activerecord - Group by name, count and total, and display it in a view using Rails -


i thought wasn't rookie anymore, until stumbled upon this.

i'm trying load html list, grouping shops per user , displaying per shop, number of receipts , total amount.

in sql group by, trying load code below, within shop model, rails console.

 def self.group_receipts(user, search_hash=nil)      shop_ids = shop.pluck(:id) & receipt.from_companies(user, search_hash).pluck(:shop_id)      #greceipt means grouped receipt     greceipt = struct.new(:name, :number_of_receipts, :total)      query = shop.joins(:receipts).where('shops.id in (?)',shop_ids).select('shops.name,count(receipts.id) number_of_receipts,sum(receipts.total) total').group('shops.id')      query    end

here output

>> shop.group_receipts(302).all    (2.0ms)  select id "shops"     (3.0ms)  select shop_id "receipts" (receipts.id in (select receipts.id  receipts  inner join shops on shops.id=receipts.shop_id  inner join companies on companies.id = shops.company_id  inner join user_companies on user_companies.company_id = companies.id  user_companies.user_id = 302)) , (receipts.is_manual null or receipts.is_manual=false) order receipts.created_at desc   shop load (2.0ms)  select shops.name,count(receipts.id) number_of_receipts,sum(receipts.total) total "shops" inner join "receipts" on "receipts"."shop_id" = "shops"."id" (shops.id in (16)) group shops.id [#<shop name: "kirlin osinski , dooley">]

if query seems right, why that output not name, 10, 1000 ?

that greceipt struct find on method definition intends create structure that, can later access gs.name, gs.number_of_receipts, gs.total, cannot understand how load list of objects of struct type output presented above :-s.

anyone rescue?

with of forum, understood problem within rails console.

i ended with

model:

def self.group_receipts(user, search_hash=nil)      shop_ids = shop.pluck(:id) & receipt.from_companies(user, search_hash).pluck(:shop_id)     query = shop.joins(:receipts).where('shops.id in (?)',shop_ids).select('shops.name,count(receipts.id) number_of_receipts,sum(receipts.total) total').group('shops.id')     query  end

controller:

@receipts_per_shop = shop.group_receipts(current_user)

partial view _receipts_per_shop:

<table class="table table-striped">   <thead>   <th><%=t 'activerecord.attributes.shop.name'%></th>   <th>#</th>   <th>total</th>   </thead>   <% if @shops.present? %>       <%= render partial: '/shops/receipt_per_shop', collection: @receipts_per_shop %>   <% else %>       <tbody><tr><td colspan="3"><%= t('no_records') %></td></tr></tbody>   <% end %> </table>

partial view _receipt_per_shop

<% @receipts_per_shop.each |rs| %>     <tr>       <td><%= rs.name %></td>       <td><%= rs.number_of_receipts %></td>       <td><%= rs.total %></td>     </tr> <% end %>

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