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jQuery validation - required working but accept not

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伪装坚强ぢ
伪装坚强ぢ 2021-01-05 17:33

im uploading an image and trying to validate it before with jquery. Here is my code:
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3条回答
  • 悲&欢浪女
    2021-01-05 18:03

    The documentation states that the accept rule only accepts mime-types as an argument.

    If you wanted to accept all images then use image/*.

    If you want to accept only specific image types then you can specify multiple mime-types by separating them with a comma, e.g. image/pjpeg,image/jpeg,image/png,image/gif.

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  • 渐次进展
    2021-01-05 18:05

    You need two things.

    (1) use valid syntax for using accept method because it requires you to use to provide comma-separated list of mimetypes. 

    $(document).ready(function(){
    $("#form").validate({
        errorLabelContainer: "#message_box", wrapper: "li",

        rules: {
            image: {required: true, accept: "image/jpg,image/jpeg,image/png,image/gif"}
        },
        messages: {
            image: {required: 'Required!', accept: 'Not an image!'}
        }
    })
});

    (2) You'll have to include the additional-methods.js because the accept methods is not included in the core validate plugin. So add following to your <head> after you include validate plugin 

    <script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/additional-methods.min.js"></script>

    Here's the link to jsfiddle. Note that it includes debug: true to prevent posting of the form in fiddle.

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  • 无人及你
    2021-01-05 18:06

    1) As already stated, you need to include the additional-methods.js file.

    2) For file extensions, use the extension rule. The accept rule is for mime types.

    $(document).ready(function(){

    $("#form").validate({
        errorLabelContainer: "#message_box", wrapper: "li",
        rules: {
            image: {
                required: true,
                extension: "jpg|jpeg|png|gif"
            }
        },
        ...
    })

});
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