more work on influxdb 0.9 query editor and query builder, can now handle regex conditions, tag operator and tag value quotes changes automatically depending if the tag value is a regex or not, #1525

public/app/plugins/datasource/influxdb/queryBuilder.js

@@ -8,6 +8,13 @@ function (_) {
     this.target = target;
   }
 
+  function renderTagCondition (key, value) {
+    if (value && value[0] === '/' && value[value.length - 1] === '/') {
+      return key + ' =~ ' + value;
+    }
+    return key + " = '" + value + "'";
+  }
+
   var p = InfluxQueryBuilder.prototype;
 
   p.build = function() {
@@ -42,7 +49,7 @@ function (_) {
         if (tag.key === withKey) {
           return memo;
         }
-        memo.push(' ' + tag.key + '=' + "'" + tag.value + "'");
+        memo.push(renderTagCondition(tag.key, tag.value));
         return memo;
       }, []);
 
@@ -72,7 +79,7 @@ function (_) {
     query +=  aggregationFunc + '(value)';
     query += ' FROM ' + measurement + ' WHERE ';
     var conditions = _.map(target.tags, function(tag) {
-      return tag.key + '=' + "'" + tag.value + "' ";
+      return renderTagCondition(tag.key, tag.value);
     });
     conditions.push('$timeFilter');
 

public/app/plugins/datasource/influxdb/queryCtrl.js

@@ -39,7 +39,7 @@ function (angular, _, InfluxQueryBuilder) {
           $scope.tagSegments.push(MetricSegment.newCondition(tag.condition));
         }
         $scope.tagSegments.push(new MetricSegment({value: tag.key, type: 'key', cssClass: 'query-segment-key' }));
-        $scope.tagSegments.push(new MetricSegment({fake: true, value: "=", cssClass: 'query-segment-operator'}));
+        $scope.tagSegments.push(new MetricSegment.newOperator("="));
         $scope.tagSegments.push(new MetricSegment({value: tag.value, type: 'value', cssClass: 'query-segment-value'}));
       });
 
@@ -177,6 +177,7 @@ function (angular, _, InfluxQueryBuilder) {
     $scope.tagSegmentUpdated = function(segment, index) {
       $scope.tagSegments[index] = segment;
 
+      // handle remove tag condition
       if (segment.value === $scope.removeTagFilterSegment.value) {
         $scope.tagSegments.splice(index, 3);
         if ($scope.tagSegments.length === 0) {
@@ -193,7 +194,7 @@ function (angular, _, InfluxQueryBuilder) {
           if (index > 2) {
             $scope.tagSegments.splice(index, 0, MetricSegment.newCondition('AND'));
           }
-          $scope.tagSegments.push(MetricSegment.newFake('=', 'operator', 'query-segment-operator'));
+          $scope.tagSegments.push(MetricSegment.newOperator('='));
           $scope.tagSegments.push(MetricSegment.newFake('select tag value', 'value', 'query-segment-value'));
           segment.type = 'key';
           segment.cssClass = 'query-segment-key';
@@ -210,7 +211,7 @@ function (angular, _, InfluxQueryBuilder) {
     $scope.rebuildTargetTagConditions = function() {
       var tags = [];
       var tagIndex = 0;
-      _.each($scope.tagSegments, function(segment2) {
+      _.each($scope.tagSegments, function(segment2, index) {
         if (segment2.type === 'key') {
           if (tags.length === 0) {
             tags.push({});
@@ -219,6 +220,7 @@ function (angular, _, InfluxQueryBuilder) {
         }
         else if (segment2.type === 'value') {
           tags[tagIndex].value = segment2.value;
+          $scope.tagSegments[index-1] = $scope.getTagValueOperator(segment2.value);
         }
         else if (segment2.type === 'condition') {
           tags.push({ condition: segment2.value });
@@ -230,6 +232,14 @@ function (angular, _, InfluxQueryBuilder) {
       $scope.$parent.get_data();
     };
 
+    $scope.getTagValueOperator = function(tagValue) {
+      if (tagValue[0] === '/' && tagValue[tagValue.length - 1] === '/') {
+        return MetricSegment.newOperator('=~');
+      }
+
+      return MetricSegment.newOperator('=');
+    };
+
     function MetricSegment(options) {
       if (options === '*' || options.value === '*') {
         this.value = '*';
@@ -265,6 +275,10 @@ function (angular, _, InfluxQueryBuilder) {
       return new MetricSegment({value: condition, type: 'condition', cssClass: 'query-keyword' });
     };
 
+    MetricSegment.newOperator = function(op) {
+      return new MetricSegment({value: op, type: 'operator', cssClass: 'query-segment-operator' });
+    };
+
     MetricSegment.newPlusButton = function() {
       return new MetricSegment({fake: true, html: '<i class="fa fa-plus "></i>', type: 'plus-button' });
     };

public/test/specs/influx09-querybuilder-specs.js

@@ -31,6 +31,11 @@ define([
                             + ' GROUP BY time($interval) ORDER BY asc');
       });
 
+      it('should switch regex operator with tag value is regex', function() {
+        var builder = new InfluxQueryBuilder({measurement: 'cpu', tags: [{key: 'app', value: '/e.*/'}]});
+        var query = builder.build();
+        expect(query).to.be('SELECT mean(value) FROM "cpu" WHERE app =~ /e.*/ AND $timeFilter GROUP BY time($interval) ORDER BY asc');
+      });
     });
 
     describe('series with multiple tags only', function() {
@@ -105,6 +110,12 @@ define([
         expect(query).to.be('SHOW TAG VALUES FROM "cpu" WITH KEY = "app" WHERE host = \'server1\'');
       });
 
+      it('should switch to regex operator in tag condition', function() {
+        var builder = new InfluxQueryBuilder({measurement: 'cpu', tags: [{key: 'host', value: '/server.*/'}]});
+        var query = builder.buildExploreQuery('TAG_VALUES', 'app');
+        expect(query).to.be('SHOW TAG VALUES FROM "cpu" WITH KEY = "app" WHERE host =~ /server.*/');
+      });
+
     });
 
   });

public/test/specs/influxdbQueryCtrl-specs.js

@@ -65,6 +65,18 @@ define([
       });
     });
 
+    describe('when last tag value segment is updated to regex', function() {
+      beforeEach(function() {
+        ctx.scope.init();
+        ctx.scope.tagSegmentUpdated({value: 'asd', type: 'plus-button'}, 0);
+        ctx.scope.tagSegmentUpdated({value: '/server.*/', type: 'value'}, 2);
+      });
+
+      it('should update operator', function() {
+        expect(ctx.scope.tagSegments[1].value).to.be('=~');
+      });
+    });
+
     describe('when second tag key is added', function() {
       beforeEach(function() {
         ctx.scope.init();