Fix lt gt comparison with Date & Time

lib/ransack_mongo/mongo_adapter.rb

@@ -27,23 +27,19 @@ module RansackMongo
     end
 
     def gt_matcher(attr, value)
-      @query[attr] ||= {}
-      @query[attr]['$gt'] = value.to_f
+      append_sizeable_matcher('$gt', attr, value)
     end
 
     def lt_matcher(attr, value)
-      @query[attr] ||= {}
-      @query[attr]['$lt'] = value.to_f
+      append_sizeable_matcher('$lt', attr, value)
     end
 
     def gteq_matcher(attr, value)
-      @query[attr] ||= {}
-      @query[attr]['$gte'] = value.to_f
+      append_sizeable_matcher('$gte', attr, value)
     end
 
     def lteq_matcher(attr, value)
-      @query[attr] ||= {}
-      @query[attr]['$lte'] = value.to_f
+      append_sizeable_matcher('$lte', attr, value)
     end
 
     def or_op # or operation
@@ -63,5 +59,21 @@ module RansackMongo
     def self.predicates
       PREDICATES
     end
+
+    private
+
+    def append_sizeable_matcher(m, attr, value)
+      @query[attr] ||= {}
+      @query[attr][m] = parse_sizeable_value(value)
+    end
+
+    def parse_sizeable_value(value)
+      case value
+      when Date, Time
+        value
+      else
+        Float(value) rescue value
+      end
+    end
   end
 end

spec/ransack_mongo/mongo_adapter_spec.rb

@@ -48,35 +48,38 @@ module RansackMongo
       end
     end
 
-    describe '#gt_matcher' do
-      it 'returns the matcher' do
-        subject.gt_matcher('quantity', 1)
+    %w[gt lt gteq lteq].each do |m|
+      op_name = { 'gteq' => 'gte', 'lteq' => 'lte' }[m] || m
 
-        expect(subject.to_query).to eq('quantity' => { '$gt' => 1 })
-      end
-    end
+      describe "##{m}_matcher" do
+        it 'returns the matcher' do
+          subject.send "#{m}_matcher", 'quantity', 1
 
-    describe '#lt_matcher' do
-      it 'returns the matcher' do
-        subject.lt_matcher('quantity', 1)
+          expect(subject.to_query).to eq('quantity' => { "$#{op_name}" => 1 })
+        end
 
-        expect(subject.to_query).to eq('quantity' => { '$lt' => 1 })
-      end
-    end
+        it 'accepts time' do
+          updated_at = Time.now
+          subject.send "#{m}_matcher", 'updated_at', updated_at
 
-    describe '#gteq_matcher' do
-      it 'returns the matcher' do
-        subject.gteq_matcher('quantity', 1)
+          expect(subject.to_query).to eq('updated_at' => { "$#{op_name}" => updated_at })
+        end
 
-        expect(subject.to_query).to eq('quantity' => { '$gte' => 1 })
-      end
-    end
+        it 'accepts time as a string' do
+          updated_at = '2014-10-11 14:48:07 -0300'
 
-    describe '#lteq_matcher' do
-      it 'returns the matcher' do
-        subject.lteq_matcher('quantity', 1)
+          subject.send "#{m}_matcher", 'updated_at', updated_at
+
+          expect(subject.to_query).to eq('updated_at' => { "$#{op_name}" => updated_at })
+        end
+
+        it 'accepts date' do
+          updated_at = Date.new
 
-        expect(subject.to_query).to eq('quantity' => { '$lte' => 1 })
+          subject.send "#{m}_matcher", 'updated_at', updated_at
+
+          expect(subject.to_query).to eq('updated_at' => { "$#{op_name}" => updated_at })
+        end
       end
     end