Completed
Push — master ( adc131...6e9eb4 )
by Kevin
03:32
created

DBFakerSchemaManager::__construct()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 3
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
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<?php
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/**
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 * Created by PhpStorm.
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 * User: kevin
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 * Date: 26/06/18
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 * Time: 18:21
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 */
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namespace DBFaker\Helpers;
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use DBFaker\Exceptions\SchemaLogicException;
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use Doctrine\DBAL\Schema\AbstractSchemaManager;
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use Doctrine\DBAL\Schema\Column;
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use Doctrine\DBAL\Schema\Table;
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class DBFakerSchemaManager
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{
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    /**
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     * @var mixed[]
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     */
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    private $foreignKeyMappings;
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    /**
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     * @var AbstractSchemaManager
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     */
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    private $schemaManager;
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    /**
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     * DBFakerSchemaManager constructor.
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     * @param AbstractSchemaManager $schemaManager
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     */
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    public function __construct(AbstractSchemaManager $schemaManager)
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    {
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        $this->schemaManager = $schemaManager;
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    }
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    /**
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     * @param Table $table
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     * @param Column $column
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     * @return Column
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     * @throws \DBFaker\Exceptions\SchemaLogicException
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     * @throws \Doctrine\DBAL\Schema\SchemaException
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     */
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    public function getForeignColumn(Table $table, Column $column) : Column
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    {
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        if (isset($this->foreignKeyMappings[$table->getName()][$column->getName()])){
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            return $this->foreignKeyMappings[$table->getName()][$column->getName()]["column"];
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        }
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        $lookupColumn = null;
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        $foreignKeys = $table->getForeignKeys();
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        foreach ($foreignKeys as $foreignKeyConstraint){
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            $localColumns = $foreignKeyConstraint->getLocalColumns();
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            $foreignColumns = $foreignKeyConstraint->getForeignColumns();
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            $foreignTable = $this->schemaManager->listTableDetails($foreignKeyConstraint->getForeignTableName());
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            foreach ($localColumns as $index => $localColumn){
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                $foreignColumn = $foreignColumns[$index];
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                $this->foreignKeyMappings[$table->getName()][$localColumn] = ["table" => $foreignTable, "column" => $foreignTable->getColumn($foreignColumn)];
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                if ($localColumn === $column->getName()){
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                    $lookupColumn = $foreignTable->getColumn($foreignColumn);
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                }
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            }
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        }
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        if (!$lookupColumn){
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$lookupColumn is of type null, thus it always evaluated to false.
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            throw new SchemaLogicException("Could not find foreign column for local column '".$table->getName().".".$column->getName()."'");
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        }
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        return $lookupColumn;
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    }
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}