I need to validate form on client-side and I was wondering if there is a rails plugin which will help me in this task? Maybe it will build javascript needed to validate certain model from ActiveRecord validations?
A:
No you have to write your own javascript to validate the form.
You can apply some validation such as "field can't be blank" or "minimum characters required should be 6" or "value should be valid integer" on client side but how do you validate "Username should be unique" etc on client side?
Also You should validate your model on Serverside although you are applying Client Side Validations because User may Submit the Form by disabling javascript of Browser.
Salil
2010-05-17 13:25:46
Not very helpful. Username uniqueness can be easily tested using Ajax request. And it is a bit silly to rely on client-side validation, such validation will just make validation response faster.
tig
2010-05-17 13:48:13
do you mean Ajax Validations are Client Side Vaidations?If yes you are Wrong.
Salil
2010-05-17 14:03:56
@tig: actually making validation response faster is the only goal you should aim for with client-side validation - and this is not silly, this is improving UI usability. Really checking things on the client is of secondary importance, cause it can be circumvented easily.
neutrino
2010-05-17 14:04:49
+1
A:
Hi tig,
validation from client side you have 2 options
1 - using pure javascripts (but you will not be able to validate somethings like 'uniqueness' which requires database support)
2 - Using Ajax do your validations from the back end You may use something like Ajax.Updater to show green color tick or red cross upon validations
And If you want to use ActiveRecord validations I would recommend 'livevalidation' plugin http://github.com/porras/livevalidation.git
hope this helps
cheers sameera
sameera207
2010-05-17 17:22:32