field-type.js
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field-type.js
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	var Promise = require("bluebird");
	var merge = require("merge");

	var Chip = require("./chip.js");

	/**
	* Stores field type metadata, as well as validation methods
	* @class
	*/

	function FieldType(parent_module_path, name){

	var instance = function(){};
	Chip.call(instance, parent_module_path, true, "field_type", name);

	instance.prototype = Object.create(FieldType.prototype);

	return instance;
	}

	FieldType.prototype = new function(){
	/**
	* Whether a given value can be stored in this field type instance
	* @memberOf FieldType
	* @abstract
	* @param {any} value value of this variable will be tested for compatibility with this field
	* @return {Promise}
	*/
	this.isProperValue = function(value){
	return Promise.resolve();
	}

	this.validate_declaration = function(declaration){
	return Promise.resolve();
	}

	this.encode = function(value_in_code){
	return Promise.resolve();
	}

	this.decode = function(value_in_database, formatting_options){
	return Promise.resolve();
	}

	this.set_params = function(param_map){
	if(this.params==undefined){
	this.params = param_map;
	}
	this.params = merge(this.params, param_map);
	}

	this.set_fieldname = function(fieldname){
	this.fieldname = fieldname;
	}
	}

	FieldType.is_a_constructor = true;

	FieldType.type_name = "field_type";

	module.exports = FieldType;