Adding service to keep track of note resources associations

ReactNativeClient/lib/models/NoteResource.js

@@ -0,0 +1,32 @@
+const BaseModel = require('lib/BaseModel.js');
+
+class NoteResource extends BaseModel {
+
+	static tableName() {
+		return 'note_resources';
+	}
+
+	static modelType() {
+		return BaseModel.TYPE_NOTE_RESOURCE;
+	}
+
+	static async associate(noteId, resourceIds) {
+		let queries = [];
+		queries.push({ sql: 'DELETE FROM note_resources WHERE note_id = ?', params: [noteId] });
+
+		for (let i = 0; i < resourceIds.length; i++) {
+			queries.push({ sql: 'INSERT INTO note_resources (note_id, resource_id) VALUES (?, ?)', params: [noteId, resourceIds[i]] });
+		}
+
+		await this.db().transactionExecBatch(queries);
+	}
+
+	static async remove(noteId) {
+		let queries = [];
+		queries.push({ sql: 'DELETE FROM note_resources WHERE note_id = ?', params: [noteId] });
+		await this.db().transactionExecBatch(queries);
+	}
+
+}
+
+module.exports = NoteResource;