Add Webdav specific models and collections

core/js/oc-backbone-webdav.js

@@ -142,8 +142,8 @@
 			var changedProp = davProperties[key];
 			var value = attrs[key];
 			if (!changedProp) {
-				console.warn('No matching DAV property for property "' + key);
-				changedProp = key;
+				// no matching DAV property for property, skip
+				continue;
 			}
 			if (_.isBoolean(value) || _.isNumber(value)) {
 				// convert to string
@@ -179,10 +179,10 @@
 		});
 	}
 
-	function callPropPatch(client, options, model, headers) {
+	function callPropPatch(client, options, model, headers, changed) {
 		return client.propPatch(
 			options.url,
-			convertModelAttributesToDavProperties(model.changed, options.davProperties),
+			convertModelAttributesToDavProperties(changed || model.changed, options.davProperties),
 			headers
 		).then(function(result) {
 			if (isSuccessStatus(result.status)) {
@@ -213,7 +213,7 @@
 				return;
 			}
 
-			callPropPatch(client, options, model, headers);
+			callPropPatch(client, options, model, headers, model.attributes);
 		});
 	}
 
@@ -282,24 +282,57 @@
 	}
 
 	/**
-	 * DAV transport
+	 * 
 	 */
-	function davSync(method, model, options) {
-		var params = {type: methodMap[method] || method};
-		var isCollection = (model instanceof Backbone.Collection);
+	function getTypeForMethod(method, model) {
+		var type = methodMap[method];
+
+		if (!type) {
+			// return method directly
+			return method;
+		}
+
+		// TODO: use special attribute "resourceType" instead
+		var isWebdavCollection = model instanceof WebdavCollectionNode;
 
-		if (method === 'update') {
-			// if a model has an inner collection, it must define an
-			// attribute "hasInnerCollection" that evaluates to true
-			if (model.hasInnerCollection) {
-				// if the model itself is a Webdav collection, use MKCOL
-				params.type = 'MKCOL';
-			} else if (model.usePUT || (model.collection && model.collection.usePUT)) {
-				// use PUT instead of PROPPATCH
-				params.type = 'PUT';
+		// need to override default behavior and decide what to do
+		if (method === 'create') {
+			if (isWebdavCollection) {
+				if (!_.isUndefined(model.id)) {
+					// create new collection with known id
+					type = 'MKCOL';
+				} else {
+					// unsupported
+					throw 'Cannot create Webdav collection without id';
+				}
+			} else {
+				if (!_.isUndefined(model.id)) {
+					// need to create it first
+					type = 'PUT';
+				} else {
+					// creating without known id, will receive it after creation
+					type = 'POST';
+				}
+			}
+		} else if (method === 'update') {
+			// it exists, only update properties
+			type = 'PROPPATCH';
+			// force PUT usage ?
+			if (model.usePUT || (model.collection && model.collection.usePUT)) {
+				type = 'PUT';
 			}
 		}
 
+		return type;
+	}
+
+	/**
+	 * DAV transport
+	 */
+	function davSync(method, model, options) {
+		var params = {type: getTypeForMethod(method, model)};
+		var isCollection = (model instanceof Backbone.Collection);
+
 		// Ensure that we have a URL.
 		if (!options.url) {
 			params.url = _.result(model, 'url') || urlError();
@@ -315,7 +348,7 @@
 			params.processData = false;
 		}
 
-		if (params.type === 'PROPFIND' || params.type === 'PROPPATCH') {
+		if (params.type === 'PROPFIND' || params.type === 'PROPPATCH' || params.type === 'MKCOL') {
 			var davProperties = model.davProperties;
 			if (!davProperties && model.model) {
 				// use dav properties from model in case of collection
@@ -356,9 +389,98 @@
 		return xhr;
 	}
 
+
+	/**
+	 * Regular Webdav leaf node
+	 */
+	var WebdavNode = Backbone.Model.extend({
+		sync: davSync,
+
+		constructor: function() {
+			this.on('sync', this._onSync, this);
+			this._isNew = true;
+			Backbone.Model.prototype.constructor.apply(this, arguments);
+		},
+
+		_onSync: function() {
+			this._isNew = false;
+		},
+
+		isNew: function() {
+			// we can't rely on the id so use a dummy attribute
+			return !!this._isNew;
+		}
+	});
+
+	/**
+	 * Children collection for a Webdav collection node
+	 */
+	var WebdavChildrenCollection = Backbone.Collection.extend({
+		sync: davSync,
+
+		collectionNode: null,
+		model: WebdavNode,
+
+		constructor: function() {
+			this.on('sync', this._onSync, this);
+			Backbone.Collection.prototype.constructor.apply(this, arguments);
+		},
+
+		initialize: function(models, options) {
+			options = options || {};
+
+			this.collectionNode = options.collectionNode;
+
+			return Backbone.Collection.prototype.initialize.apply(this, arguments);
+		},
+
+		_onSync: function(model) {
+			if (model instanceof Backbone.Model) {
+				// since we saved, mark as non-new
+				if (!_.isUndefined(model._isNew)) {
+					model._isNew = false;
+				}
+			} else {
+				// since we fetched, mark models as non-new
+				model.each(function(model) {
+					if (!_.isUndefined(model._isNew)) {
+						model._isNew = false;
+					}
+				});
+			}
+		},
+
+		url: function() {
+			return this.collectionNode.url();
+		}
+	});
+
+	/**
+	 * Webdav collection which is a special node, represented by a backbone model
+	 * and a sub-collection for its children.
+	 */
+	var WebdavCollectionNode = WebdavNode.extend({
+		sync: davSync,
+
+		childrenCollectionClass: WebdavChildrenCollection,
+
+		_childrenCollection: null,
+
+		getChildrenCollection: function() {
+			if (!this._childrenCollection) {
+				this._childrenCollection = new this.childrenCollectionClass([], {collectionNode: this});
+			}
+			return this._childrenCollection;
+		}
+	});
+
 	// exports
 	Backbone.davCall = davCall;
 	Backbone.davSync = davSync;
 
+	Backbone.WebdavNode = WebdavNode;
+	Backbone.WebdavChildrenCollection = WebdavChildrenCollection;
+	Backbone.WebdavCollectionNode = WebdavCollectionNode;
+
 })(OC.Backbone);