added mariadb driver

Author: Umed Khudoiberdiev

config/parameters.json

@@ -14,6 +14,20 @@
       "password": "admin",
       "database": "test2"
     },
+    "mariadb": {
+      "host": "192.168.99.100",
+      "port": 3307,
+      "username": "root",
+      "password": "admin",
+      "database": "test"
+    },
+    "mariadbSecondary": {
+      "host": "192.168.99.100",
+      "port": 3307,
+      "username": "root",
+      "password": "admin",
+      "database": "test2"
+    },
     "postgres": {
       "host": "192.168.99.100",
       "port": 5432,

package.json

@@ -41,6 +41,7 @@
     "gulp-tslint": "^6.0.2",
     "gulp-typescript": "^2.13.6",
     "gulpclass": "0.1.1",
+    "mariasql": "^0.2.6",
     "mocha": "^3.0.1",
     "mysql": "^2.11.1",
     "pg": "^6.0.3",

src/connection/ConnectionManager.ts

@@ -8,6 +8,7 @@ import {MissingDriverError} from "./error/MissingDriverError";
 import {PostgresDriver} from "../driver/postgres/PostgresDriver";
 import {AlreadyHasActiveConnectionError} from "./error/AlreadyHasActiveConnectionError";
 import {Logger} from "../logger/Logger";
+import {MariaDbDriver} from "../driver/mariadb/MariaDbDriver";
 
 /**
  * Connection manager holds all connections made to the databases and providers helper management functions 
@@ -117,6 +118,8 @@ export class ConnectionManager {
                 return new MysqlDriver(options, logger);
             case "postgres":
                 return new PostgresDriver(options, logger);
+            case "mariadb":
+                return new MariaDbDriver(options, logger);
             default:
                 throw new MissingDriverError(options.type);
         }

src/driver/Driver.ts

@@ -2,6 +2,7 @@ import {DriverOptions} from "./DriverOptions";
 import {QueryRunner} from "./QueryRunner";
 import {ColumnMetadata} from "../metadata/ColumnMetadata";
 import {ObjectLiteral} from "../common/ObjectLiteral";
+import {ColumnType} from "../metadata/types/ColumnTypes";
 
 /**
  * Driver organizes TypeORM communication with specific database management system.
@@ -62,8 +63,14 @@ export interface Driver {
     preparePersistentValue(value: any, column: ColumnMetadata): any;
 
     /**
-     * Prepares given value to a value to be hydrated, based on its column type and metadata.
+     * Prepares given value to a value to be persisted, based on its column metadata.
+     */
+    prepareHydratedValue(value: any, type: ColumnType): any;
+
+    /**
+     * Prepares given value to a value to be persisted, based on its column type.
      */
     prepareHydratedValue(value: any, column: ColumnMetadata): any;
 
+
 }

src/driver/DriverOptions.ts

@@ -6,7 +6,7 @@ export interface DriverOptions {
     /**
      * Database type. Mysql and postgres are the only drivers supported at this moment.
      */
-    readonly type: "mysql"|"postgres";
+    readonly type: "mysql"|"postgres"|"mariadb";
 
     /**
      * Url to where perform connection.

src/driver/QueryRunner.ts

@@ -55,7 +55,7 @@ export interface QueryRunner {
     /**
      * Inserts a new row into given table.
      */
-    insert(tableName: string, valuesMap: Object, idColumnName?: string): Promise<any>;
+    insert(tableName: string, valuesMap: Object, idColumn?: ColumnMetadata): Promise<any>;
 
     /**
      * Performs a simple DELETE query by a given conditions in a given table.

src/driver/error/DriverPoolingNotSupportedError.ts

@@ -0,0 +1,14 @@
+/**
+ * Thrown if database driver does not support pooling.
+ *
+ * @internal
+ */
+export class DriverPoolingNotSupportedError extends Error {
+    name = "DriverPoolingNotSupportedError";
+
+    constructor(driverName: string) {
+        super();
+        this.message = `Connection pooling is not supported by (${driverName}) driver.`;
+    }
+
+}