Fix result limit/offset mismatch

lib/search.rb

 require 'sequel'
 
+RESULTS_PER_PAGE = 50
+
 def search(params)
   query = params[:q].strip
-  offset = (params[:page] - 1) * 10
+  offset = (params[:page] - 1) * RESULTS_PER_PAGE
   username = params[:username].strip
   from_date = params[:from_date].strip
   to_date = params[:to_date].strip
       AND (created_at >= ? OR ? IS NULL)
       AND (created_at <= ? OR ? IS NULL)
     ORDER BY #{sort}
-    LIMIT 50
+    LIMIT #{RESULTS_PER_PAGE}
     OFFSET ?;
   SQL
 end
       AND ((LOWER(posts.creator) = LOWER(?)) OR (? = ''))
       AND (posts.created_at >= ? OR ? IS NULL)
       AND (posts.created_at <= ? OR ? IS NULL)
-    ORDER BY created_at DESC
-    LIMIT 50
+    ORDER BY posts.created_at DESC
+    LIMIT #{RESULTS_PER_PAGE}
     OFFSET ?;
   SQL
 end