Hopefully someone can help. I have the following models
class Parent < ActiveRecord::Base
## schema id int, name string
has_many :children
accepts_nested_attributes_for :children
end
class Child < ActiveRecord::Base
## schema id int, name string, parent_id int
belongs_to :parent
end
... the following view ...
<h1>New parent</h1>
<% form_for :parent, :url => { :action => :create } do |p| %>
<%= p.text_field :name %>
<br />
<% p.fields_for :children do |c| %>
<%= c.text_field :name %>
<% end %>
<%= p.submit 'Create' %>
<% end %>
... and a scaffold built parents_controller ....
# GET /parents/new
# GET /parents/new.xml
def new
@parent = Parent.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @parent }
end
end
# POST /parents
# POST /parents.xml
def create
@parent = Parent.new(params[:parent])
respond_to do |format|
if @parent.save
flash[:notice] = 'Parent was successfully created.'
format.html { redirect_to(@parent) }
format.xml { render :xml => @parent, :status => :created, :location
=> @parent }
else
format.html { render :action => "new" }
format.xml { render :xml => @parent.errors, :status =>
:unprocessable_entity }
end
end
end
I'm getting this error ...
ActiveRecord::AssociationTypeMismatch in ParentsController#create
Child(#-608967938) expected, got Array(#-605071598)
Paramters ...
{"parent"=>{"name"=>"Ants",
"children"=>{"name"=>"Pants"}},
"commit"=>"Create",
"authenticity_token"=>"x4BoHI06Asp6QumOwFkccthv+no7ychn57tqOl7q9Ig="}
I've tried inserting the same details via the console and it worked but I
provided a list ot children_attributes ....
params = { :parent => { :name => 'Ants', :children_attributes => [ { :name
=> 'Pants' } ] } }
p = Parent.create(params[:parent])
and that works fine
So, how do I get *:children_attributes => [ { :name => 'Pants' } ] }* to be
passed in the params to the controller from the form_for / fields_for in the
view?
Plus, I really need to get this to work with another model relationship that
such as ....
class Account < ActiveRecord::Base
has_many :memberships
has_many :members, :through => :memberships
accepts_nested_attributes_for :members
end
class Member < ActiveRecord::Base
has_many :memberships
has_many :accounts, :through => :memberships
end
class Membership < ActiveRecord::Base
belongs_to :member
belongs_to :account
end
Is there anything special I need to fdo for the :through ??/
Thank you for any light you can throw on this
-Ants
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