[Rails] Re: help needed to create a complex form
Hi,
Be sure you have build the document for message before you use it.
On 8月19日, 下午1时08分, Tom Mac wrote:
> Hi
> Thanks for replying.I could do it partially with the following
> modifications to my models and views
>
> message_thread
>
> has_many messages
> accepts_nested_attributes_for :messages
>
> message
> ==
> belongs_to message_thread
> has_many :document_messages
> has_many :documents, :through => :document_messages
> accepts_nested_attributes_for :documents,:reject_if => lambda {|a|
> a[:attachment].blank?}
> validates_presence_of :subject
>
> No other change. But the problem is from the view I am not
> selecting any file for upload and not entering values for 'subject' .
> So surely the validation will fail and rerender my new action . My
> 'create' action like
>
> def create
> @message_thread = MessageThreads.new(params[:message_thread])
> if @message_thread.save
> flash[:notice] = "Message sent successfully"
> redirect_to home_url
> else
> flash.now[:error] = @message_thread.errors.full_messages.join(" />")
> render :action => 'new'
> end
> end
>
> The problem is now the file_field disappears. What might be the
> cause?I am struggling with this for hours.Please help
>
> Thanks
> --
> Posted viahttp://www.ruby-forum.com/.
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[Rails] Re: help needed to create a complex form
Hi
Thanks for replying.I could do it partially with the following
modifications to my models and views
message_thread
has_many messages
accepts_nested_attributes_for :messages
message
==
belongs_to message_thread
has_many :document_messages
has_many :documents, :through => :document_messages
accepts_nested_attributes_for :documents,:reject_if => lambda {|a|
a[:attachment].blank?}
validates_presence_of :subject
No other change. But the problem is from the view I am not
selecting any file for upload and not entering values for 'subject' .
So surely the validation will fail and rerender my new action . My
'create' action like
def create
@message_thread = MessageThreads.new(params[:message_thread])
if @message_thread.save
flash[:notice] = "Message sent successfully"
redirect_to home_url
else
flash.now[:error] = @message_thread.errors.full_messages.join("")
render :action => 'new'
end
end
The problem is now the file_field disappears. What might be the
cause?I am struggling with this for hours.Please help
Thanks
--
Posted via http://www.ruby-forum.com/.
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[Rails] Re: help needed to create a complex form
Hi,
There is an example for nested file upload form by using paperclip.
The codes are similar to you, be attention to the usage of
accepts_nested_attributes_for.
Check it here:
http://rails-bestpractices.com/posts/45-use-sti-and-polymorphic-model-for-multiple-uploads
On Aug 18, 1:43 pm, Tom Mac wrote:
> Hi
> My models are message_thread, message, document (document with
> attachments I am using paperclip)
>
> message_thread
>
> has_many messages
>
> message
> ==
> belongs_to message_thread
> has_many :document_messages
> has_many :documents, :through => :document_messages
>
> document
> =
> has_attached_file :attachment,
> :storage => :database
> has_many :document_messages
> has_many :messages, :through => :document_messages
>
> What i need is to create a message_thread with one message and that
> message with 2(or more) attachments. I tried like
>
> messages_controller
> ==
> def new
> @message_thread = MessageThread.new
> @message = @message_thread.messages.build
> end
>
> new.html.erb
> ==
>
> <%form_for @message_thread, :url => { :action => "create" },:html =>
> {:multipart => true,:class => "mail-tenant"} do |f| %>
> <%= f.text_field :mail_to %>
>
> <% f.fields_for :messages do |message| %>
> <%= message.label :subject,'Subject' %>
> <%= message.text_field :subject,:maxlength => 255 %>
>
>
> Attachments:
> <% message.fields_for :documents do |document| %>
>
> <%= document.file_field :attachment,:class => "file" %>
> <%= document.hidden_field :company_id,:value =>
> current_company.try(:id)%>
>
> <%end%>
> <%end%>
>
>
> Send
>
> Or Cancel
> <%end%>
>
> But I am getting error
> ActiveRecord::AssociationTypeMismatch in MessagesController#create
>
> Document(#-614356858) expected, got Array(#-608120208)
>
> Please help me to solve this. I have a vague idea of using
> accepts_nested_attributes_for . But please tell here can I use it
>
> Thanks in advance
>
> Tom
> --
> Posted viahttp://www.ruby-forum.com/.
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