progress on interval built in variable

public/app/core/components/query_part/query_part.ts

@@ -89,7 +89,7 @@ export function functionRenderer(part, innerExpr) {
     var paramType = part.def.params[index];
     if (paramType.type === 'time') {
       if (value === 'auto') {
-        value = '$interval';
+        value = '$__interval';
       }
     }
     if (paramType.quote === 'single') {

public/app/features/templating/specs/template_srv_specs.ts

@@ -245,8 +245,8 @@ describe('templateSrv', function() {
       initTemplateSrv([]);
     });
 
-    it('should replace $interval_ms with interval milliseconds', function() {
-      var target = _templateSrv.replace('10 * $interval_ms', {"interval_ms": {text: "100", value: "100"}});
+    it('should replace $__interval_ms with interval milliseconds', function() {
+      var target = _templateSrv.replace('10 * $__interval_ms', {"__interval_ms": {text: "100", value: "100"}});
       expect(target).to.be('10 * 100');
     });
 

public/app/features/templating/templateSrv.js

@@ -42,6 +42,10 @@ function (angular, _, kbn) {
 
         this._index[variable.name] = variable;
       }
+
+      // default built ins
+      this._index['__interval'] = {text: '1s', value: '1s'};
+      this._index['__interval_ms'] = {text: '100', value: '100'};
     };
 
     this.variableInitialized = function(variable) {

public/app/plugins/datasource/elasticsearch/query_builder.js

@@ -66,7 +66,7 @@ function (queryDef) {
     esAgg.format = "epoch_millis";
 
     if (esAgg.interval === 'auto') {
-      esAgg.interval = "$interval";
+      esAgg.interval = "$__interval";
     }
 
     if (settings.missing) {

public/app/plugins/datasource/influxdb/influx_query.ts

@@ -23,7 +23,7 @@ export default class InfluxQuery {
     target.resultFormat = target.resultFormat || 'time_series';
     target.tags = target.tags || [];
     target.groupBy = target.groupBy || [
-      {type: 'time', params: ['$interval']},
+      {type: 'time', params: ['$__interval']},
       {type: 'fill', params: ['null']},
     ];
     target.select = target.select || [[

public/app/plugins/datasource/influxdb/specs/influx_query_specs.ts

@@ -12,7 +12,7 @@ describe('InfluxQuery', function() {
       }, templateSrv, {});
 
       var queryText = query.render();
-      expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE $timeFilter GROUP BY time($interval) fill(null)');
+      expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE $timeFilter GROUP BY time($__interval) fill(null)');
     });
   });
 
@@ -24,7 +24,7 @@ describe('InfluxQuery', function() {
       }, templateSrv, {});
 
       var queryText = query.render();
-      expect(queryText).to.be('SELECT mean("value") FROM "5m_avg"."cpu" WHERE $timeFilter GROUP BY time($interval) fill(null)');
+      expect(queryText).to.be('SELECT mean("value") FROM "5m_avg"."cpu" WHERE $timeFilter GROUP BY time($__interval) fill(null)');
     });
   });
 
@@ -43,7 +43,7 @@ describe('InfluxQuery', function() {
       }, templateSrv, {});
 
       var queryText = query.render();
-      expect(queryText).to.be('SELECT mean("value") /100 AS "text" FROM "cpu" WHERE $timeFilter GROUP BY time($interval) fill(null)');
+      expect(queryText).to.be('SELECT mean("value") /100 AS "text" FROM "cpu" WHERE $timeFilter GROUP BY time($__interval) fill(null)');
     });
   });
 
@@ -58,7 +58,7 @@ describe('InfluxQuery', function() {
       var queryText = query.render();
 
       expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "hostname" = \'server\\\\1\' AND $timeFilter'
-                          + ' GROUP BY time($interval)');
+                          + ' GROUP BY time($__interval)');
     });
 
     it('should switch regex operator with tag value is regex', function() {
@@ -69,7 +69,7 @@ describe('InfluxQuery', function() {
       }, templateSrv, {});
 
       var queryText = query.render();
-      expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "app" =~ /e.*/ AND $timeFilter GROUP BY time($interval)');
+      expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "app" =~ /e.*/ AND $timeFilter GROUP BY time($__interval)');
     });
   });
 
@@ -83,7 +83,7 @@ describe('InfluxQuery', function() {
 
       var queryText = query.render();
       expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "hostname" = \'server1\' AND "app" = \'email\' AND ' +
-                          '$timeFilter GROUP BY time($interval)');
+                          '$timeFilter GROUP BY time($__interval)');
     });
   });
 
@@ -97,7 +97,7 @@ describe('InfluxQuery', function() {
 
       var queryText = query.render();
       expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "hostname" = \'server1\' OR "hostname" = \'server2\' AND ' +
-                          '$timeFilter GROUP BY time($interval)');
+                          '$timeFilter GROUP BY time($__interval)');
     });
   });
 
@@ -124,7 +124,7 @@ describe('InfluxQuery', function() {
 
       var queryText = query.render();
       expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE $timeFilter ' +
-                          'GROUP BY time($interval), "host"');
+                          'GROUP BY time($__interval), "host"');
     });
   });
 
@@ -148,7 +148,7 @@ describe('InfluxQuery', function() {
         groupBy: [{type: 'time'}, {type: 'fill', params: ['0']}],
       }, templateSrv, {});
       var queryText = query.render();
-      expect(queryText).to.be('SELECT "value" FROM "cpu" WHERE $timeFilter GROUP BY time($interval) fill(0)');
+      expect(queryText).to.be('SELECT "value" FROM "cpu" WHERE $timeFilter GROUP BY time($__interval) fill(0)');
     });
   });