Asynchronization of message transmission
Let the event fire when the form is submitted
I will explain this description.
In $ (*****), describe the class name of form.
Describe the event name in .on (***** ,.
In e.preventDefaul, the default event is stopped for asynchronous communication.
## Let's use Ajax to get messages # create to work when the event fires
This in this description contains information about the Form that fired the event.
$ (this) .attr ('action'); is getting the path of Form information.
# Let's save the message with the #create action of the messages controller and use respond_to to return the response to the JSON format request
Saves the information sent in the request
respond_to do |format|
Returning in json method
## Other output
HTML is added to the class name MessageField with append (html)
If you press the send button once, you will not be able to press it unless you reload it.
By writing prop ('disabled', false); in the submit button class, you can post without loading.
## Processing when asynchronous failure
If it fails, it will alert you of the error.
Used after Done