Rails checkbox checked/unchecked values
To handle checked and unchecked values of a checkbox in Ruby on Rails, you can follow these steps:
Step 1: Create a checkbox in your view file (HTML.erb) using the check_box_tag
helper method. This method generates an HTML checkbox input element.
Step 2: Assign a unique name to the checkbox using the name
attribute. This name will be used to identify the checkbox in the params hash when the form is submitted.
Step 3: In your controller, access the checkbox value using the params hash. The params hash contains all the form data submitted by the user.
Step 4: To check if the checkbox is checked, use the params[:checkbox_name]
syntax, where checkbox_name
is the name assigned to the checkbox in Step 2. If the checkbox is checked, the value will be "1"
; otherwise, it will be "0"
.
Step 5: Based on the checkbox value, you can perform the desired action in your controller or view. For example, you can update a database record or display different content.
Here is an example of how you can implement these steps:
Step 1: In your view file (HTML.erb), add the following code to create a checkbox:
<%= check_box_tag 'checkbox_name' %>
Step 2: Assign a name to the checkbox:
<%= check_box_tag 'checkbox_name' %>
Step 3: In your controller, access the checkbox value:
def create
if params[:checkbox_name] == "1"
# Checkbox is checked
# Perform desired action
else
# Checkbox is unchecked
# Perform desired action
end
end
Step 4: Based on the checkbox value, perform the desired action in your controller.
That's it! You have now implemented handling of checked and unchecked values for a checkbox in Ruby on Rails.