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I am trying to validate if the phone number is a digit or not :- This is my user.rg number_regex = /\d[0-9]\)*\z/ validates_format_of :phone, :with => number_regex, :message => "Only positive number without spaces are allowed" This is my view.html.haml %li %strong=f.label :phone, "Phone Number" =f.text_field :phone, :placeholder => "Your phone number" This is controller def edit_profile @user = current_user request.method.inspect if request.method == "POST" if @user.update_attributes(params[:user]) sign_in(@user, :bypass => true) flash[:success] = "You have updated your profile successfully" redirect_to dashboard_index_path else flash[:error] = "Profile could not be updated" render :action => "edit_profile" end end end When I enter the number in the text field for the first time it validates prperly, but if I enter the correct format and then try to enter the wrong format it skips validations and I get a flash message that profile has been successfully updated, however the wrong value (with letters) is not saved. What could be the problem here?

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