rdbms.vm.js 7.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266
  1. // Licensed to Cloudera, Inc. under one
  2. // or more contributor license agreements. See the NOTICE file
  3. // distributed with this work for additional information
  4. // regarding copyright ownership. Cloudera, Inc. licenses this file
  5. // to you under the Apache License, Version 2.0 (the
  6. // "License"); you may not use this file except in compliance
  7. // with the License. You may obtain a copy of the License at
  8. //
  9. // http://www.apache.org/licenses/LICENSE-2.0
  10. //
  11. // Unless required by applicable law or agreed to in writing, software
  12. // distributed under the License is distributed on an "AS IS" BASIS,
  13. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. // See the License for the specific language governing permissions and
  15. // limitations under the License.
  16. function RdbmsViewModel() {
  17. var self = this;
  18. self.servers = ko.observableArray();
  19. self.selectedServer = ko.observable(0);
  20. self.databases = ko.observableArray();
  21. self.selectedDatabase = ko.observable(0);
  22. self.query = ko.mapping.fromJS({
  23. 'id': -1,
  24. 'query': '',
  25. 'name': null,
  26. 'description': null,
  27. 'errors': []
  28. });
  29. self.rows = ko.observableArray();
  30. self.columns = ko.observableArray();
  31. self.resultsEmpty = ko.observable(false);
  32. self.server = ko.computed({
  33. 'read': function() {
  34. if (self.servers().length > 0) {
  35. return self.servers()[self.selectedServer()];
  36. } else{
  37. return null;
  38. }
  39. },
  40. 'write': function(value) {
  41. var filtered = $.each(self.servers(), function(index, server) {
  42. if (server.name() == value) {
  43. self.selectedServer(index);
  44. }
  45. });
  46. }
  47. });
  48. self.database = ko.computed({
  49. 'read': function() {
  50. if (self.databases()) {
  51. return self.databases()[self.selectedDatabase()];
  52. } else{
  53. return "";
  54. }
  55. },
  56. 'write': function(value) {
  57. self.selectedDatabase(self.databases.indexOf(value));
  58. }
  59. });
  60. self.getFirstDatabase = function() {
  61. if (self.databases()) {
  62. return self.databases()[0];
  63. } else {
  64. return null;
  65. }
  66. };
  67. self.getServerNiceName = function(value) {
  68. return self.servers[value];
  69. };
  70. self.updateResults = function(results) {
  71. var rows = [];
  72. self.columns.removeAll(); // Needed for datatables to refresh properly.
  73. self.columns(results.columns);
  74. $.each(results.rows, function(i, result_row) {
  75. var row = [];
  76. $.each(self.columns(), function(j, column) {
  77. row.push(result_row[column]);
  78. });
  79. rows.push(row);
  80. });
  81. self.rows(rows);
  82. };
  83. self.updateServers = function(servers) {
  84. var newServers = [];
  85. $.each(servers, function(name, nice_name) {
  86. newServers.push({
  87. 'name': ko.observable(name),
  88. 'nice_name': ko.observable(nice_name)
  89. });
  90. });
  91. self.servers(newServers);
  92. var last = $.totalStorage('hueRdbmsLastServer') || ((newServers[0].length > 0) ? newServers[0].name() : null);
  93. if (last) {
  94. self.server(last);
  95. }
  96. };
  97. self.updateDatabases = function(databases) {
  98. self.databases(databases);
  99. var key = 'hueRdbmsLastDatabase-' + self.server().name();
  100. var last = $.totalStorage(key) || ((databases.length > 0) ? databases[0] : null);
  101. if (last) {
  102. self.database(last);
  103. }
  104. };
  105. self.updateQuery = function(design) {
  106. self.query.query(design.query);
  107. self.query.id(design.id);
  108. self.query.name(design.name);
  109. self.query.description(design.desc);
  110. self.database(design.database);
  111. self.server(design.server);
  112. };
  113. self.chooseServer = function(value, e) {
  114. $.each(self.servers(), function(index, server) {
  115. if (server.name() == value.name()) {
  116. self.selectedServer(index);
  117. }
  118. });
  119. $.totalStorage('hueRdbmsLastServer', self.server().name());
  120. self.fetchDatabases();
  121. };
  122. self.chooseDatabase = function(value, e) {
  123. var key = 'hueRdbmsLastDatabase-' + self.server().name();
  124. self.selectedDatabase(self.databases.indexOf(value));
  125. $.totalStorage(key, value);
  126. };
  127. self.explainQuery = function() {
  128. var data = ko.mapping.toJS(self.query);
  129. data.database = self.database();
  130. data.server = self.server().name();
  131. var request = {
  132. url: '/rdbms/api/explain/',
  133. dataType: 'json',
  134. type: 'POST',
  135. success: function(data) {
  136. self.query.errors.removeAll();
  137. if (data.status === 0) {
  138. $(document).trigger('explain.query', data);
  139. self.updateResults(data.results);
  140. self.query.id(data.design);
  141. self.resultsEmpty(data.results.rows.length === 0);
  142. $(document).trigger('explained.query', data);
  143. } else {
  144. self.query.errors.push(data.message);
  145. }
  146. },
  147. error: $.noop,
  148. data: data
  149. };
  150. $.ajax(request);
  151. };
  152. self.fetchQuery = function(id) {
  153. var _id = id || self.query.id();
  154. if (_id && _id != -1) {
  155. var request = {
  156. url: '/rdbms/api/query/' + _id + '/get',
  157. dataType: 'json',
  158. type: 'GET',
  159. success: function(data) {
  160. self.updateQuery(data.design);
  161. },
  162. error: $.noop
  163. };
  164. $.ajax(request);
  165. }
  166. };
  167. self.saveQuery = function() {
  168. var self = this;
  169. if (self.query.query() && self.query.name()) {
  170. var data = ko.mapping.toJS(self.query);
  171. data['desc'] = data['description'];
  172. data['server'] = self.server().name();
  173. data['database'] = self.database();
  174. var url = '/rdbms/api/query/';
  175. if (self.query.id() && self.query.id() != -1) {
  176. url += self.query.id() + '/';
  177. }
  178. var request = {
  179. url: url,
  180. dataType: 'json',
  181. type: 'POST',
  182. success: function(data) {
  183. $(document).trigger('saved.query', data);
  184. },
  185. error: function() {
  186. $(document).trigger('error.query');
  187. },
  188. data: data
  189. };
  190. $.ajax(request);
  191. }
  192. };
  193. self.executeQuery = function() {
  194. var data = ko.mapping.toJS(self.query);
  195. data.database = self.database();
  196. data.server = self.server().name();
  197. var request = {
  198. url: '/rdbms/api/execute/',
  199. dataType: 'json',
  200. type: 'POST',
  201. success: function(data) {
  202. self.query.errors.removeAll();
  203. if (data.status === 0) {
  204. $(document).trigger('execute.query', data);
  205. self.updateResults(data.results);
  206. self.query.id(data.design);
  207. self.resultsEmpty(data.results.rows.length === 0);
  208. $(document).trigger('executed.query', data);
  209. } else {
  210. self.query.errors.push(data.message);
  211. }
  212. },
  213. error: $.noop,
  214. data: data
  215. };
  216. $.ajax(request);
  217. };
  218. self.fetchServers = function() {
  219. var request = {
  220. url: '/rdbms/api/servers/',
  221. dataType: 'json',
  222. type: 'GET',
  223. success: function(data) {
  224. self.updateServers(data.servers);
  225. self.fetchDatabases();
  226. },
  227. error: $.noop
  228. };
  229. $.ajax(request);
  230. };
  231. self.fetchDatabases = function() {
  232. if (self.server()) {
  233. var request = {
  234. url: '/rdbms/api/servers/' + self.server().name() + '/databases/',
  235. dataType: 'json',
  236. type: 'GET',
  237. success: function(data) {
  238. self.updateDatabases(data.databases);
  239. },
  240. error: $.noop
  241. };
  242. $.ajax(request);
  243. }
  244. };
  245. }