/*!
* CanJS - 1.1.5 (2013-03-27)
* http://canjs.us/
* Copyright (c) 2013 Bitovi
* Licensed MIT
*/
(function (can, window, undefined) {/*!
* CanJS - 1.1.5 (2013-03-27)
* http://canjs.us/
* Copyright (c) 2013 Bitovi
* Licensed MIT
*/
(function (can, window, undefined) {validations object is by property. You can have validations that span properties, but this way we know which ones to run. proc should return true if there's an error or the error message
var validate = function (attrNames, options, proc) {normalize argumetns
if (!proc) {
proc = options;
options = {};
}
options = options || {};
attrNames = can.makeArray(attrNames)run testIf if it exists
if (options.testIf && !options.testIf.call(this)) {
return;
}
var self = this;
can.each(attrNames, function (attrName) {Add a test function for each attribute
if (!self.validations[attrName]) {
self.validations[attrName] = [];
}
self.validations[attrName].push(function (newVal) {if options has a message return that, otherwise, return the error
var res = proc.call(this, newVal, attrName);
return res === undefined ? undefined : (options.message || res);
})
});
};
var old = can.Observe.prototype.__set;
can.Observe.prototype.__set = function (prop, value, current, success, error) {
var self = this,
validations = self.constructor.validations,
errorCallback = function (errors) {
var stub = error && error.call(self, errors);if 'setter' is on the page it will trigger the error itself and we dont want to trigger the event twice. :)
if (stub !== false) {
can.trigger(self, "error", [prop, errors], true);
}
return false;
};
old.call(self, prop, value, current, success, errorCallback);
if (validations && validations[prop]) {
var errors = self.errors(prop);
errors && errorCallback(errors)
}
return this;
}
can.each([can.Observe, can.Model], function (clss) {in some cases model might not be defined quite yet.
if (clss === undefined) {
return;
}
var oldSetup = clss.setup;
can.extend(clss, {
setup: function (superClass) {
oldSetup.apply(this, arguments);
if (!this.validations || superClass.validations === this.validations) {
this.validations = {};
}
},
validate: validate,
validationMessages: {
format: "is invalid",
inclusion: "is not a valid option (perhaps out of range)",
lengthShort: "is too short",
lengthLong: "is too long",
presence: "can't be empty",
range: "is out of range"
},
validateFormatOf: function (attrNames, regexp, options) {
validate.call(this, attrNames, options, function (value) {
if ((typeof value !== 'undefined' && value !== null && value !== '') && String(value).match(regexp) == null) {
return this.constructor.validationMessages.format;
}
});
},
validateInclusionOf: function (attrNames, inArray, options) {
validate.call(this, attrNames, options, function (value) {
if (typeof value == 'undefined') {
return;
}
if (can.grep(inArray, function (elm) {
return (elm == value);
}).length == 0) {
return this.constructor.validationMessages.inclusion;
}
});
},
validateLengthOf: function (attrNames, min, max, options) {
validate.call(this, attrNames, options, function (value) {
if (((typeof value === 'undefined' || value === null) && min > 0) || (typeof value !== 'undefined' && value !== null && value.length < min)) {
return this.constructor.validationMessages.lengthShort + " (min=" + min + ")";
} else if (typeof value != 'undefined' && value !== null && value.length > max) {
return this.constructor.validationMessages.lengthLong + " (max=" + max + ")";
}
});
},
validatePresenceOf: function (attrNames, options) {
validate.call(this, attrNames, options, function (value) {
if (typeof value == 'undefined' || value === "" || value === null) {
return this.constructor.validationMessages.presence;
}
});
},
validateRangeOf: function (attrNames, low, hi, options) {
validate.call(this, attrNames, options, function (value) {
if (((typeof value == 'undefined' || value === null) && low > 0) || (typeof value !== 'undefined' && value !== null && (value < low || value > hi))) {
return this.constructor.validationMessages.range + " [" + low + "," + hi + "]";
}
});
}
});
});
can.extend(can.Observe.prototype, {
errors: function (attrs, newVal) {convert attrs to an array
if (attrs) {
attrs = can.isArray(attrs) ? attrs : [attrs];
}
var errors = {},
self = this,
attr,helper function that adds error messages to errors object attr - the name of the attribute funcs - the validation functions
addErrors = function (attr, funcs) {
can.each(funcs, function (func) {
var res = func.call(self, isTest ? (self.__convert ? self.__convert(attr, newVal) : newVal) : self[attr]);
if (res) {
if (!errors[attr]) {
errors[attr] = [];
}
errors[attr].push(res);
}
});
},
validations = this.constructor.validations,
isTest = attrs && attrs.length === 1 && arguments.length === 2;go through each attribute or validation and add any errors
can.each(attrs || validations || {}, function (funcs, attr) {if we are iterating through an array, use funcs as the attr name
if (typeof attr == 'number') {
attr = funcs;
funcs = validations[attr];
}add errors to the
addErrors(attr, funcs || []);
});return errors as long as we have one
return can.isEmptyObject(errors) ? null : isTest ? errors[attrs[0]] : errors;
}
});
})(can, this);