added starts, ends

lib/ransack/adapters/mongoid/attributes/predications.rb

@@ -52,7 +52,7 @@ module Ransack
           end
 
           def matches other
-            { name => /#{Regexp.escape(other)}/i }.to_inquiry
+            { name => /#{other}/i }.to_inquiry
           end
 
           def matches_any others
@@ -64,7 +64,7 @@ module Ransack
           end
 
           def does_not_match other
-            { "$not" => { name => /#{Regexp.escape(other)}/i } }.to_inquiry
+            { "$not" => { name => /#{other}/i } }.to_inquiry
           end
 
           def does_not_match_any others

lib/ransack/adapters/mongoid/ransack/constants.rb

@@ -3,32 +3,32 @@ module Ransack
     DERIVED_PREDICATES = [
       ['cont', {
         :arel_predicate => 'matches',
-        :formatter => proc { |v| "#{escape_wildcards(v)}" }
+        :formatter => proc { |v| "#{escape_regex(v)}" }
         }
       ],
       ['not_cont', {
         :arel_predicate => 'does_not_match',
-        :formatter => proc { |v| "#{escape_wildcards(v)}" }
+        :formatter => proc { |v| "#{escape_regex(v)}" }
         }
       ],
       ['start', {
         :arel_predicate => 'matches',
-        :formatter => proc { |v| "#{escape_wildcards(v)}%" }
+        :formatter => proc { |v| "\\A#{escape_regex(v)}" }
         }
       ],
       ['not_start', {
         :arel_predicate => 'does_not_match',
-        :formatter => proc { |v| "#{escape_wildcards(v)}%" }
+        :formatter => proc { |v| "\\A#{escape_regex(v)}" }
         }
       ],
       ['end', {
         :arel_predicate => 'matches',
-        :formatter => proc { |v| "%#{escape_wildcards(v)}" }
+        :formatter => proc { |v| "#{escape_regex(v)}\\Z" }
         }
       ],
       ['not_end', {
         :arel_predicate => 'does_not_match',
-        :formatter => proc { |v| "%#{escape_wildcards(v)}" }
+        :formatter => proc { |v| "#{escape_regex(v)}\\Z" }
         }
       ],
       ['true', {
@@ -81,8 +81,8 @@ module Ransack
 
   module_function
     # does nothing
-    def escape_wildcards(unescaped)
-      unescaped
+    def escape_regex(unescaped)
+      Regexp.escape(unescaped)
     end
   end
 end

spec/mongoid/predicate_spec.rb

@@ -137,5 +137,19 @@ module Ransack
         expect(@s.result.selector).to eq({ "created_at" => { '$lte' => time } })
       end
     end
+
+    describe 'starts_with' do
+      it 'generates an starts_with' do
+        @s.name_start = 'ric'
+        expect(@s.result.selector).to eq({ "name" => /\Aric/i })
+      end
+    end
+
+    describe 'ends_with' do
+      it 'generates an ends_with' do
+        @s.name_end = 'ric'
+        expect(@s.result.selector).to eq({ "name" => /ric\Z/i })
+      end
+    end
   end
 end