Add row_limit settings

app/controllers/blazer/queries_controller.rb

@@ -270,6 +270,7 @@ def render_run
 
         respond_to do |format|
           format.html do
+            @rows = @rows.slice(0, Blazer.row_limit) if Blazer.row_limit
             render layout: false
           end
           format.csv do

app/views/blazer/queries/run.html.erb

@@ -25,7 +25,11 @@
       </p>
     <% end %>
     <p class="text-muted" style="margin-bottom: 10px;">
-      <%= pluralize(@rows.size, "row") %>
+      <% if @result.rows.size != @rows.size %>
+        <%= pluralize(@rows.size, "row") %> out of <%= pluralize(@result.rows.size, "row") %>
+      <% else %>
+        <%= pluralize(@rows.size, "row") %>
+      <% end %>
 
       <% @checks.select(&:state).each do |check| %>
         &middot; <small class="check-state <%= check.state.parameterize.gsub("-", "_") %>"><%= link_to check.state.upcase, edit_check_path(check) %></small>

lib/blazer.rb

@@ -56,6 +56,7 @@ class << self
     attr_accessor :override_csp
     attr_accessor :slack_webhook_url
     attr_accessor :mapbox_access_token
+    attr_accessor :row_limit
   end
   self.audit = true
   self.user_name = :name

lib/blazer/engine.rb

@@ -25,6 +25,7 @@ class Engine < ::Rails::Engine
       Blazer.from_email = Blazer.settings["from_email"] if Blazer.settings["from_email"]
       Blazer.before_action = Blazer.settings["before_action_method"] if Blazer.settings["before_action_method"]
       Blazer.check_schedules = Blazer.settings["check_schedules"] if Blazer.settings.key?("check_schedules")
+      Blazer.row_limit = Blazer.settings["row_limit"] if Blazer.settings["row_limit"]
       Blazer.cache ||= Rails.cache
 
       Blazer.anomaly_checks = Blazer.settings["anomaly_checks"] || false

lib/generators/blazer/templates/config.yml.tt

@@ -77,3 +77,7 @@ check_schedules:
 #   url: <%%= ENV["BLAZER_UPLOADS_URL"] %>
 #   schema: uploads
 #   data_source: main
+
+# limit of row count in HTML view.
+# default is unlimited
+# row_limit: 5000