Change html form id generated by form_for rails 3.1
Solution 1
Adding on to what miked said, the easiest way to make unique form id's for the posts would be to use the post's id numbers in the id attribute, like so:
<%= form_for [post, Comment.new,], :remote => true, :html => { :id => "new_comment_on_#{post.id}" } do |f| %>
Solution 2
I think the :namespace
option is what you're looking for.
It appends the name to the form's id as well as all input and label fields.
e.g
<%= form_for [post, Comment.new,], namespace: 'NAMESPACE', :remote => true do |f| %>
<%= f.text_area :content, :cols =>10, :rows => 1%>
<% end %>
Would generate:
Form id = NAMESPACE_new_comment
Textarea id = NAMESPACE_comment_content
From the docs:
:namespace - A namespace for your form to ensure uniqueness of id attributes on form elements. The namespace attribute will be prefixed with underscore on the generated HTML id
Solution 3
You should be able to set the form's id to whatever you want. Something like:
<%= form_for @object, :html=> {:id => 'custom_form_id'} do |f| %>
hyperrjas
Code Lover Ror, Nodejs, React/Redux, Mongodb/Mysql/GraphQl
Updated on October 17, 2020Comments
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hyperrjas over 3 years
I have this form_for:
<%= form_for [post, Comment.new,], :remote => true do |f| %> <%= f.text_area :content, :cols =>10, :rows => 1%> <% end %> <%= f.submit :class => "input_comment" %>
That generate the next code html:
<form method="post" id="new_comment" data-remote="true" class="new_comment" action="/post/4efcda9e1d41c82486000077/comments" accept-charset="UTF-8"><div style="margin:0;padding:0;display:inline"><input type="hidden" value="✓" name="utf8"> <input type="hidden" value="ctVfDF/O4FIR91I7bC5MVezQmutOCkX3dcXe73uNPZY=" name="authenticity_token"> <textarea rows="1" name="comment[content]" id="comment_content" cols="10"></textarea> <input type="submit" value="Create Comment" name="commit" class="input_comment"> </form>
If I have many forms in a same page is not a html valid with the same id.
- The id for form_for generate id="new_comment"
- The id for textarea generate id="comment_content"
With so many forms in a same page is not valid html.
How can I change the id autogenerate by form_for method helper from rails 3.1?
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hyperrjas over 12 yearsFor text-area or button, field...etc like so
:id => "text_#{post.id}"
for example. -
Batkins over 12 yearsYou would do the same thing, but with a
text_area
it's unecessarry to pass it in within:html => {}
. As in<%= f.text_area :content, :cols =>10, :rows => 1, :id => "comment_on_#{post.id}_content" %>
. Check the docs for the text_area form helper for rails. -
Adam Waite about 11 yearsor 1.9.3 syntax: <%= form_for @user , html: { id: "signup" } do |f| %>
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Algorini over 8 yearsThis is the right answer, Rails has included the namespace option especially for this use-case.
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fatuhoku almost 8 yearsI agree. This should be the answer.
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ozbilgic almost 4 yearsThank you @Subtletree. The id attribute does not change by assignment in some cases. For this reason, this is the most correct approach. The version I tried: Rails: 6.0.2.2