I am trying to pass parameters from an "Events" controller, to an
"Invitations" controller and from the Invitations#new to the
Invitations#create views. I think I'm pretty close to getting this wrapped
up bit keep getting: "param is missing or the value is empty: " errors when
I run it.
In order to pass the event.id from the Event#show view I am doing the
following through the "Invite Guests" link.
events/show.html.erb
<% @user.owned_events.each do |e| %><ul><li><%= e.name %> | <%= link_to
"Invite Guests", invitations_new_path(:event_select => e.id) %></li>
That should pass the current event selected as event_select.
I am then using that event id as well as all of the user ids(minus the
current_user) to create a list of possible invitees.
invitations_controller.rb:
class InvitationsController < ApplicationController
helper_method :current_user
def new@event_selected = Event.find(params[:event_select])@users =
User.where("id != ?", current_user.id )end
def create@invitation = Invitation.new(invite_params)end
private
def invite_params
params.require(:attended_event_id => params[:event_selected], :attendee_id =>
params[:user_ids].first )
end
end
My view showing the list of users and after selecting a checkbox, should
pass the event_selected and user_ids.
invitations/new.html.erb
<h3>Invite users to <%= @event_selected.name %></h3>
<%= bootstrap_form_for Invitation.new do |f| %><br>
<ul>
<% @users.each do |user| %>
<li>
<%= hidden_field_tag :event_selected, @event_selected.id %>
<%= check_box_tag 'user_ids[]', user.id %>
<%= h user.name %>
</li>
<% end %>
</ul><br><%= submit_tag "Invite Selected Users" %><% end %>
I am trying to get this to work to select just a single user at a time
before moving to create multiple objects from the selected event combined
with all the results in the user_id array. When I select a single user I
keep getting the missing param error but looking at the hash, it seems like
everything is there.
param is missing or the value is empty: {:attended_event_id=>"14",
:attendee_id=>"3"}
Parameters:
{"utf8"=>"✓",
"authenticity_token"=>"GMMg9DwnTRAw4qP/ICqgACUB4d42Pl9Y7hrrNQzO38K8inbgyM00H2etrepjrT35hwIenHfwQPQW08V6QnHl1A==",
"event_selected"=>"14",
"user_ids"=>["3"],
"commit"=>"Invite Selected Users"}
Pretty new at this coding thing but this is the first problem I haven't
been able to solve through a lot stackoverflow searches. I seem to be
missing something here and I'm sure it's just a simple thing. Then again I
could be completely missing the mark trying to go about this without
following a bit more guided path...
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