can
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MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.
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JavaScript
/*!
* CanJS - 2.3.34
* http://canjs.com/
* Copyright (c) 2018 Bitovi
* Mon, 30 Apr 2018 20:56:51 GMT
* Licensed MIT
*/
/*can@2.3.34#map/validations/validations*/
var can = require('../../util/util.js');
require('../map.js');
var validate = function (attrNames, options, proc) {
if (!proc) {
proc = options;
options = {};
}
options = options || {};
attrNames = typeof attrNames === 'string' ? [attrNames] : can.makeArray(attrNames);
if (options.testIf && !options.testIf.call(this)) {
return;
}
var self = this;
can.each(attrNames, function (attrName) {
if (!self.validations[attrName]) {
self.validations[attrName] = [];
}
self.validations[attrName].push(function (newVal) {
var res = proc.call(this, newVal, attrName);
return res === undefined ? undefined : options.message || res;
});
});
};
var old = can.Map.prototype.__set;
can.Map.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 (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);
if (errors) {
errorCallback(errors);
}
}
return this;
};
can.each([
can.Map,
can.Model
], function (clss) {
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',
numericality: 'must be a number'
},
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;
}
for (var i = 0; i < inArray.length; i++) {
if (inArray[i] === value) {
return;
}
}
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 + ']';
}
});
},
validatesNumericalityOf: function (attrNames) {
validate.call(this, attrNames, function (value) {
var res = !isNaN(parseFloat(value)) && isFinite(value);
if (!res) {
return this.constructor.validationMessages.numericality;
}
});
}
});
});
can.extend(can.Map.prototype, {
errors: function (attrs, newVal) {
if (attrs) {
attrs = can.isArray(attrs) ? attrs : [attrs];
}
var errors = {}, self = this, addErrors = function (attr, funcs) {
can.each(funcs, function (func) {
var res = func.call(self, isTest ? newVal : self.attr(attr));
if (res) {
if (!errors[attr]) {
errors[attr] = [];
}
errors[attr].push(res);
}
});
}, validations = this.constructor.validations || {}, isTest = attrs && attrs.length === 1 && arguments.length === 2;
can.each(attrs || validations, function (funcs, attr) {
if (typeof attr === 'number') {
attr = funcs;
funcs = validations[attr];
}
addErrors(attr, funcs || []);
});
return can.isEmptyObject(errors) ? null : isTest ? errors[attrs[0]] : errors;
}
});
module.exports = can.Map;