hi,
I have two models with many to many associations:
class Project
include DataMapper::Resource
property :id, Serial
property :project_notes, Text
property :project_name, String
property :estimate, Integer
property :project_code, String
has n, :tasks, :through => Resource
end
class Task
include DataMapper::Resource
property :id, Serial
property :hour_rate, Float
property :task_name, String
property :attr, Integer
has n, :projects, :through => Resource
end
In the router.rb I have this:
Merb::Router.prepare do
resources :projects do |project|
project.resources :tasks
end
....
For the association in the view I'm using a select control.
<%= select :tasks, :label => "Tasks", :value_method
=> :id, :text_method => :task_name, :collection => Task.all %>
And this is HTML code of the form:
<form method="post" action="/projects/1">
<input type="hidden" value="put" name="_method">
<p>
<label for="project_project_name">Project name</label><input
type="text" class="text" value="test 1" name="project[project_name]"
id="project_project_name">
</p>
<p>
<label for="project_project_code">Project code</label><input
type="text" class="text" value="t101" name="project[project_code]"
id="project_project_code">
</p>
<p>
<label for="project_project_notes">Notes</label>
<textarea name="project[project_notes]"
id="project_project_notes">
</textarea>
</p>
<p>
<label for="project_tasks">Tasks</label> <select name="project
[tasks]" id="project_tasks">
<option selected="selected" value="1">
task 1
</option>
<option value="2">
task 2
</option>
</select>
</p>
<p>
<input type="submit" value="Update" name="submit" id="submit">
</p>
</form>
When the model gets saved I get error:
No Method Error 500
undefined method `collection=' for "2":String
Params: {"format"=>nil, "submit"=>"Update", "project"=>
{"project_notes"=>"", "project_name"=>"test 1", "tasks"=>"4",
"project_code"=>"dsds"}, "action"=>"update", "_method"=>"put",
"id"=>"1", "controller"=>"projects"}
I guess the actual problem is in incorrect naming of the select field.
Could somebody point me in the right direction?
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