I have controller looks like :
## controllers/lhgs_controller.rb
def index
@per_page = params[:per_page] || 10
@totalsolds = Totalsold.paginate(:per_page => @per_page, :page => params[:page]).order('date asc').group_by{ |s| [s.date, s.store_id, s.nomor] }
end
And views :
## index.hmtl.erb
<div id="totalsolds"><%= render 'totalsolds' %></div>
## views/_totalsolds.html.erb
<% @totalsolds.each do |(date, store, nomor), totalsold| %>
<tr>
<td><%= date.strftime("%d/%m/%Y") %></td>
<td><%= nomor %></td>
<td><%= Store.find(store).name %></td>
<% totalsold.each do |ts| %>
<td><%= ts.qty == 0 || ts.qty == nil ? "-" :prod.qty %></td>
<% end %>
<td>Rp<%= number_to_currency(totalsold.sum(&:value), :unit => "") %></td>
<td><%= link_to "edit", edit_bt_path(:store_id => store, :date => date, :nomor => nomor), :class => "btn btn-primer" %></td>
</tr>
<% end %>
...
...
<div class="row">
<div class="col-sm-6">
<% line 65 %>
<%= page_entries_info @totalsolds %>
</div>
<div class="col-sm-6">
<%= will_paginate @totalsolds, :style => 'float:right;margin-top:-5px;height:30px;' %>
</div>
</div>
I got an error :
ArgumentError in Lhgs#index
Showing C:/Sites/cms/app/views/lhgs/_totalsolds.html.erb where line 65 raised:
The @lhgs variable appears to be empty. Did you forget to pass the collection object for will_paginate?
I found same question and solution, but I can't figure out how to use it for my case.
UPDATE :
I'm not found anywhere @lhgs
variable, I tried to change @totalsolds
to @lhgs
and now my controller lookslike :
## controllers/lhgs_controller.rb
def index
@per_page = params[:per_page] || 10
@lhgs = Totalsold.order('date asc').group_by{ |s| [s.date, s.store_id, s.nomor] }
@lhgs = @lhgs.paginate(:per_page => @per_page, :page => params[:page])
end
And this an error :
NoMethodError in LhgsController#index
undefined method `paginate' for #<Hash:0x4c034a0>
Use rails console :
irb(main):001:0> @lhgs = Totalsold.order('date asc').group_by{ |s| [s.date, s.store_id, s.nomor] }
.... look at pastebin ......
irb(main):002:0> @lhgs.class
=> Hash
Solved
On controller :
def index
@per_page = params[:per_page] || 10
@lhgs = Totalsold.order('date asc').group_by{ |s| [s.date, s.store_id, s.nomor] }
@lhgs_keys = @lhgs.paginate(:per_page => @per_page, :page => params[:page])
end
And on view :
<% @lhgs_keys.each do |k| %>
<% @lhgs[k].group_by{ |s| [s.date, s.store_id, s.nomor] }.each |(date, store, nomor), totalsold| %>
.....
....
<% end %>
<% end %>
<div class="row">
<div class="col-sm-6">
<% line 65 %>
<%= page_entries_info @lhgs_keys %>
</div>
<div class="col-sm-6">
<%= will_paginate @lhgs_keys, :style => 'float:right;margin-top:-5px;height:30px;' %>
</div>
</div>