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Diffstat (limited to 'includes/js/dojo/data/api/Write.js')
| -rw-r--r-- | includes/js/dojo/data/api/Write.js | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/includes/js/dojo/data/api/Write.js b/includes/js/dojo/data/api/Write.js new file mode 100644 index 0000000..b02eb6e --- /dev/null +++ b/includes/js/dojo/data/api/Write.js @@ -0,0 +1,226 @@ +if(!dojo._hasResource["dojo.data.api.Write"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojo.data.api.Write"] = true; +dojo.provide("dojo.data.api.Write"); +dojo.require("dojo.data.api.Read"); + +dojo.declare("dojo.data.api.Write", dojo.data.api.Read, { + // summary: + // This is an abstract API that data provider implementations conform to. + // This file defines function signatures and intentionally leaves all the + // functionss unimplemented. + + getFeatures: function(){ + // summary: + // See dojo.data.api.Read.getFeatures() + return { + 'dojo.data.api.Read': true, + 'dojo.data.api.Write': true + }; + }, + + newItem: function(/* Object? */ keywordArgs, /*Object?*/ parentInfo){ + // summary: + // Returns a newly created item. Sets the attributes of the new + // item based on the *keywordArgs* provided. In general, the attribute + // names in the keywords become the attributes in the new item and as for + // the attribute values in keywordArgs, they become the values of the attributes + // in the new item. In addition, for stores that support hierarchical item + // creation, an optional second parameter is accepted that defines what item is the parent + // of the new item and what attribute of that item should the new item be assigned to. + // In general, this will assume that the attribute targetted is multi-valued and a new item + // is appended onto the list of values for that attribute. + // + // keywordArgs: + // A javascript object defining the initial content of the item as a set of JavaScript 'property name: value' pairs. + // parentInfo: + // An optional javascript object defining what item is the parent of this item (in a hierarchical store. Not all stores do hierarchical items), + // and what attribute of that parent to assign the new item to. If this is present, and the attribute specified + // is a multi-valued attribute, it will append this item into the array of values for that attribute. The structure + // of the object is as follows: + // { + // parent: someItem, + // attribute: "attribute-name-string" + // } + // + // exceptions: + // Throws an exception if *keywordArgs* is a string or a number or + // anything other than a simple anonymous object. + // Throws an exception if the item in parentInfo is not an item from the store + // or if the attribute isn't an attribute name string. + // example: + // | var kermit = store.newItem({name: "Kermit", color:[blue, green]}); + + var newItem; + throw new Error('Unimplemented API: dojo.data.api.Write.newItem'); + return newItem; // item + }, + + deleteItem: function(/* item */ item){ + // summary: + // Deletes an item from the store. + // + // item: + // The item to delete. + // + // exceptions: + // Throws an exception if the argument *item* is not an item + // (if store.isItem(item) returns false). + // example: + // | var success = store.deleteItem(kermit); + throw new Error('Unimplemented API: dojo.data.api.Write.deleteItem'); + return false; // boolean + }, + + setValue: function( /* item */ item, + /* string */ attribute, + /* almost anything */ value){ + // summary: + // Sets the value of an attribute on an item. + // Replaces any previous value or values. + // + // item: + // The item to modify. + // attribute: + // The attribute of the item to change represented as a string name. + // value: + // The value to assign to the item. + // + // exceptions: + // Throws an exception if *item* is not an item, or if *attribute* + // is neither an attribute object or a string. + // Throws an exception if *value* is undefined. + // example: + // | var success = store.set(kermit, "color", "green"); + throw new Error('Unimplemented API: dojo.data.api.Write.setValue'); + return false; // boolean + }, + + setValues: function(/* item */ item, + /* string */ attribute, + /* array */ values){ + // summary: + // Adds each value in the *values* array as a value of the given + // attribute on the given item. + // Replaces any previous value or values. + // Calling store.setValues(x, y, []) (with *values* as an empty array) has + // the same effect as calling store.unsetAttribute(x, y). + // + // item: + // The item to modify. + // attribute: + // The attribute of the item to change represented as a string name. + // values: + // An array of values to assign to the attribute.. + // + // exceptions: + // Throws an exception if *values* is not an array, if *item* is not an + // item, or if *attribute* is neither an attribute object or a string. + // example: + // | var success = store.setValues(kermit, "color", ["green", "aqua"]); + // | success = store.setValues(kermit, "color", []); + // | if (success) {assert(!store.hasAttribute(kermit, "color"));} + throw new Error('Unimplemented API: dojo.data.api.Write.setValues'); + return false; // boolean + }, + + unsetAttribute: function( /* item */ item, + /* string */ attribute){ + // summary: + // Deletes all the values of an attribute on an item. + // + // item: + // The item to modify. + // attribute: + // The attribute of the item to unset represented as a string. + // + // exceptions: + // Throws an exception if *item* is not an item, or if *attribute* + // is neither an attribute object or a string. + // example: + // | var success = store.unsetAttribute(kermit, "color"); + // | if (success) {assert(!store.hasAttribute(kermit, "color"));} + throw new Error('Unimplemented API: dojo.data.api.Write.clear'); + return false; // boolean + }, + + save: function(/* object */ keywordArgs){ + // summary: + // Saves to the server all the changes that have been made locally. + // The save operation may take some time and is generally performed + // in an asynchronous fashion. The outcome of the save action is + // is passed into the set of supported callbacks for the save. + // + // keywordArgs: + // { + // onComplete: function + // onError: function + // scope: object + // } + // + // The *onComplete* parameter. + // function(); + // + // If an onComplete callback function is provided, the callback function + // will be called just once, after the save has completed. No parameters + // are generally passed to the onComplete. + // + // The *onError* parameter. + // function(errorData); + // + // If an onError callback function is provided, the callback function + // will be called if there is any sort of error while attempting to + // execute the save. The onError function will be based one parameter, the + // error. + // + // The *scope* parameter. + // If a scope object is provided, all of the callback function ( + // onComplete, onError, etc) will be invoked in the context of the scope + // object. In the body of the callback function, the value of the "this" + // keyword will be the scope object. If no scope object is provided, + // the callback functions will be called in the context of dojo.global. + // For example, onComplete.call(scope) vs. + // onComplete.call(dojo.global) + // + // returns: + // Nothing. Since the saves are generally asynchronous, there is + // no need to return anything. All results are passed via callbacks. + // example: + // | store.save({onComplete: onSave}); + // | store.save({scope: fooObj, onComplete: onSave, onError: saveFailed}); + throw new Error('Unimplemented API: dojo.data.api.Write.save'); + }, + + revert: function(){ + // summary: + // Discards any unsaved changes. + // description: + // Discards any unsaved changes. + // + // example: + // | var success = store.revert(); + throw new Error('Unimplemented API: dojo.data.api.Write.revert'); + return false; // boolean + }, + + isDirty: function(/* item? */ item){ + // summary: + // Given an item, isDirty() returns true if the item has been modified + // since the last save(). If isDirty() is called with no *item* argument, + // then this function returns true if any item has been modified since + // the last save(). + // + // item: + // The item to check. + // + // exceptions: + // Throws an exception if isDirty() is passed an argument and the + // argument is not an item. + // example: + // | var trueOrFalse = store.isDirty(kermit); // true if kermit is dirty + // | var trueOrFalse = store.isDirty(); // true if any item is dirty + throw new Error('Unimplemented API: dojo.data.api.Write.isDirty'); + return false; // boolean + } +}); + +} |