Add options for table

dist/datasource-zabbix/partials/query.editor.html

@@ -17,6 +17,17 @@
         <select class="gf-form-input gf-size-auto" ng-model="ctrl.target.resultFormat" ng-options="f.value as f.text for f in ctrl.resultFormats" ng-change="ctrl.refresh()"></select>
       </div>
     </div>
+    <div class="gf-form" ng-show="ctrl.target.mode == editorMode.TEXT && ctrl.target.resultFormat === 'table'">
+      <label class="gf-form-label query-keyword width-8">Options</label>
+      <gf-form-switch class="gf-form" label="Host" checked="ctrl.target.table.host" on-change="ctrl.onTargetBlur()">
+      </gf-form-switch>
+      <gf-form-switch class="gf-form" label="Item" checked="ctrl.target.table.item" on-change="ctrl.onTargetBlur()">
+      </gf-form-switch>
+      <gf-form-switch class="gf-form" label="Key" checked="ctrl.target.table.key" on-change="ctrl.onTargetBlur()">
+      </gf-form-switch>
+      <gf-form-switch class="gf-form" label="Skip empty values" checked="ctrl.target.table.skipEmptyValues" on-change="ctrl.onTargetBlur()">
+      </gf-form-switch>
+    </div>
     <div class="gf-form gf-form--grow">
       <div class="gf-form-label gf-form-label--grow"></div>
     </div>

dist/datasource-zabbix/query.controller.js

@@ -147,6 +147,12 @@ System.register(['app/plugins/sdk', 'lodash', './constants', './utils', './metri
               },
               'options': {
                 'showDisabledItems': false
+              },
+              'table': {
+                'host': true,
+                'item': true,
+                'key': true,
+                'skipEmptyValues': false
               }
             };
             _.defaults(target, targetDefaults);

dist/datasource-zabbix/responseHandler.js

@@ -74,9 +74,15 @@ System.register(['lodash', 'app/core/table_model', './constants'], function (_ex
     return convertHistory(history, items, addHostName, convertTextCallback);
   }function handleHistoryAsTable(history, items, target) {
     var table = new TableModel();
-    table.addColumn({ text: 'Host' });
-    table.addColumn({ text: 'Item' });
-    table.addColumn({ text: 'Key' });
+    if (target.table.host) {
+      table.addColumn({ text: 'Host' });
+    }
+    if (target.table.item) {
+      table.addColumn({ text: 'Item' });
+    }
+    if (target.table.key) {
+      table.addColumn({ text: 'Key' });
+    }
     table.addColumn({ text: 'Last value' });
 
     var grouped_history = _.groupBy(history, 'itemid');
@@ -85,6 +91,10 @@ System.register(['lodash', 'app/core/table_model', './constants'], function (_ex
       var lastPoint = _.last(itemHistory);
       var lastValue = lastPoint ? lastPoint.value : null;
 
+      if (target.table.skipEmptyValues && (!lastValue || lastValue === '')) {
+        return;
+      }
+
       // Regex-based extractor
       if (target.textFilter) {
         lastValue = extractText(lastValue, target.textFilter, target.useCaptureGroups);
@@ -93,7 +103,19 @@ System.register(['lodash', 'app/core/table_model', './constants'], function (_ex
       var host = _.first(item.hosts);
       host = host ? host.name : "";
 
-      table.rows.push([host, item.name, item.key_, lastValue]);
+      var row = [];
+      if (target.table.host) {
+        row.push(host);
+      }
+      if (target.table.item) {
+        row.push(item.name);
+      }
+      if (target.table.key) {
+        row.push(item.key_);
+      }
+      row.push(lastValue);
+
+      table.rows.push(row);
     });
 
     return table;

dist/datasource-zabbix/specs/datasource.spec.js

@@ -126,7 +126,13 @@ describe('ZabbixDatasource', () => {
             textFilter: "",
             useCaptureGroups: true,
             mode: 2,
-            resultFormat: "table"
+            resultFormat: "table",
+            table: {
+              host: true,
+              item: true,
+              key: true,
+              skipEmptyValues: false
+            }
           }
         ],
       };
@@ -155,6 +161,38 @@ describe('ZabbixDatasource', () => {
         done();
       });
     });
+
+    it('should return table only with `Last value` column when other columns are not selected', () => {
+      ctx.options.targets[0].table = {
+        host: false,
+        item: false,
+        key: false,
+        skipEmptyValues: false
+      };
+      return ctx.ds.query(ctx.options).then(result => {
+        let tableData = result.data[0];
+        expect(tableData.columns.length).toBe(1);
+        expect(tableData.columns[0].text).toEqual('Last value');
+        expect(tableData.rows[0].length).toBe(1);
+        expect(tableData.rows[0][0]).toEqual('Linux last');
+      });
+    });
+
+    it('should skip item when last value is empty', () => {
+      ctx.options.targets[0].skipEmptyValues = true;
+      ctx.ds.zabbix.getHistory = jest.fn().mockReturnValue(Promise.resolve([
+          {clock: "1500010200", itemid:"10100", ns:"900111000", value:"Linux first"},
+          {clock: "1500010300", itemid:"10100", ns:"900111000", value:"Linux 2nd"},
+          {clock: "1500010400", itemid:"10100", ns:"900111000", value:"Linux last"},
+          {clock: "1500010200", itemid:"90109", ns:"900111000", value:"Non empty value"},
+          {clock: "1500010500", itemid:"90109", ns:"900111000", value:""}
+      ]));
+      return ctx.ds.query(ctx.options).then(result => {
+        let tableData = result.data[0];
+        expect(tableData.rows.length).toBe(1);
+        expect(tableData.rows[0][3]).toEqual('Linux last');
+      });
+    });
   });
 
   describe('When replacing template variables', () => {