Trying to post a user's email address to a membership table in rails -

https://github.com/jtrinker/highlands

i'm building app allows user sign in , join group. when click on group , click 'join' user's email address posted memberships table , users have joined group saved.

i have user, group, , membership model. things got little hairy once added membership table.

models:

class membership < activerecord::base   belongs_to :user   belongs_to :group   attr_accessible :user_email end  class user < activerecord::base   belongs_to :group   # include default devise modules. others available are:   # :token_authenticatable, :confirmable,   # :lockable, :timeoutable , :omniauthable   devise :database_authenticatable, :registerable,          :recoverable, :rememberable, :trackable, :validatable    # setup accessible (or protected) attributes model   attr_accessible :email, :username, :password, :password_confirmation, :remember_me end  class group < activerecord::base   has_many :memberships   has_many :users, :through => :memberships   attr_accessible :description, :location, :name end 

groups#show:

<h1><%= @group.name %></h1> <h4><%= @group.location %></h4> <p><%= @group.description %></p> <%= link_to "join +", memberships_path(:user_email => user.email), :method => :post %> 

i'm not sure need have user become member of group.

all code on github - https://github.com/jtrinker/highlands

thanks!

as see sending :post request groups#create action via link_to, can way:

create :join action in membership controller

def join # code here end 

add route following code

resources :membership   :join, via: :get end 

it show return route like:

membership_join /membership/:membership_id/join(.:format) membership#join 

than in view link join action membership_id

<%= link_to "join +", membership_join_path(:membership_id => @group.id) %>