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(function(jsGrid, $, undefined) {
function Validation(config) {
this._init(config);
}
Validation.prototype = {
_init: function(config) {
$.extend(true, this, config);
},
validate: function(args) {
var errors = [];
$.each(this._normalizeRules(args.rules), function(_, rule) {
if(rule.validator(args.value, args.item, rule.param))
return;
var errorMessage = $.isFunction(rule.message) ? rule.message(args.value, args.item) : rule.message;
errors.push(errorMessage);
});
return errors;
},
_normalizeRules: function(rules) {
if(!$.isArray(rules))
rules = [rules];
return $.map(rules, $.proxy(function(rule) {
return this._normalizeRule(rule);
}, this));
},
_normalizeRule: function(rule) {
if(typeof rule === "string")
rule = { validator: rule };
if($.isFunction(rule))
rule = { validator: rule };
if($.isPlainObject(rule))
rule = $.extend({}, rule);
else
throw Error("wrong validation config specified");
if($.isFunction(rule.validator))
return rule;
return this._applyNamedValidator(rule, rule.validator);
},
_applyNamedValidator: function(rule, validatorName) {
delete rule.validator;
var validator = validators[validatorName];
if(!validator)
throw Error("unknown validator \"" + validatorName + "\"");
if($.isFunction(validator)) {
validator = { validator: validator };
}
return $.extend({}, validator, rule);
}
};
jsGrid.Validation = Validation;
var validators = {
required: {
message: "Field is required",
validator: function(value) {
return value !== undefined && value !== null && value !== "";
}
},
rangeLength: {
message: "Field value length is out of the defined range",
validator: function(value, _, param) {
return value.length >= param[0] && value.length <= param[1];
}
},
minLength: {
message: "Field value is too short",
validator: function(value, _, param) {
return value.length >= param;
}
},
maxLength: {
message: "Field value is too long",
validator: function(value, _, param) {
return value.length <= param;
}
},
pattern: {
message: "Field value is not matching the defined pattern",
validator: function(value, _, param) {
if(typeof param === "string") {
param = new RegExp("^(?:" + param + ")$");
}
return param.test(value);
}
},
range: {
message: "Field value is out of the defined range",
validator: function(value, _, param) {
return value >= param[0] && value <= param[1];
}
},
min: {
message: "Field value is too small",
validator: function(value, _, param) {
return value >= param;
}
},
max: {
message: "Field value is too large",
validator: function(value, _, param) {
return value <= param;
}
}
};
jsGrid.validators = validators;
}(jsGrid, jQuery));