| 1 | (function($) { |
| 2 | var CRM = (window.CRM) ? (window.CRM) : (window.CRM = {}); |
| 3 | if (!CRM.Backbone) CRM.Backbone = {}; |
| 4 | |
| 5 | /** |
| 6 | * Backbone.sync provider which uses CRM.api() for I/O. |
| 7 | * To support CRUD operations, model classes must be defined with a "crmEntityName" property. |
| 8 | * To load collections using API queries, set the "crmCriteria" property or override the |
| 9 | * method "toCrmCriteria". |
| 10 | * |
| 11 | * @param method Accepts normal Backbone.sync methods; also accepts "crm-replace" |
| 12 | * @param model |
| 13 | * @param options |
| 14 | * @see tests/qunit/crm-backbone |
| 15 | */ |
| 16 | CRM.Backbone.sync = function(method, model, options) { |
| 17 | var isCollection = _.isArray(model.models); |
| 18 | |
| 19 | if (isCollection) { |
| 20 | var apiOptions = { |
| 21 | success: function(data) { |
| 22 | // unwrap data |
| 23 | options.success(_.toArray(data.values)); |
| 24 | }, |
| 25 | error: function(data) { |
| 26 | // CRM.api displays errors by default, but Backbone.sync |
| 27 | // protocol requires us to override "error". This restores |
| 28 | // the default behavior. |
| 29 | $().crmError(data.error_message, ts('Error')); |
| 30 | options.error(data); |
| 31 | } |
| 32 | }; |
| 33 | switch (method) { |
| 34 | case 'read': |
| 35 | CRM.api(model.crmEntityName, 'get', model.toCrmCriteria(), apiOptions); |
| 36 | break; |
| 37 | // replace all entities matching "x.crmCriteria" with new entities in "x.models" |
| 38 | case 'crm-replace': |
| 39 | var params = this.toCrmCriteria(); |
| 40 | params.version = 3; |
| 41 | params.values = this.toJSON(); |
| 42 | CRM.api(model.crmEntityName, 'replace', params, apiOptions); |
| 43 | break; |
| 44 | default: |
| 45 | apiOptions.error({is_error: 1, error_message: "CRM.Backbone.sync(" + method + ") not implemented for collections"}); |
| 46 | break; |
| 47 | } |
| 48 | } else { |
| 49 | // callback options to pass to CRM.api |
| 50 | var apiOptions = { |
| 51 | success: function(data) { |
| 52 | // unwrap data |
| 53 | var values = _.toArray(data['values']); |
| 54 | if (data.count == 1) { |
| 55 | options.success(values[0]); |
| 56 | } else { |
| 57 | data.is_error = 1; |
| 58 | data.error_message = ts("Expected exactly one response"); |
| 59 | apiOptions.error(data); |
| 60 | } |
| 61 | }, |
| 62 | error: function(data) { |
| 63 | // CRM.api displays errors by default, but Backbone.sync |
| 64 | // protocol requires us to override "error". This restores |
| 65 | // the default behavior. |
| 66 | $().crmError(data.error_message, ts('Error')); |
| 67 | options.error(data); |
| 68 | } |
| 69 | }; |
| 70 | switch (method) { |
| 71 | case 'create': // pass-through |
| 72 | case 'update': |
| 73 | var params = model.toJSON(); |
| 74 | params.options || (params.options = {}); |
| 75 | params.options.reload = 1; |
| 76 | if (!model._isDuplicate) { |
| 77 | CRM.api(model.crmEntityName, 'create', params, apiOptions); |
| 78 | } else { |
| 79 | CRM.api(model.crmEntityName, 'duplicate', params, apiOptions); |
| 80 | } |
| 81 | break; |
| 82 | case 'read': |
| 83 | case 'delete': |
| 84 | var apiAction = (method == 'delete') ? 'delete' : 'get'; |
| 85 | var params = model.toCrmCriteria(); |
| 86 | if (!params.id) { |
| 87 | apiOptions.error({is_error: 1, error_message: 'Missing ID for ' + model.crmEntityName}); |
| 88 | return; |
| 89 | } |
| 90 | CRM.api(model.crmEntityName, apiAction, params, apiOptions); |
| 91 | break; |
| 92 | default: |
| 93 | apiOptions.error({is_error: 1, error_message: "CRM.Backbone.sync(" + method + ") not implemented for models"}); |
| 94 | } |
| 95 | } |
| 96 | }; |
| 97 | |
| 98 | /** |
| 99 | * Connect a "model" class to CiviCRM's APIv3 |
| 100 | * |
| 101 | * @code |
| 102 | * // Setup class |
| 103 | * var ContactModel = Backbone.Model.extend({}); |
| 104 | * CRM.Backbone.extendModel(ContactModel, "Contact"); |
| 105 | * |
| 106 | * // Use class |
| 107 | * c = new ContactModel({id: 3}); |
| 108 | * c.fetch(); |
| 109 | * @endcode |
| 110 | * |
| 111 | * @param Class ModelClass |
| 112 | * @param string crmEntityName APIv3 entity name, such as "Contact" or "CustomField" |
| 113 | * @see tests/qunit/crm-backbone |
| 114 | */ |
| 115 | CRM.Backbone.extendModel = function(ModelClass, crmEntityName) { |
| 116 | // Defaults - if specified in ModelClass, preserve |
| 117 | _.defaults(ModelClass.prototype, { |
| 118 | crmEntityName: crmEntityName, |
| 119 | toCrmCriteria: function() { |
| 120 | return (this.get('id')) ? {id: this.get('id')} : {}; |
| 121 | }, |
| 122 | duplicate: function() { |
| 123 | var newModel = new ModelClass(this.toJSON()); |
| 124 | newModel._isDuplicate = true; |
| 125 | if (newModel.setModified) newModel.setModified(); |
| 126 | newModel.listenTo(newModel, 'sync', function(){ |
| 127 | // may get called on subsequent resaves -- don't care! |
| 128 | delete newModel._isDuplicate; |
| 129 | }); |
| 130 | return newModel; |
| 131 | } |
| 132 | }); |
| 133 | // Overrides - if specified in ModelClass, replace |
| 134 | _.extend(ModelClass.prototype, { |
| 135 | sync: CRM.Backbone.sync |
| 136 | }); |
| 137 | }; |
| 138 | |
| 139 | /** |
| 140 | * Configure a model class to track whether a model has unsaved changes. |
| 141 | * |
| 142 | * Methods: |
| 143 | * - setModified() - flag the model as modified/dirty |
| 144 | * - isSaved() - return true if there have been no changes to the data since the last fetch or save |
| 145 | * Events: |
| 146 | * - saved(object model, bool is_saved) - triggered whenever isSaved() value would change |
| 147 | * |
| 148 | * Note: You should not directly call isSaved() within the context of the success/error/sync callback; |
| 149 | * I haven't found a way to make isSaved() behave correctly within these callbacks without patching |
| 150 | * Backbone. Instead, attach an event listener to the 'saved' event. |
| 151 | * |
| 152 | * @param ModelClass |
| 153 | */ |
| 154 | CRM.Backbone.trackSaved = function(ModelClass) { |
| 155 | // Retain references to some of the original class's functions |
| 156 | var Parent = _.pick(ModelClass.prototype, 'initialize', 'save', 'fetch'); |
| 157 | |
| 158 | // Private callback |
| 159 | var onSyncSuccess = function() { |
| 160 | this._modified = false; |
| 161 | if (this._oldModified.length > 0) { |
| 162 | this._oldModified.pop(); |
| 163 | } |
| 164 | this.trigger('saved', this, this.isSaved()); |
| 165 | }; |
| 166 | var onSaveError = function() { |
| 167 | if (this._oldModified.length > 0) { |
| 168 | this._modified = this._oldModified.pop(); |
| 169 | this.trigger('saved', this, this.isSaved()); |
| 170 | } |
| 171 | }; |
| 172 | |
| 173 | // Defaults - if specified in ModelClass, preserve |
| 174 | _.defaults(ModelClass.prototype, { |
| 175 | isSaved: function() { |
| 176 | var result = !this.isNew() && !this.isModified(); |
| 177 | return result; |
| 178 | }, |
| 179 | isModified: function() { |
| 180 | return this._modified; |
| 181 | }, |
| 182 | _saved_onchange: function(model, options) { |
| 183 | if (options.parse) return; |
| 184 | // console.log('change', model.changedAttributes(), model.previousAttributes()); |
| 185 | this.setModified(); |
| 186 | }, |
| 187 | setModified: function() { |
| 188 | var oldModified = this._modified; |
| 189 | this._modified = true; |
| 190 | if (!oldModified) { |
| 191 | this.trigger('saved', this, this.isSaved()); |
| 192 | } |
| 193 | } |
| 194 | }); |
| 195 | |
| 196 | // Overrides - if specified in ModelClass, replace |
| 197 | _.extend(ModelClass.prototype, { |
| 198 | initialize: function(options) { |
| 199 | this._modified = false; |
| 200 | this._oldModified = []; |
| 201 | this.listenTo(this, 'change', this._saved_onchange); |
| 202 | this.listenTo(this, 'error', onSaveError); |
| 203 | this.listenTo(this, 'sync', onSyncSuccess); |
| 204 | if (Parent.initialize) { |
| 205 | return Parent.initialize.apply(this, arguments); |
| 206 | } |
| 207 | }, |
| 208 | save: function() { |
| 209 | // we'll assume success |
| 210 | this._oldModified.push(this._modified); |
| 211 | return Parent.save.apply(this, arguments); |
| 212 | }, |
| 213 | fetch: function() { |
| 214 | this._oldModified.push(this._modified); |
| 215 | return Parent.fetch.apply(this, arguments); |
| 216 | } |
| 217 | }); |
| 218 | }; |
| 219 | |
| 220 | /** |
| 221 | * Configure a model class to support client-side soft deletion. |
| 222 | * One can call "model.setDeleted(BOOLEAN)" to flag an entity for |
| 223 | * deletion (or not) -- however, deletion will be deferred until save() |
| 224 | * is called. |
| 225 | * |
| 226 | * Methods: |
| 227 | * setSoftDeleted(boolean) - flag the model as deleted (or not-deleted) |
| 228 | * isSoftDeleted() - determine whether model has been soft-deleted |
| 229 | * Events: |
| 230 | * softDelete(model, is_deleted) -- change value of is_deleted |
| 231 | * |
| 232 | * @param ModelClass |
| 233 | */ |
| 234 | CRM.Backbone.trackSoftDelete = function(ModelClass) { |
| 235 | // Retain references to some of the original class's functions |
| 236 | var Parent = _.pick(ModelClass.prototype, 'save'); |
| 237 | |
| 238 | // Defaults - if specified in ModelClass, preserve |
| 239 | _.defaults(ModelClass.prototype, { |
| 240 | is_soft_deleted: false, |
| 241 | setSoftDeleted: function(is_deleted) { |
| 242 | if (this.is_soft_deleted != is_deleted) { |
| 243 | this.is_soft_deleted = is_deleted; |
| 244 | this.trigger('softDelete', this, is_deleted); |
| 245 | if (this.setModified) this.setModified(); // FIXME: ugly interaction, trackSoftDelete-trackSaved |
| 246 | } |
| 247 | }, |
| 248 | isSoftDeleted: function() { |
| 249 | return this.is_soft_deleted; |
| 250 | } |
| 251 | }); |
| 252 | |
| 253 | // Overrides - if specified in ModelClass, replace |
| 254 | _.extend(ModelClass.prototype, { |
| 255 | save: function(attributes, options) { |
| 256 | if (this.isSoftDeleted()) { |
| 257 | return this.destroy(options); |
| 258 | } else { |
| 259 | return Parent.save.apply(this, arguments); |
| 260 | } |
| 261 | } |
| 262 | }); |
| 263 | }; |
| 264 | |
| 265 | /** |
| 266 | * Connect a "collection" class to CiviCRM's APIv3 |
| 267 | * |
| 268 | * Note: the collection supports a special property, crmCriteria, which is an array of |
| 269 | * query options to send to the API. |
| 270 | * |
| 271 | * @code |
| 272 | * // Setup class |
| 273 | * var ContactModel = Backbone.Model.extend({}); |
| 274 | * CRM.Backbone.extendModel(ContactModel, "Contact"); |
| 275 | * var ContactCollection = Backbone.Collection.extend({ |
| 276 | * model: ContactModel |
| 277 | * }); |
| 278 | * CRM.Backbone.extendCollection(ContactCollection); |
| 279 | * |
| 280 | * // Use class |
| 281 | * var c = new ContactCollection([], { |
| 282 | * crmCriteria: {contact_type: 'Organization'} |
| 283 | * }); |
| 284 | * c.fetch(); |
| 285 | * c.get(123).set('property', 'value'); |
| 286 | * c.get(456).setDeleted(true); |
| 287 | * c.save(); |
| 288 | * @endcode |
| 289 | * |
| 290 | * @param Class CollectionClass |
| 291 | * @see tests/qunit/crm-backbone |
| 292 | */ |
| 293 | CRM.Backbone.extendCollection = function(CollectionClass) { |
| 294 | var origInit = CollectionClass.prototype.initialize; |
| 295 | // Defaults - if specified in CollectionClass, preserve |
| 296 | _.defaults(CollectionClass.prototype, { |
| 297 | crmEntityName: CollectionClass.prototype.model.prototype.crmEntityName, |
| 298 | toCrmCriteria: function() { |
| 299 | return (this.crmCriteria) ? _.extend({}, this.crmCriteria) : {}; |
| 300 | }, |
| 301 | |
| 302 | /** |
| 303 | * Reconcile the server's collection with the client's collection. |
| 304 | * New/modified items from the client will be saved/updated on the |
| 305 | * server. Deleted items from the client will be deleted on the |
| 306 | * server. |
| 307 | * |
| 308 | * @param Object options - accepts "success" and "error" callbacks |
| 309 | */ |
| 310 | save: function(options) { |
| 311 | options || (options = {}); |
| 312 | var collection = this; |
| 313 | var success = options.success; |
| 314 | options.success = function(resp) { |
| 315 | // Ensure attributes are restored during synchronous saves. |
| 316 | collection.reset(resp, options); |
| 317 | if (success) success(collection, resp, options); |
| 318 | // collection.trigger('sync', collection, resp, options); |
| 319 | }; |
| 320 | wrapError(collection, options); |
| 321 | |
| 322 | return this.sync('crm-replace', this, options) |
| 323 | } |
| 324 | }); |
| 325 | // Overrides - if specified in CollectionClass, replace |
| 326 | _.extend(CollectionClass.prototype, { |
| 327 | sync: CRM.Backbone.sync, |
| 328 | initialize: function(models, options) { |
| 329 | options || (options = {}); |
| 330 | if (options.crmCriteria) { |
| 331 | this.crmCriteria = options.crmCriteria; |
| 332 | } |
| 333 | if (origInit) { |
| 334 | return origInit.apply(this, arguments); |
| 335 | } |
| 336 | }, |
| 337 | toJSON: function() { |
| 338 | var result = []; |
| 339 | // filter models list, excluding any soft-deleted items |
| 340 | this.each(function(model) { |
| 341 | // if model doesn't track soft-deletes |
| 342 | // or if model tracks soft-deletes and wasn't soft-deleted |
| 343 | if (!model.isSoftDeleted || !model.isSoftDeleted()) { |
| 344 | result.push(model.toJSON()); |
| 345 | } |
| 346 | }); |
| 347 | return result; |
| 348 | } |
| 349 | }); |
| 350 | }; |
| 351 | |
| 352 | /** |
| 353 | * Find a single record, or create a new record. |
| 354 | * |
| 355 | * @param Object options: |
| 356 | * - CollectionClass: class |
| 357 | * - crmCriteria: Object values to search/default on |
| 358 | * - defaults: Object values to put on newly created model (if needed) |
| 359 | * - success: function(model) |
| 360 | * - error: function(collection, error) |
| 361 | */ |
| 362 | CRM.Backbone.findCreate = function(options) { |
| 363 | options || (options = {}); |
| 364 | var collection = new options.CollectionClass([], { |
| 365 | crmCriteria: options.crmCriteria |
| 366 | }); |
| 367 | collection.fetch({ |
| 368 | success: function(collection) { |
| 369 | if (collection.length == 0) { |
| 370 | var attrs = _.extend({}, collection.crmCriteria, options.defaults || {}); |
| 371 | var model = collection._prepareModel(attrs, options); |
| 372 | options.success(model); |
| 373 | } else if (collection.length == 1) { |
| 374 | options.success(collection.first()); |
| 375 | } else { |
| 376 | options.error(collection, { |
| 377 | is_error: 1, |
| 378 | error_message: 'Too many matches' |
| 379 | }); |
| 380 | } |
| 381 | }, |
| 382 | error: function(collection, errorData) { |
| 383 | if (options.error) { |
| 384 | options.error(collection, errorData); |
| 385 | } |
| 386 | } |
| 387 | }); |
| 388 | }; |
| 389 | |
| 390 | |
| 391 | CRM.Backbone.Model = Backbone.Model.extend({ |
| 392 | /** |
| 393 | * Return JSON version of model -- but only include fields that are |
| 394 | * listed in the 'schema'. |
| 395 | * |
| 396 | * @return {*} |
| 397 | */ |
| 398 | toStrictJSON: function() { |
| 399 | var schema = this.schema; |
| 400 | var result = this.toJSON(); |
| 401 | _.each(result, function(value, key) { |
| 402 | if (!schema[key]) { |
| 403 | delete result[key]; |
| 404 | } |
| 405 | }); |
| 406 | return result; |
| 407 | }, |
| 408 | setRel: function(key, value, options) { |
| 409 | this.rels = this.rels || {}; |
| 410 | if (this.rels[key] != value) { |
| 411 | this.rels[key] = value; |
| 412 | this.trigger("rel:" + key, value); |
| 413 | } |
| 414 | }, |
| 415 | getRel: function(key) { |
| 416 | return this.rels ? this.rels[key] : null; |
| 417 | } |
| 418 | }); |
| 419 | |
| 420 | CRM.Backbone.Collection = Backbone.Collection.extend({ |
| 421 | /** |
| 422 | * Store 'key' on this.rel and automatically copy it to |
| 423 | * any children. |
| 424 | * |
| 425 | * @param key |
| 426 | * @param value |
| 427 | * @param initialModels |
| 428 | */ |
| 429 | initializeCopyToChildrenRelation: function(key, value, initialModels) { |
| 430 | this.setRel(key, value, {silent: true}); |
| 431 | this.on('reset', this._copyToChildren, this); |
| 432 | this.on('add', this._copyToChild, this); |
| 433 | }, |
| 434 | _copyToChildren: function() { |
| 435 | var collection = this; |
| 436 | collection.each(function(model) { |
| 437 | collection._copyToChild(model); |
| 438 | }); |
| 439 | }, |
| 440 | _copyToChild: function(model) { |
| 441 | _.each(this.rels, function(relValue, relKey) { |
| 442 | model.setRel(relKey, relValue, {silent: true}); |
| 443 | }); |
| 444 | }, |
| 445 | setRel: function(key, value, options) { |
| 446 | this.rels = this.rels || {}; |
| 447 | if (this.rels[key] != value) { |
| 448 | this.rels[key] = value; |
| 449 | this.trigger("rel:" + key, value); |
| 450 | } |
| 451 | }, |
| 452 | getRel: function(key) { |
| 453 | return this.rels ? this.rels[key] : null; |
| 454 | } |
| 455 | }); |
| 456 | |
| 457 | /* |
| 458 | CRM.Backbone.Form = Backbone.Form.extend({ |
| 459 | validate: function() { |
| 460 | // Add support for form-level validators |
| 461 | var errors = Backbone.Form.prototype.validate.apply(this, []) || {}; |
| 462 | var self = this; |
| 463 | if (this.validators) { |
| 464 | _.each(this.validators, function(validator) { |
| 465 | var modelErrors = validator(this.getValue()); |
| 466 | |
| 467 | // The following if() has been copied-pasted from the parent's |
| 468 | // handling of model-validators. They are similar in that the errors are |
| 469 | // probably keyed by field names... but not necessarily, so we use _others |
| 470 | // as a fallback. |
| 471 | if (modelErrors) { |
| 472 | var isDictionary = _.isObject(modelErrors) && !_.isArray(modelErrors); |
| 473 | |
| 474 | //If errors are not in object form then just store on the error object |
| 475 | if (!isDictionary) { |
| 476 | errors._others = errors._others || []; |
| 477 | errors._others.push(modelErrors); |
| 478 | } |
| 479 | |
| 480 | //Merge programmatic errors (requires model.validate() to return an object e.g. { fieldKey: 'error' }) |
| 481 | if (isDictionary) { |
| 482 | _.each(modelErrors, function(val, key) { |
| 483 | //Set error on field if there isn't one already |
| 484 | if (self.fields[key] && !errors[key]) { |
| 485 | self.fields[key].setError(val); |
| 486 | errors[key] = val; |
| 487 | } |
| 488 | |
| 489 | else { |
| 490 | //Otherwise add to '_others' key |
| 491 | errors._others = errors._others || []; |
| 492 | var tmpErr = {}; |
| 493 | tmpErr[key] = val; |
| 494 | errors._others.push(tmpErr); |
| 495 | } |
| 496 | }); |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | }); |
| 501 | } |
| 502 | return _.isEmpty(errors) ? null : errors; |
| 503 | } |
| 504 | }); |
| 505 | */ |
| 506 | |
| 507 | // Wrap an optional error callback with a fallback error event. |
| 508 | var wrapError = function (model, options) { |
| 509 | var error = options.error; |
| 510 | options.error = function(resp) { |
| 511 | if (error) error(model, resp, options); |
| 512 | model.trigger('error', model, resp, options); |
| 513 | }; |
| 514 | }; |
| 515 | })(cj); |