accessor.js

var Accessor = function(table){
    this.table = table; //hold Tabulator object
    this.allowedTypes = ["", "data", "download", "clipboard"] //list of accessor types
};


//initialize column accessor
Accessor.prototype.initializeColumn = function(column){
    var self = this,
    match = false,
    config = {};

    this.allowedTypes.forEach(function(type){
        var key = "accessor" + (type.charAt(0).toUpperCase() + type.slice(1)),
        accessor;

        if(column.definition[key]){
            accessor = self.lookupAccessor(column.definition[key]);

            if(accessor){
                match = true;

                config[key] = {
                    accessor:accessor,
                    params: column.definition[key + "Params"] || {},
                }
            }
        }
    });

    if(match){
        column.modules.accessor = config;
    }
},

Accessor.prototype.lookupAccessor = function(value){
    var accessor = false;

    //set column accessor
    switch(typeof value){
        case "string":
        if(this.accessors[value]){
            accessor = this.accessors[value]
        }else{
            console.warn("Accessor Error - No such accessor found, ignoring: ", value);
        }
        break;

        case "function":
        accessor = value;
        break;
    }

    return accessor;
}


//apply accessor to row
Accessor.prototype.transformRow = function(dataIn, type){
    var self = this,
    key = "accessor" + (type.charAt(0).toUpperCase() + type.slice(1));

    //clone data object with deep copy to isolate internal data from returned result
    var data = Tabulator.prototype.helpers.deepClone(dataIn || {});

    self.table.columnManager.traverse(function(column){
        var value, accessor, params, component;

        if(column.modules.accessor){

            accessor = column.modules.accessor[key] || column.modules.accessor.accessor || false;

            if(accessor){
                value = column.getFieldValue(data);

                if(value != "undefined"){
                    component = column.getComponent();
                    params = typeof accessor.params === "function" ? accessor.params(value, data, type, component) : accessor.params;
                    column.setFieldValue(data, accessor.accessor(value, data, type, params, component));
                }
            }
        }
    });

    return data;
},

//default accessors
Accessor.prototype.accessors = {};



Tabulator.prototype.registerModule("accessor", Accessor);