add a little daily articles counter to sources#index

app/controllers/sources_controller.rb

@@ -4,6 +4,16 @@ class SourcesController < ApplicationController
   # GET /sources or /sources.json
   def index
     @sources = Source.all.order(name: :asc)
+    @article_counts_by_day = [
+      Article.today.count,
+      Article.yesterday.count,
+      Article.days_ago(2).count,
+      Article.days_ago(3).count,
+      Article.days_ago(4).count,
+      Article.days_ago(5).count,
+      Article.days_ago(6).count,
+      Article.days_ago(7).count
+    ]
   end
 
   # GET /sources/1 or /sources/1.json

app/models/article.rb

@@ -8,4 +8,8 @@ class Article < ApplicationRecord
                   against: %i[title source_name readability_output],
                   using: { tsearch: { prefix: true } }, # tsearch = full text search
                   ignoring: :accents
+
+  scope :today, -> { where('DATE(published_at) = CURRENT_DATE') }
+  scope :yesterday, -> { where('DATE(published_at) = CURRENT_DATE - 1') }
+  scope :days_ago, ->(days) { where("DATE(published_at) = CURRENT_DATE - #{days}") } 
 end

app/views/sources/index.html.slim

@@ -11,6 +11,17 @@
 
   = link_to "New source", new_source_path
 
+  div id="article_counts"
+    table
+      - (Date.current - 7.days .. Date.current).to_a.reverse.each_with_index do |date, index|
+        tr
+          th
+            p
+              = date.strftime("%A %d.")
+          th
+            p
+              = @article_counts_by_day[index]
+
   div id="sources"
     .list_view_desktop
       - @sources.each do |source|