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Mistral Contrastin

2011-Mar-26 16:56 UTC

"Undefined Attribute Method"

I couldn''t find any other source to solve my problem, so I''m
posting
here I have a controller "candidates"


class CandidatesController < ApplicationController
  def new
    @candidate = Candidate.new
  end
end

A table model called candidate with lots of validations.

I create my new.html.erb and whenever I try to open it I get this
error message:

undefined method `define_attribute_methods'' for nil:NilClass

Extracted source (around line #3):

1: <h1>Yeni Basvuru</h1>
2:
3: <% form_for @candidate do |t|%>
4: <div>
5: 	<%= t.label :name,"Isim"%>
6: 	<%= t.text_field :name%>

Please help me out!

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Frederick Cheung

2011-Mar-26 17:49 UTC

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Re: "Undefined Attribute Method"

On Mar 26, 4:56 pm, Mistral Contrastin
<madgenhe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I couldn''t find any other source to solve my problem, so
I''m posting
> here I have a controller "candidates"
>
> class CandidatesController < ApplicationController
>   def new
>     @candidate = Candidate.new
>   end
> end
>
> A table model called candidate with lots of validations.
>
> I create my new.html.erb and whenever I try to open it I get this
> error message:
I''d say that the most likely problem is that you''ve managed to
define
a method (or have an attribute with a name) that clashes with a
standard ruby or activerecord method.
Do you have a method or column named class by any chance?

Fred
>
> undefined method `define_attribute_methods'' for nil:NilClass
>
> Extracted source (around line #3):
>
> 1: <h1>Yeni Basvuru</h1>
> 2:
> 3: <% form_for @candidate do |t|%>
> 4: <div>
> 5:      <%= t.label :name,"Isim"%>
> 6:      <%= t.text_field :name%>
>
> Please help me out!
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Mistral Contrastin

2011-Mar-26 17:56 UTC

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Re: "Undefined Attribute Method"

> I''d say that the most likely problem is that you''ve
managed to define
> a method (or have an attribute with a name) that clashes with a
> standard ruby or activerecord method.
> Do you have a method or column named class by any chance?
>
> Fred
I have these:

    t.string   "name"
    t.string   "surname"
    t.string   "email"
    t.integer  "tc_id"
    t.datetime "birthday"
    t.integer  "cellphone"
    t.integer  "localphone"
    t.boolean  "gender"
    t.string   "school"
    t.string   "class"
    t.text     "address"
    t.boolean  "accommodation"
    t.boolean  "scholarship"
    t.text     "other"
    t.text     "arrival"
    t.text     "condition"
    t.text     "reference"
    t.string   "parent_n"
    t.string   "parent_s"
    t.integer  "parent_p"
    t.string   "parent_e"
    t.string   "alt_name"
    t.integer  "alt_phone"
    t.boolean  "attendance"
    t.string   "which_event"
    t.boolean  "attendance_p"
    t.string   "which_camp"
    t.text     "expectation"
    t.string   "source"
    t.boolean  "terms"
    t.datetime "created_at"
    t.datetime "updated_at"

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Chris Kottom

2011-Mar-26 18:07 UTC

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Re: Re: "Undefined Attribute Method"

That "class" attribute is probably your problem.

On Sat, Mar 26, 2011 at 6:56 PM, Mistral Contrastin
<madgenhetic-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>wrote:
>
> > I''d say that the most likely problem is that you''ve
managed to define
> > a method (or have an attribute with a name) that clashes with a
> > standard ruby or activerecord method.
> > Do you have a method or column named class by any chance?
> >
> > Fred
>
> I have these:
>
>    t.string   "name"
>    t.string   "surname"
>    t.string   "email"
>    t.integer  "tc_id"
>    t.datetime "birthday"
>    t.integer  "cellphone"
>    t.integer  "localphone"
>    t.boolean  "gender"
>    t.string   "school"
>    t.string   "class"
>    t.text     "address"
>    t.boolean  "accommodation"
>    t.boolean  "scholarship"
>    t.text     "other"
>    t.text     "arrival"
>    t.text     "condition"
>    t.text     "reference"
>    t.string   "parent_n"
>    t.string   "parent_s"
>    t.integer  "parent_p"
>    t.string   "parent_e"
>    t.string   "alt_name"
>    t.integer  "alt_phone"
>    t.boolean  "attendance"
>    t.string   "which_event"
>    t.boolean  "attendance_p"
>    t.string   "which_camp"
>    t.text     "expectation"
>    t.string   "source"
>    t.boolean  "terms"
>    t.datetime "created_at"
>    t.datetime "updated_at"
>
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>
>
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Frederick Cheung

2011-Mar-26 18:12 UTC

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Re: "Undefined Attribute Method"

On Mar 26, 5:56 pm, Mistral Contrastin
<madgenhe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> > I''d say that the most likely problem is that you''ve
managed to define
> > a method (or have an attribute with a name) that clashes with a
> > standard ruby or activerecord method.
> > Do you have a method or column named class by any chance?
>
>
> I have these:
>
>     t.string   "school"
>     t.string   "class"
That would be a yes then.

Fred>     t.text     "address"
>     t.boolean  "accommodation"
>     t.boolean  "scholarship"
>     t.text     "other"
>     t.text     "arrival"
>     t.text     "condition"
>     t.text     "reference"
>     t.string   "parent_n"
>     t.string   "parent_s"
>     t.integer  "parent_p"
>     t.string   "parent_e"
>     t.string   "alt_name"
>     t.integer  "alt_phone"
>     t.boolean  "attendance"
>     t.string   "which_event"
>     t.boolean  "attendance_p"
>     t.string   "which_camp"
>     t.text     "expectation"
>     t.string   "source"
>     t.boolean  "terms"
>     t.datetime "created_at"
>     t.datetime "updated_at"
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Mistral Contrastin

2011-Mar-26 18:15 UTC

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Re: "Undefined Attribute Method"

Thanks a lot Fred!!

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johnwerry

2011-Mar-27 13:09 UTC

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Re: "Undefined Attribute Method"

Please post your model code

On Mar 26, 12:56 pm, Mistral Contrastin
<madgenhe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I couldn''t find any other source to solve my problem, so
I''m posting
> here I have a controller "candidates"
>
> class CandidatesController < ApplicationController
>   def new
>     @candidate = Candidate.new
>   end
> end
>
> A table model called candidate with lots of validations.
>
> I create my new.html.erb and whenever I try to open it I get this
> error message:
>
> undefined method `define_attribute_methods'' for nil:NilClass
>
> Extracted source (around line #3):
>
> 1: <h1>Yeni Basvuru</h1>
> 2:
> 3: <% form_for @candidate do |t|%>
> 4: <div>
> 5:      <%= t.label :name,"Isim"%>
> 6:      <%= t.text_field :name%>
>
> Please help me out!
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Rails - Mar 2011 - "Undefined Attribute Method"

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