add google_static_map_url

Author: chamnap

lib/liquid-rails/filters/google_static_map_url_filter.rb

@@ -0,0 +1,29 @@
+module Liquid
+  module Rails
+    module GoogleStaticMapUrlFilter
+
+      # size:     '600x300'
+      #
+      # Available keys inside options
+      # center:   '40.714728,-73.998672'
+      # zoom:     13
+      # maptype:  'roadmap', 'satellite', 'terrain', or 'hybrid'
+      # markers:  an array of this 'color:blue|label:S|40.702147,-74.015794'
+      #           or string with semicolon
+      def google_static_map_url(size, options={})
+        markers = options.delete('markers')
+        markers = if markers
+          markers = markers.split(';') if markers.is_a?(String)
+          markers.map { |marker| { markers: marker }.to_query }
+        else
+          ''
+        end
+        querystring = [options.to_query, markers].delete_if { |value| value.blank? }.join('&')
+
+        "https://maps.googleapis.com/maps/api/staticmap?#{querystring}"
+      end
+    end
+  end
+end
+
+Liquid::Template.register_filter(Liquid::Rails::GoogleStaticMapUrlFilter)

lib/liquid-rails/matchers.rb

@@ -1,4 +1,5 @@
 require 'liquid-rails/rspec/view_controller_context'
 require 'liquid-rails/rspec/drop_matchers'
 require 'liquid-rails/rspec/drop_example_group'
-require 'liquid-rails/rspec/tag_example_group'
+require 'liquid-rails/rspec/tag_example_group'
+require 'liquid-rails/rspec/filter_example_group'

lib/liquid-rails/rspec/filter_example_group.rb

@@ -0,0 +1,24 @@
+module Liquid
+  module Rails
+    module Rspec
+      module FilterExampleGroup
+        extend ActiveSupport::Concern
+        include Liquid::Rails::Rspec::ViewControllerContext
+
+        included do
+          metadata[:type] = :filter
+
+          before(:all)  { setup_view_and_controller }
+        end
+      end
+    end
+  end
+end
+
+RSpec.configure do |config|
+  if RSpec::Core::Version::STRING.starts_with?('3')
+    config.include Liquid::Rails::Rspec::FilterExampleGroup, type: :filter, file_path: %r(spec/filters)
+  else
+    config.include Liquid::Rails::Rspec::FilterExampleGroup, type: :filter, example_group: { file_path: %r{spec/filters} }
+  end
+end

lib/liquid-rails/rspec/tag_example_group.rb

@@ -10,16 +10,6 @@ module TagExampleGroup
 
           before(:all) { setup_view_and_controller }
         end
-
-        def expect_template_result(template, expected, assigns={})
-          # make assigns available inside context
-          assigns.each do |key, value|
-            context[key] = value
-          end
-
-          actual = Liquid::Template.parse(template).render!(context)
-          expect(actual).to eq(expected)
-        end
       end
     end
   end

lib/liquid-rails/rspec/view_controller_context.rb

@@ -28,6 +28,16 @@ def controller
         def context(assigns={})
           @context ||= ::Liquid::Context.new(assigns, {}, { helper: @view, view: @view, controller: @controller })
         end
+
+        def expect_template_result(template, expected, assigns={})
+          # make assigns available inside context
+          assigns.each do |key, value|
+            context[key] = value
+          end
+
+          actual = Liquid::Template.parse(template).render!(context)
+          expect(actual).to eq(expected)
+        end
       end
     end
   end

spec/lib/liquid-rails/filters/google_static_map_url_filter_spec.rb

@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+module Liquid
+  module Rails
+    describe GoogleStaticMapUrlFilter, type: :filter do
+      it 'returns url with center' do
+        expect_template_result("{{ '600x300' | google_static_map_url: center: '40.714728,-73.998672' }}", 'https://maps.googleapis.com/maps/api/staticmap?center=40.714728%2C-73.998672')
+      end
+
+      it 'returns url with zoom' do
+        expect_template_result("{{ '600x300' | google_static_map_url: zoom: 13 }}", 'https://maps.googleapis.com/maps/api/staticmap?zoom=13')
+      end
+
+      it 'returns url with maptype' do
+        expect_template_result("{{ '600x300' | google_static_map_url: maptype: 'hybrid' }}", 'https://maps.googleapis.com/maps/api/staticmap?maptype=hybrid')
+      end
+
+      it 'returns url with markers' do
+        expect_template_result("{{ '600x300' | google_static_map_url: markers: 'color:blue|label:S|40.702147,-74.015794;color:green|label:G|40.711614,-74.012318' }}", 'https://maps.googleapis.com/maps/api/staticmap?markers=color%3Ablue%7Clabel%3AS%7C40.702147%2C-74.015794&markers=color%3Agreen%7Clabel%3AG%7C40.711614%2C-74.012318')
+      end
+    end
+  end
+end