |
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/** |
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* @param mixed $arguments |
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* |
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* @return array |
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*/ |
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private function getFilter($arguments) |
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{ |
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if (count($arguments) == 2 && is_array($arguments[1])) { |
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$filter = $arguments[0]; |
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$data = $arguments[1]; |
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} else { |
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$filter = array_shift($arguments); |
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$data = $arguments; |
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} |
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return ['filter' => $filter, 'data' => $data]; |
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} |
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public function doFilter() |
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{ |
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$arguments = func_get_args(); |
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if (count($arguments) == 1 && is_array($arguments[0])) { |
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foreach ($arguments[0] as $field => $value) { |
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$this->getQueryParameters()->addFilter($field, $value); |
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} |
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} else { |
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$details = $this->getFilter($arguments); |
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$this->getQueryParameters()->setFilter($details['filter'], $details['data']); |
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} |
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return $this->wrapper; |
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} |
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4 |
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public function doFilterBy() |
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{ |
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4 |
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$arguments = func_get_args(); |
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$details = $this->getFilter($arguments); |
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$this->getQueryParameters()->addFilter($details['filter'], $details['data']); |
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return $this->wrapper; |
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} |
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6 |
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public function doUpdate($data) |
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{ |
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$this->driver->beginTransaction(); |
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$parameters = $this->getQueryParameters(); |
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$this->adapter->bulkUpdate($data, $parameters); |
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$this->driver->commit(); |
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$this->resetQueryParameters(); |
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} |
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2 |
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public function doDelete($args = null) |
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{ |
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2 |
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$this->driver->beginTransaction(); |
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2 |
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$parameters = $this->buildFetchQueryParameters($args); |
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2 |
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if ($parameters === null) { |
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$primaryKey = $this->wrapper->getDescription()->getPrimaryKey(); |
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$parameters = $this->getQueryParameters(); |
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$data = $this->wrapper->getData(); |
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$keys = []; |
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foreach ($data as $datum) { |
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if ($this->dataOperations->isItemDeletable($primaryKey, $datum)) { |
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$keys[] = $datum[$primaryKey[0]]; |
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} |
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} |
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$parameters->addFilter($primaryKey[0], $keys); |
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$this->adapter->delete($parameters); |
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} else { |
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2 |
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$this->adapter->delete($parameters); |
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} |
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2 |
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$this->driver->commit(); |
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2 |
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$this->resetQueryParameters(); |
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2 |
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} |
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330
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331
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10 |
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public function runDynamicMethod($arguments) |
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332
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{ |
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333
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10 |
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$arguments = count($arguments) > 1 ? $arguments : ($arguments[0] ?? null); |
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334
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10 |
|
switch ($this->pendingMethod['method']) { |
|
335
|
10 |
|
case 'filterBy': |
|
336
|
4 |
|
$this->getQueryParameters()->addFilter(Text::deCamelize($this->pendingMethod['variable']), $arguments); |
|
337
|
|
|
|
|
338
|
4 |
|
return $this->wrapper; |
|
339
|
8 |
|
case 'sort': |
|
340
|
|
|
$this->getQueryParameters()->addSort(Text::deCamelize($this->pendingMethod['variable']), $this->pendingMethod['direction']); |
|
341
|
|
|
|
|
342
|
|
|
return $this->wrapper; |
|
343
|
8 |
|
case 'fetch': |
|
344
|
8 |
|
$parameters = $this->getQueryParameters(); |
|
345
|
8 |
|
$parameters->addFilter(Text::deCamelize($this->pendingMethod['variable']), $arguments); |
|
346
|
8 |
|
if ($this->pendingMethod['first'] === 'First') { |
|
347
|
8 |
|
$parameters->setFirstOnly(true); |
|
348
|
|
|
} |
|
349
|
|
|
|
|
350
|
8 |
|
return $this->doFetch(); |
|
351
|
|
|
} |
|
352
|
|
|
} |
|
353
|
|
|
|
|
354
|
10 |
|
public function initDynamicMethod($method) |
|
355
|
|
|
{ |
|
356
|
10 |
|
$return = false; |
|
357
|
|
|
|
|
358
|
10 |
|
foreach ($this->dynamicMethods as $regexp) { |
|
359
|
10 |
|
if (preg_match($regexp, $method, $matches)) { |
|
360
|
10 |
|
$return = true; |
|
361
|
10 |
|
$this->pendingMethod = $matches; |
|
|
|
|
|
|
362
|
10 |
|
break; |
|
363
|
|
|
} |
|
364
|
|
|
} |
|
365
|
|
|
|
|
366
|
10 |
|
return $return; |
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
public function doCount($query = null) |
|
|
|
|
|
|
370
|
|
|
{ |
|
371
|
|
|
return $this->adapter->count($this->buildFetchQueryParameters($query)); |
|
372
|
|
|
} |
|
373
|
|
|
|
|
374
|
|
|
public function doLimit($numItems) |
|
375
|
|
|
{ |
|
376
|
|
|
$this->getQueryParameters()->setLimit($numItems); |
|
377
|
|
|
|
|
378
|
|
|
return $this->wrapper; |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
public function doOffset($offset) |
|
382
|
|
|
{ |
|
383
|
|
|
$this->getQueryParameters()->setOffset($offset); |
|
384
|
|
|
|
|
385
|
|
|
return $this->wrapper; |
|
386
|
|
|
} |
|
387
|
|
|
|
|
388
|
|
|
public function doWith($model) |
|
|
|
|
|
|
389
|
|
|
{ |
|
390
|
|
|
if (!isset($this->wrapper->getDescription()->getRelationships()[$model])) { |
|
391
|
|
|
throw new ModelNotFoundException("Could not find related model [$model]"); |
|
392
|
|
|
} |
|
393
|
|
|
$relationship = $this->wrapper->getDescription()->getRelationships()[$model]; |
|
394
|
|
|
|
|
395
|
|
|
return $relationship->getQuery(); |
|
396
|
|
|
} |
|
397
|
|
|
} |
|
398
|
|
|
|
This check compares the return type specified in the
@returnannotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.