add support for escaping like parameters when using the query builder

Signed-off-by: Robin Appelman <robin@icewind.nl>

lib/private/DB/QueryBuilder/ExpressionBuilder/OCIExpressionBuilder.php

@@ -153,6 +153,13 @@ class OCIExpressionBuilder extends ExpressionBuilder {
 		return parent::castColumn($column, $type);
 	}
 
+	/**
+	 * @inheritdoc
+	 */
+	public function like($x, $y, $type = null) {
+		return parent::like($x, $y, $type) . " ESCAPE '\\'";
+	}
+
 	/**
 	 * @inheritdoc
 	 */

lib/private/DB/QueryBuilder/ExpressionBuilder/SqliteExpressionBuilder.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * @author Robin Appelman <robin@icewind.nl>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\DB\QueryBuilder\ExpressionBuilder;
+
+
+use OC\DB\QueryBuilder\QueryFunction;
+use OCP\DB\QueryBuilder\ILiteral;
+use OCP\DB\QueryBuilder\IParameter;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\DB\QueryBuilder\IQueryFunction;
+
+class SqliteExpressionBuilder extends ExpressionBuilder {
+	/**
+	 * @inheritdoc
+	 */
+	public function like($x, $y, $type = null) {
+		return parent::like($x, $y, $type) . " ESCAPE '\\'";
+	}
+}

lib/private/DB/QueryBuilder/QueryBuilder.php

@@ -26,11 +26,15 @@ namespace OC\DB\QueryBuilder;
 
 use Doctrine\DBAL\Platforms\MySqlPlatform;
 use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
+use Doctrine\DBAL\Platforms\SqlitePlatform;
 use OC\DB\OracleConnection;
 use OC\DB\QueryBuilder\ExpressionBuilder\ExpressionBuilder;
 use OC\DB\QueryBuilder\ExpressionBuilder\MySqlExpressionBuilder;
 use OC\DB\QueryBuilder\ExpressionBuilder\OCIExpressionBuilder;
 use OC\DB\QueryBuilder\ExpressionBuilder\PgSqlExpressionBuilder;
+use OC\DB\QueryBuilder\ExpressionBuilder\SqliteExpressionBuilder;
+use OC\DB\QueryBuilder\FunctionBuilder\FunctionBuilder;
+use OC\DB\QueryBuilder\FunctionBuilder\SqliteFunctionBuilder;
 use OC\SystemConfig;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\DB\QueryBuilder\IQueryFunction;
@@ -110,6 +114,8 @@ class QueryBuilder implements IQueryBuilder {
 			return new PgSqlExpressionBuilder($this->connection);
 		} else if ($this->connection->getDatabasePlatform() instanceof MySqlPlatform) {
 			return new MySqlExpressionBuilder($this->connection);
+		} else if ($this->connection->getDatabasePlatform() instanceof SqlitePlatform) {
+			return new SqliteExpressionBuilder($this->connection);
 		} else {
 			return new ExpressionBuilder($this->connection);
 		}

tests/lib/DB/QueryBuilder/ExpressionBuilderTest.php

@@ -352,24 +352,26 @@ class ExpressionBuilderTest extends TestCase {
 		return [
 			['eq', '5', IQueryBuilder::PARAM_STR, false, 3],
 			['eq', '5', IQueryBuilder::PARAM_STR, true, 1],
-			['neq', '5', IQueryBuilder::PARAM_STR, false, 6],
-			['neq', '5', IQueryBuilder::PARAM_STR, true, 4],
+			['neq', '5', IQueryBuilder::PARAM_STR, false, 8],
+			['neq', '5', IQueryBuilder::PARAM_STR, true, 6],
 			['lt', '5', IQueryBuilder::PARAM_STR, false, 3],
 			['lt', '5', IQueryBuilder::PARAM_STR, true, 1],
 			['lte', '5', IQueryBuilder::PARAM_STR, false, 6],
 			['lte', '5', IQueryBuilder::PARAM_STR, true, 4],
-			['gt', '5', IQueryBuilder::PARAM_STR, false, 3],
+			['gt', '5', IQueryBuilder::PARAM_STR, false, 5],
 			['gt', '5', IQueryBuilder::PARAM_STR, true, 1],
-			['gte', '5', IQueryBuilder::PARAM_STR, false, 6],
+			['gte', '5', IQueryBuilder::PARAM_STR, false, 8],
 			['gte', '5', IQueryBuilder::PARAM_STR, true, 4],
 			['like', '%5%', IQueryBuilder::PARAM_STR, false, 3],
 			['like', '%5%', IQueryBuilder::PARAM_STR, true, 1],
-			['notLike', '%5%', IQueryBuilder::PARAM_STR, false, 6],
-			['notLike', '%5%', IQueryBuilder::PARAM_STR, true, 4],
+			['like', 'under_%', IQueryBuilder::PARAM_STR, false, 2],
+			['like', 'under\_%', IQueryBuilder::PARAM_STR, false, 1],
+			['notLike', '%5%', IQueryBuilder::PARAM_STR, false, 8],
+			['notLike', '%5%', IQueryBuilder::PARAM_STR, true, 6],
 			['in', ['5'], IQueryBuilder::PARAM_STR_ARRAY, false, 3],
 			['in', ['5'], IQueryBuilder::PARAM_STR_ARRAY, true, 1],
-			['notIn', ['5'], IQueryBuilder::PARAM_STR_ARRAY, false, 6],
-			['notIn', ['5'], IQueryBuilder::PARAM_STR_ARRAY, true, 4],
+			['notIn', ['5'], IQueryBuilder::PARAM_STR_ARRAY, false, 8],
+			['notIn', ['5'], IQueryBuilder::PARAM_STR_ARRAY, true, 6],
 		];
 	}
 
@@ -392,6 +394,8 @@ class ExpressionBuilderTest extends TestCase {
 		$this->createConfig($appId, 7, 4);
 		$this->createConfig($appId, 8, 5);
 		$this->createConfig($appId, 9, 6);
+		$this->createConfig($appId, 10, 'under_score');
+		$this->createConfig($appId, 11, 'underscore');
 
 		$query = $this->connection->getQueryBuilder();
 		$query->select($query->createFunction('COUNT(*) AS `count`'))