date in a textfield

Hi
   I have two date fields in table start_date and end_date .There data
type are datetime. Now in the view I am accepting values of them as
text fields like And I am following RailsCast 32

<%= f.text_field :start_date_string, :value => '', :maxlength => 50
%><img src="../images/calendar.png" alt="Calendar" />
<%= f.text_field :end_date_string, :value => '', :maxlength => 50 %><img
src="../images/calendar.png" alt="Calendar" />

And in my model

  validates_presence_of :start_date

  def start_date_string
    start_date.to_s(:db)
  end

  def start_date_string=(start_date_str)
    self.start_date = Time.parse(start_date_str)
  end

  def end_date_string
    end_date.to_s(:db)
  end

  def end_date_string=(end_date_str)
    self.end_date = Time.parse(end_date_str)
  end

   But my problem is validates_presence_of :start_date is not working
Even if I dont give any values to start date it does not show any error
message. Please help

Thanks in advance
Tom

When you say it is not working, what exactly is not working? Two
things should happen if the validate fails, firstly the record should
not get saved to the database and secondly an error message should be
made available. You have said that you are seeing no message but is
the record getting saved or not?

How are you showing the error message? An error here could be the
explanation for not seeing the message.

Have you tried using ruby-debug to break into your controller and see
what is happening when you submit? If you do not know how to do this
have a look at the rails guide on debugging at
http://guides.rubyonrails.org/.

Colin

Hi Team,

I am having a similar problem, also following along from railscast 32.

Any suggestions welcome. Is it an erb thing or something wrong with my
model code? Also :formdate is a date field not a datetime field.

...
Hi Team,

I am having a similar problem, also following along from railscast 32.

Any suggestions welcome. Is it an erb thing or something wrong with my
model code? Also :formdate is a date field not a datetime field.

==========
View throws this ERROR PAGE:
ArgumentError in Contracts#new

Showing app/views/contracts/new.html.erb where line #84 raised:

wrong number of arguments (1 for 0)

Extracted source (around line #84):

81: <td>
82: <div class="order_details">
83:
84: <div class="onecol"><%= f.label :formdate, "Date" %><br /><%=
f.text_field :formdate_string
85: %></div>
86: <div class="twocol1"><%= f.label :publication %> <%=
f.text_field :publication %></div>
87: <div class="twocol2"><%= f.label :issue %> <%=
f.text_field :issue %></div>

This is not a similar problem at all. The OP had an issue with
validations, yours is showing an error.

I don't see the problem immediately, but I suggest removing bits of
code till it does not show the error, then putting it back a little at
a time till you find exactly what is causing the problem.

Request

Parameters:

None

Show session dump

---

Response

Headers:

{"Content-Type"=>"text/html",
"Cache-Control"=>"no-cache"}

MODEL:
class Contract < ActiveRecord::Base

def formdate_string
formdate.to_s(:db)
end

def formdate_string=(fdate_str)
self.formdate = Time.parse(fdate_str)
end

end

VIEW: new.html.erb - extract
<div class="onecol"><%= f.label :formdate, "Date" %><br />
<%= f.text_field :formdate_string %></
>

That does not appear to be exactly the same code as shown in the error
above. Above it has a newline after :formdate_string, as it shows the
%> on line 85. Could that be part of the problem I wonder?

Colin

Thanks for your prompt reply. It wasn't the new line, but that
difference was well spotted.

I found it... makes sense now... ArgumentError... it wasn't getting
passed an argument for a new form. The form worked for the edit action
when the field was populated.

I needed to initialize the formdate field with a value. So I added
this to the "new" action of the controller.
eg.

def new

    @contract = Contract.new
    @contract.formdate = Time.now.localtime.strftime("%Y-%m-%d")

end

Would you say this is good practice? or could I do it better elswhere
or with different code?

Cheers.

Hi

MODEL:
class Contract < ActiveRecord::Base

  def formdate_string
    formdate.to_s(:db)
  end

  def formdate_string=(fdate_str)
    self.formdate = Time.parse(fdate_str)
  end

end

     This happens when in the new does not get value And as one of the
post in the railscast page suggest it can be solved with an instance
varibale like

   def formdate_string
     @formdate_string || (formdate.to_s(:db) unless formdate.nil?)
   end

   def formdate_string=(fdate_str)
     @formdate_string = fdate_str
     self.formdate = Date.parse(@formdate_string)
    rescue ArgumentError
        @formdate_invalid = true
   end

   @formdate_invalid can be used in def validate

Tom

Ok Cool, thank you.