sql-client/lib/connection-factory.js

A dirt-simple SQL client abstraction (currently) supporting PostgreSQL, MySQL and SQLite.

// Generated by CoffeeScript 2.6.0
(function() {
  var ConnectionFactory,
    splice = [].splice;

  ConnectionFactory = class ConnectionFactory {
    constructor() {
      this.open_connection = this.open_connection.bind(this);
      this.close_connection = this.close_connection.bind(this);
      this.execute = this.execute.bind(this);
      this.pre_process_sql = this.pre_process_sql.bind(this);
    }

    open_connection(...options) {
      var callback, ref;
      ref = options, [...options] = ref, [callback] = splice.call(options, -1);
      return typeof callback === "function" ? callback(new Error("open_connection not implemented; please override")) : void 0;
    }

    close_connection(connection, callback) {
      if (typeof (connection != null ? connection.end : void 0) === 'function') {
        connection.end();
        return typeof callback === "function" ? callback() : void 0;
      } else if (typeof (connection != null ? connection.close : void 0) === 'function') {
        connection.close();
        return typeof callback === "function" ? callback() : void 0;
      } else {
        return typeof callback === "function" ? callback(new Error("close_connection not implemented; please override")) : void 0;
      }
    }

    execute(connection, sql, bindvars, callback) {
      if (typeof connection.query === 'function') {
        return connection.query(sql, bindvars, callback);
      } else {
        return callback(new Error("execute not implemented; please override"));
      }
    }

    pre_process_sql(sql, bindvars, callback) {
      return callback(null, sql, bindvars);
    }

  };

  exports.ConnectionFactory = ConnectionFactory;

}).call(this);