fix(templating): fixed encoding of all value for regex, and custom all value,…

fix(templating): fixed encoding of all value for regex, and custom all value, fixes #4755, fixes #4736

CHANGELOG.md

+# 3.0.0-beta6 (unreleased)
+
+### Bug fixes
+* **InfluxDB 0.12**: Fixed issue templating and `show tag values` query only returning tags for first measurement,  fixes [#4726](https://github.com/grafana/grafana/issues/4726)
+* **Templating**: Fixed issue with regex formating when matching multiple values, fixes [#4755](https://github.com/grafana/grafana/issues/4755)
+* **Templating**: Fixed issue with custom all value and escaping, fixes [#4736](https://github.com/grafana/grafana/issues/4736)
+
 # 3.0.0-beta5 (2016-04-15)
 
 ### Bug fixes

public/app/features/templating/templateSrv.js

@@ -57,7 +57,7 @@ function (angular, _) {
           }
 
           var escapedValues = _.map(value, regexEscape);
-          return escapedValues.join('|');
+          return '(' + escapedValues.join('|') + ')';
         }
         case "lucene": {
           if (typeof value === 'string') {
@@ -152,6 +152,10 @@ function (angular, _) {
         value = variable.current.value;
         if (self.isAllValue(value)) {
           value = self.getAllValue(variable);
+          // skip formating of custom all values
+          if (variable.allValue) {
+            return value;
+          }
         }
 
         var res = self.formatValue(value, format, variable);

public/test/specs/templateSrv-specs.js

@@ -99,6 +99,11 @@ define([
         var target = _templateSrv.replace('this.$test.filters', {}, 'glob');
         expect(target).to.be('this.*.filters');
       });
+
+      it('should not escape custom all value', function() {
+        var target = _templateSrv.replace('this.$test', {}, 'regex');
+        expect(target).to.be('this.*');
+      });
     });
 
     describe('lucene format', function() {
@@ -127,7 +132,7 @@ define([
 
       it('multi value and regex format should render regex string', function() {
         var result = _templateSrv.formatValue(['test.','test2'], 'regex');
-        expect(result).to.be('test\\.|test2');
+        expect(result).to.be('(test\\.|test2)');
       });
 
       it('multi value and pipe should render pipe string', function() {