Allow to limit the objects that will be geocoded by rake task

README.md

@@ -114,6 +114,10 @@ Geocoder will print warnings if you exceed the rate limit for your geocoding ser
 
     rake geocode:all CLASS=YourModel SLEEP=0.25 BATCH=100
 
+To avoid per-day limit issues (for example if you are trying to geocode thousands of objects and don't want to reach the limit), you can add a `LIMIT` option. Warning: This will ignore the `BATCH` value if provided.
+
+    rake geocode:all CLASS=YourModel LIMIT=1000
+
 ### Avoiding Unnecessary API Requests
 
 Geocoding only needs to be performed under certain conditions. To avoid unnecessary work (and quota usage) you will probably want to geocode an object only when:

lib/tasks/geocoder.rake

-require "geocoder/models/mongoid" 
+require "geocoder/models/mongoid"
 
 namespace :geocode do
   desc "Geocode all objects without coordinates."
@@ -7,6 +7,7 @@ namespace :geocode do
     sleep_timer = ENV['SLEEP'] || ENV['sleep']
     batch = ENV['BATCH'] || ENV['batch']
     reverse = ENV['REVERSE'] || ENV['reverse']
+    limit = ENV['LIMIT'] || ENV['limit']
     raise "Please specify a CLASS (model)" unless class_name
     klass = class_from_string(class_name)
     batch = (batch.to_i unless batch.nil?) || 1000
@@ -20,13 +21,20 @@ namespace :geocode do
     }
 
     scope = reverse ? klass.not_reverse_geocoded : klass.not_geocoded
+    scope = scope.limit(limit) if limit
     if orm == 'mongoid'
       scope.each do |obj|
         geocode_record.call(obj)
       end
     elsif orm == 'active_record'
-      scope.find_each(batch_size: batch) do |obj|
-        geocode_record.call(obj)
+      if limit
+        scope.each do |obj|
+          geocode_record.call(obj)
+        end
+      else
+        scope.find_each(batch_size: batch) do |obj|
+          geocode_record.call(obj)
+        end
       end
     end