Formatting date field in form

Rails
1

I am new to RoR and trying to update an existing app developed by
someone else. I have the following form in a partial file to display for
the new and edit actions. I added :value to the program_date field to
display only the date of the timestamp field, removing the time portion
of the field value. It works as needed for edit…

= form.inputs do
= form.input :program, :as => :select, :collection => @programs
= form.input :headline, :as => :string
= form.input :message, :as => :text
= form.input :program_date, :as => :string, :input_html => { :class
=> ‘date-pick’, :value =>
@program_special.program_date.strftime(“%m/%d/%Y”)}

But when creating a new record, I get an error when trying the same form
for a creating a new record, I guess because the field has no value when
new…

|undefined method `strftime’ for nil:NilClass|

How can I apply to only the edit form? Or am I trying to accomplish this
in the correct way?

Thanks, Robert

–
Robert

–
Robert [email protected]

2

On 9 December 2014 at 23:08, Robert F. [email protected]
wrote:

= form.input :program_date, :as => :string, :input_html => { :class =>
‘date-pick’, :value => @program_special.program_date.strftime(“%m/%d/%Y”)}

But when creating a new record, I get an error when trying the same form for
a creating a new record, I guess because the field has no value when new…

undefined method `strftime’ for nil:NilClass

How can I apply to only the edit form? Or am I trying to accomplish this in
the correct way?

You don’t need to take different action dependent on whether you are
editting or creating, but, as you have correctly identified, whether
the date has a value or not. You could set the value to a default
value in the new action, possibly something like

@program_special.program_date = Time.now

or you can prevent it trying to display an empty date with something
like

= form.input :program_date, :as => :string, :input_html => { :class =>

‘date-pick’, :value => (@program_special.program_date.strftime(“%m/%d/%Y”) if
@program_special.program_date)}

Colin

3

Robert F. wrote:

= form.input :program_date, :as => :string, :input_html => { :class =>
‘date-pick’, :value => @program_special.program_date.strftime(“%m/%d/%Y”)}

But when creating a new record, I get an error when trying the same form
for a creating a new record, I guess because the field has no value when
new…

|undefined method `strftime’ for nil:NilClass|

To clarify, this form is in a partial named _form.html.haml that is used
in the new.html.haml and edit.html.haml files. The new file contains the
following while the edit is the same with the addition of a delete
button…

= semantic_form_for(@program_special, :url =>
admin_program_specials_path, :html => {:method => :post, :multipart =>
true, :class => ‘well’}) do |f|
= render :partial => ‘form’, :locals => {:form => f}
= f.actions do
= f.submit ‘Save Program Special’, :class => ‘btn-primary’
= link_to ‘Cancel’, admin_program_specials_path, :class => ‘btn’

Robert [email protected]