javascript - Use field name variable in JQuery validation rules - Stack Overflow

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I am a jquery newbie. I could get the validation rules working in my form. I am using a Java framework and for some reason, when it converts from .xhtml to .html, all the ui ponent's id/name were prefixed with the form that containing it. I would like to reuse these validation rules for two other forms but because of the prefix issue, I would need to use js variable and pass the formId to the function. For some reason, this gives me a problem:

---

NOT WORKING

var positionTitle = "#myForm:positionTitle";

$("#" + formId).validate({

  rules:{
        positionTitle : {required:true, maxlength:50},
            ...

---

WORKING

$("#" + formId).validate({

  rules:{
         "#myForm:positionTitle" : {required:true, maxlength:50},
              ...

I am a jquery newbie. I could get the validation rules working in my form. I am using a Java framework and for some reason, when it converts from .xhtml to .html, all the ui ponent's id/name were prefixed with the form that containing it. I would like to reuse these validation rules for two other forms but because of the prefix issue, I would need to use js variable and pass the formId to the function. For some reason, this gives me a problem:

---

NOT WORKING

var positionTitle = "#myForm:positionTitle";

$("#" + formId).validate({

  rules:{
        positionTitle : {required:true, maxlength:50},
            ...

---

WORKING

$("#" + formId).validate({

  rules:{
         "#myForm:positionTitle" : {required:true, maxlength:50},
              ...

• javascript
• jquery
• richfaces
• jquery-validate

Share Improve this question Follow asked Oct 1, 2010 at 13:36 blu3_ros3blu3_ros3 3311 silver badge33 bronze badges

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1 Answer 1

Sorted by: Reset to default 5

After you call .validate() on the form, you an do this:

$("[name='" + positionTitle + "']").rules("add", {required:true, maxlength:50});

...but you can't use the variable as a name in an object literal like that.

The other option is constructing the rules object before it gets passed into validate(), but that gets a bit messy as well, I can't say which is better based on the question, but if you have many of these, you may want to go the rules building route.

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