我应该如何处理看起来像这样的物体

时间:2012-08-29 09:44:42

标签: javascript jquery underscore.js

我需要在表单中显示错误。

如果在子节点中定义了错误,则可以将错误附加到输入名称表单,这是常见情况(1)。

但可能会发生错误在json对象(2)的根节点中定义 在这种情况下,它应该附加到formElement。

以下代码(3)适用于案例(1)但不适用于案例(2)。

如何修改它以使其在两种情况下都能正常工作? P.S。:我正在使用下划线和jquery。


(1)

var xhrObj_1 = JSON.parse('{ "children":{"points":{"errors":["This value should not be blank."]},"message":[],"recipient_id":{"errors":["This value should not be blank."]}}}');

(2)

var xhrObj_2 = JSON.parse('{ "errors":["This form should not be …."], "children":{"points":{"errors":["This value should not be blank."]},"message":[],"recipient_id":{"errors":["This value should not be blank."]}}}');

(3)

var parser = function (object) {
    _.each(object, function (xhrObject, name) {
        console.log(xhrObject)

        if (xhrObject.errors) {
            var inputElement = element.find('[name="' + name + '"]');

            inputElement.closest('.control-group')
                .addClass('error');

            parserError(xhrObject.errors, inputElement);

        } else {
            parser(xhrObject); // it is ok for xhrObj_1
                               // it fails for xhrObj_2
        }
    });
};

// example with xhrObj_2 which does not work
parser({
    "errors": ["errro1"],
    "children": {
        "points": {
            "errors": ["This value should not be blank."]
        },
        "message": [],
        "recipient_id": {
            "errors": ["This value should not be blank."]
        }
    }
});

1 个答案:

答案 0 :(得分:0)

你应该在顶级开始递归:

var xhr = JSON.parse("…");

(function recurse(obj, name) {
    if (obj.errors) {
        var inputElement = element.find('[name="' + name + '"]');
        inputElement.closest('.control-group').addClass('error');
        parserError(obj.errors, inputElement);
    }
    if ("children" in obj)
        for (var prop in obj.children)
            recurse(obj.children[prop], prop);
})(xhr, "top");