Overview

Namespaces

  • LeanMapper
    • Bridges
      • Nette
        • DI
    • Exception
    • Reflection
    • Relationship

Classes

  • LeanMapper\Bridges\Nette\DI\LeanMapperExtension
  • LeanMapper\Caller
  • LeanMapper\Connection
  • LeanMapper\DataDifference
  • LeanMapper\DefaultEntityFactory
  • LeanMapper\DefaultEntityReflectionProvider
  • LeanMapper\DefaultMapper
  • LeanMapper\Entity
  • LeanMapper\EntityDataDecoder
  • LeanMapper\Events
  • LeanMapper\Filtering
  • LeanMapper\FilteringResult
  • LeanMapper\FilteringResultDecorator
  • LeanMapper\Fluent
  • LeanMapper\ImplicitFilters
  • LeanMapper\Reflection\Aliases
  • LeanMapper\Reflection\AliasesBuilder
  • LeanMapper\Reflection\AliasesParser
  • LeanMapper\Reflection\AnnotationsParser
  • LeanMapper\Reflection\EntityReflection
  • LeanMapper\Reflection\Property
  • LeanMapper\Reflection\PropertyFactory
  • LeanMapper\Reflection\PropertyFilters
  • LeanMapper\Reflection\PropertyMethods
  • LeanMapper\Reflection\PropertyPasses
  • LeanMapper\Reflection\PropertyType
  • LeanMapper\Reflection\PropertyValuesEnum
  • LeanMapper\Relationship\BelongsTo
  • LeanMapper\Relationship\BelongsToMany
  • LeanMapper\Relationship\BelongsToOne
  • LeanMapper\Relationship\HasMany
  • LeanMapper\Relationship\HasOne
  • LeanMapper\Repository
  • LeanMapper\Result
  • LeanMapper\ResultProxy
  • LeanMapper\Row

Interfaces

  • LeanMapper\IEntityFactory
  • LeanMapper\IEntityReflectionProvider
  • LeanMapper\IMapper

Exceptions

  • LeanMapper\Exception\Exception
  • LeanMapper\Exception\InvalidAnnotationException
  • LeanMapper\Exception\InvalidArgumentException
  • LeanMapper\Exception\InvalidMethodCallException
  • LeanMapper\Exception\InvalidStateException
  • LeanMapper\Exception\InvalidValueException
  • LeanMapper\Exception\MemberAccessException
  • LeanMapper\Exception\UtilityClassException
  • Overview
  • Namespace
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<?php

/**
 * This file is part of the Lean Mapper library (http://www.leanmapper.com)
 *
 * Copyright (c) 2013 Vojtěch Kohout (aka Tharos)
 *
 * For the full copyright and license information, please view the file
 * license.md that was distributed with this source code.
 */

namespace LeanMapper;

use LeanMapper\Exception\InvalidArgumentException;

/**
 * Represents changes in M:N relationship
 *
 * @author Vojtěch Kohout
 */
class DataDifference
{

    /** @var array */
    private $added;

    /** @var array */
    private $removed;



    /**
     * @param array $added
     * @param array $removed
     */
    public function __construct(array $added, array $removed)
    {
        $this->added = $added;
        $this->removed = $removed;
    }



    /**
     * Performs quick lookup whether current instance may have any differences
     *
     * @return bool
     */
    public function mayHaveAny()
    {
        return !empty($this->added) or !empty($this->removed);
    }



    /**
     * Gets differences by given pivot
     *
     * @param mixed $pivot
     * @return array
     * @throws InvalidArgumentException
     */
    public function getByPivot($pivot)
    {
        $result = [];
        foreach ($this->added as $entry) {
            if (!isset($entry[$pivot])) {
                throw new InvalidArgumentException("Invalid pivot given: '$pivot'.");
            }
            if (isset($result[$entry[$pivot]])) {
                $result[$entry[$pivot]]++;
            } else {
                $result[$entry[$pivot]] = 1;
            }
        }
        foreach ($this->removed as $entry) {
            if (!isset($entry[$pivot])) {
                throw new InvalidArgumentException("Invalid pivot given: '$pivot'.");
            }
            if (isset($result[$entry[$pivot]])) {
                $result[$entry[$pivot]]--;
                if ($result[$entry[$pivot]] === 0) {
                    unset($result[$entry[$pivot]]);
                }
            } else {
                $result[$entry[$pivot]] = -1;
            }
        }
        return $result;
    }

}
tharos/leanmapper v3.4.1 API documentation API documentation generated by ApiGen