Enable "Run Query in New Tab" in SQL Lab (#1343)

* Enable "Clone to New Tab" btn in QueryHistoryTable

Method #1; doesn't feel very clean.

Going to attempt to reimplement using an action and changing state directly
through the reducer rather than creating a new QueryEditor object directly from
the QueryTable

* Move Clone Logic to Action

* Implement PR feedback

* Clean up reducer action; fix bug

Bug => Attempting to clone anything other than the most recent Query for a given
TabbedQueryEditor would throw an exception, because we depended on lastQueryId
to find the title of the QueryEditor to clone. Since you can only activate a
clone from the currently active tab, we can instead fetch the ID of the Editor
to copy the Title of from the tip of tabHistory.

* Tests for Reducer Action

* Fix CodeClimate feedback

caravel/assets/javascripts/SqlLab/actions.js

@@ -1,5 +1,6 @@
 export const RESET_STATE = 'RESET_STATE';
 export const ADD_QUERY_EDITOR = 'ADD_QUERY_EDITOR';
+export const CLONE_QUERY_TO_NEW_TAB = 'CLONE_QUERY_TO_NEW_TAB';
 export const REMOVE_QUERY_EDITOR = 'REMOVE_QUERY_EDITOR';
 export const ADD_TABLE = 'ADD_TABLE';
 export const REMOVE_TABLE = 'REMOVE_TABLE';
@@ -37,6 +38,10 @@ export function addQueryEditor(queryEditor) {
   return { type: ADD_QUERY_EDITOR, queryEditor };
 }
 
+export function cloneQueryToNewTab(query) {
+  return { type: CLONE_QUERY_TO_NEW_TAB, query };
+}
+
 export function setNetworkStatus(networkOn) {
   return { type: SET_NETWORK_STATUS, networkOn };
 }

caravel/assets/javascripts/SqlLab/components/QueryTable.jsx

@@ -41,10 +41,11 @@ class QueryTable extends React.Component {
   restoreSql(query) {
     this.props.actions.queryEditorSetSql({ id: query.sqlEditorId }, query.sql);
   }
-  notImplemented() {
-    /* eslint no-alert: 0 */
-    alert('Not implemented yet!');
+
+  openQueryInNewTab(query) {
+    this.props.actions.cloneQueryToNewTab(query);
   }
+
   render() {
     const data = this.props.queries.map((query) => {
       const q = Object.assign({}, query);
@@ -112,7 +113,7 @@ class QueryTable extends React.Component {
           />
           <Link
             className="fa fa-plus-circle m-r-3"
-            onClick={self.notImplemented}
+            onClick={this.openQueryInNewTab.bind(this, query)}
             tooltip="Run query in a new tab"
             placement="top"
           />

caravel/assets/javascripts/SqlLab/reducers.js

@@ -34,6 +34,20 @@ export const sqlLabReducer = function (state, action) {
       const newState = Object.assign({}, state, { tabHistory });
       return addToArr(newState, 'queryEditors', action.queryEditor);
     },
+    [actions.CLONE_QUERY_TO_NEW_TAB]() {
+      const progenitor = state.queryEditors.find((qe) =>
+          qe.id === state.tabHistory[state.tabHistory.length - 1]);
+      const qe = {
+        id: shortid.generate(),
+        title: `Copy of ${progenitor.title}`,
+        dbId: (action.query.dbId) ? action.query.dbId : null,
+        schema: (action.query.schema) ? action.query.schema : null,
+        autorun: true,
+        sql: action.query.sql,
+      };
+
+      return sqlLabReducer(state, actions.addQueryEditor(qe));
+    },
     [actions.REMOVE_QUERY_EDITOR]() {
       let newState = removeFromArr(state, 'queryEditors', action.queryEditor);
       // List of remaining queryEditor ids

caravel/assets/spec/javascripts/sqllab/reducers_spec.js

@@ -0,0 +1,28 @@
+import * as r from '../../../javascripts/SqlLab/reducers';
+import * as actions from '../../../javascripts/SqlLab/actions';
+import { describe, it } from 'mocha';
+import { expect } from 'chai';
+
+describe('sqlLabReducer', () => {
+  describe('CLONE_QUERY_TO_NEW_TAB', () => {
+    const testQuery = { sql: 'SELECT * FROM...', dbId: 1, id: 1 };
+    const state = Object.assign(r.initialState, { queries: [testQuery] });
+    const newState = r.sqlLabReducer(state, actions.cloneQueryToNewTab(testQuery));
+
+    it('should have at most one more tab', () => {
+      expect(newState.queryEditors).have.length(2);
+    });
+  
+    it('should have the same SQL as the cloned query', () => {
+      expect(newState.queryEditors[1].sql).to.equal(testQuery.sql);
+    });
+
+    it('should prefix the new tab title with "Copy of"', () => {
+      expect(newState.queryEditors[1].title).to.include('Copy of');
+    });
+
+    it('should push the cloned tab onto tab history stack', () => {
+      expect(newState.tabHistory[1]).to.eq(newState.queryEditors[1].id);
+    });
+  });
+});