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vendor/phpunit/dbunit/src/Database/Metadata/Firebird.php

@@ -0,0 +1,214 @@
+<?php
+/*
+ * This file is part of DbUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace PHPUnit\DbUnit\Database\Metadata;
+
+/**
+ * Provides functionality to retrieve meta data from a Firebird database.
+ */
+class Firebird extends AbstractMetadata
+{
+    /**
+     * The command used to perform a TRUNCATE operation.
+     *
+     * @var string
+     */
+    protected $truncateCommand = 'DELETE FROM';
+
+    /**
+     * Returns an array containing the names of all the tables in the database.
+     *
+     * @return array
+     */
+    public function getTableNames()
+    {
+        $query = "
+            SELECT DISTINCT
+                TABLE_NAME
+            FROM INFORMATION_SCHEMA.TABLES
+            WHERE
+                TABLE_TYPE='BASE TABLE' AND
+                TABLE_SCHEMA = ?
+            ORDER BY TABLE_NAME
+        ";
+
+        $query = "
+            select
+              RDB$RELATION_NAME as TABLE_NAME
+            from RDB$RELATIONS
+            where
+              ((RDB$RELATION_TYPE = 0) or
+               (RDB$RELATION_TYPE is null)) and
+              (RDB$SYSTEM_FLAG = 0)
+            order by (RDB$RELATION_NAME)
+        ";
+
+        $statement = $this->pdo->prepare($query);
+        $statement->execute([$this->getSchema()]);
+
+        $tableNames = [];
+        while ($tableName = $statement->fetchColumn(0)) {
+            $tableNames[] = $tableName;
+        }
+
+        return $tableNames;
+    }
+
+    /**
+     * Returns an array containing the names of all the columns in the
+     * $tableName table,
+     *
+     * @param string $tableName
+     *
+     * @return array
+     */
+    public function getTableColumns($tableName)
+    {
+        if (!isset($this->columns[$tableName])) {
+            $this->loadColumnInfo($tableName);
+        }
+
+        return $this->columns[$tableName];
+    }
+
+    /**
+     * Returns an array containing the names of all the primary key columns in
+     * the $tableName table.
+     *
+     * @param string $tableName
+     *
+     * @return array
+     */
+    public function getTablePrimaryKeys($tableName)
+    {
+        if (!isset($this->keys[$tableName])) {
+            $this->loadColumnInfo($tableName);
+        }
+
+        return $this->keys[$tableName];
+    }
+
+    /**
+     * Loads column info from a database table.
+     *
+     * @param string $tableName
+     */
+    protected function loadColumnInfo($tableName)
+    {
+        $this->columns[$tableName] = [];
+        $this->keys[$tableName] = [];
+
+        $columnQuery = '
+            SELECT DISTINCT
+                COLUMN_NAME, ORDINAL_POSITION
+            FROM INFORMATION_SCHEMA.COLUMNS
+            WHERE
+                TABLE_NAME = ? AND
+                TABLE_SCHEMA = ?
+            ORDER BY ORDINAL_POSITION
+        ';
+
+        $columnQuery = '
+            select
+              rf.RDB$FIELD_NAME as COLUMN_NAME,
+              rf.RDB$FIELD_POSITION as ORDINAL_POSITION
+            from RDB$RELATION_FIELDS as rf
+            where
+              upper(RDB$RELATION_NAME) = upper(?)
+            order by
+              ORDINAL_POSITION
+
+        ';
+
+        $columnStatement = $this->pdo->prepare($columnQuery);
+        $columnStatement->execute([$tableName]);
+
+        while ($columName = $columnStatement->fetchColumn(0)) {
+            $this->columns[$tableName][] = $columName;
+        }
+
+        $keyQuery = "
+            SELECT
+                KCU.COLUMN_NAME,
+                KCU.ORDINAL_POSITION
+            FROM
+                INFORMATION_SCHEMA.KEY_COLUMN_USAGE as KCU
+            LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS as TC
+                ON TC.TABLE_NAME = KCU.TABLE_NAME
+            WHERE
+                TC.CONSTRAINT_TYPE = 'PRIMARY KEY' AND
+                TC.TABLE_NAME = ? AND
+                TC.TABLE_SCHEMA = ?
+            ORDER BY
+                KCU.ORDINAL_POSITION ASC
+        ";
+
+        $keyQuery = "
+            select
+              idseg.rdb\$field_name as COLUMN_NAME,
+              idseg.rdb\$field_position as ORDINAL_POSITION,
+              rc.rdb\$relation_name as tablename,
+              rc.rdb\$constraint_name as pk_name
+            from
+              RDB\$RELATION_CONSTRAINTS AS rc
+                left join
+              rdb\$index_segments as idseg on
+                (rc.rdb\$index_name = idseg.rdb\$index_name)
+            where
+              rc.RDB\$CONSTRAINT_TYPE = 'PRIMARY KEY'
+              and upper(rc.RDB\$RELATION_NAME) = upper(?)
+            order by
+              rc.rdb\$constraint_name, idseg.rdb\$field_position
+        ";
+
+        $keyStatement = $this->pdo->prepare($keyQuery);
+        $keyStatement->execute([$tableName]);
+
+        while ($columName = $keyStatement->fetchColumn(0)) {
+            $this->keys[$tableName][] = $columName;
+        }
+    }
+
+    /**
+     * Returns the schema for the connection.
+     *
+     * @return string
+     */
+    public function getSchema()
+    {
+        if (empty($this->schema)) {
+            return 'public';
+        } else {
+            return $this->schema;
+        }
+    }
+
+    /**
+     * Returns true if the rdbms allows cascading
+     *
+     * @return bool
+     */
+    public function allowsCascading()
+    {
+        return false;
+    }
+
+    /**
+     * Returns a quoted schema object. (table name, column name, etc)
+     *
+     * @param string $object
+     *
+     * @return string
+     */
+    public function quoteSchemaObject($object)
+    {
+        return $object; //firebird does not allow object quoting
+    }
+}