Source: base/plugin/Filter.js

// Copyright 2011 Tart. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * @fileoverview tart.base.plugin.Filter model filter plugin.
 */

goog.provide('tart.base.plugin.Filter');

goog.require('tart.base.plugin.BasePlugin');


/**
 * @param {tart.base.Model} model
 *
 * @extends {tart.base.plugin.BasePlugin}
 * @constructor
 */
tart.base.plugin.Filter = function (model) {
    goog.base(this, model);
};
goog.inherits(tart.base.plugin.Filter, tart.base.plugin.BasePlugin);

/**
 * Set plugins param key
 */
tart.base.plugin.Filter.prototype.key = "filterParams";



/**
 * @param {string} field field to be filtereded.
 * @param {string} condition condition operator.
 * @param {string} value field value to filter field for.
 */
tart.base.plugin.Filter.prototype.addFilter = function (field, condition, value) {

    /**
     * There can be multiple condition-value pair for a field
     */
    var fieldFilter = this.map.get(field);

    //and if this field did not set before create a new object
    if (!fieldFilter) {
        fieldFilter = {};
    }

    fieldFilter[condition] = value;

    this.map.set(field, fieldFilter);
};