Ability to prefix tables

Will fix #799

src/Wallabag/CoreBundle/Doctrine/Mapping/PrefixedNamingStrategy.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace Wallabag\CoreBundle\Doctrine\Mapping;
+
+use Doctrine\ORM\Mapping\NamingStrategy;
+
+/**
+ * Puts a prefix to each table.
+ *
+ * Solution from :
+ *      - http://stackoverflow.com/a/23860613/569101
+ *      - http://doctrine-orm.readthedocs.org/en/latest/reference/namingstrategy.html
+ */
+class PrefixedNamingStrategy implements NamingStrategy
+{
+    protected $prefix = '';
+
+    public function __construct($prefix)
+    {
+        $this->prefix = (string) $prefix;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function classToTableName($className)
+    {
+        return strtolower($this->prefix . substr($className, strrpos($className, '\\') + 1));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function propertyToColumnName($propertyName, $className = null)
+    {
+        return $propertyName;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function referenceColumnName()
+    {
+        return 'id';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function joinColumnName($propertyName)
+    {
+        return $propertyName . '_' . $this->referenceColumnName();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function joinTableName($sourceEntity, $targetEntity, $propertyName = null)
+    {
+        // for join table we don't want to have both table concatenated AND prefixed
+        // we just want the whole table to prefixed once
+        // ie: not "wallabag_entry_wallabag_tag" but "wallabag_entry_tag"
+        $target = substr($targetEntity, strrpos($targetEntity, '\\') + 1);
+
+        return strtolower($this->classToTableName($sourceEntity) . '_' .$target);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function joinKeyColumnName($entityName, $referencedColumnName = null)
+    {
+        return strtolower($this->classToTableName($entityName) . '_' .($referencedColumnName ?: $this->referenceColumnName()));
+    }
+}