OSID - osid.blogging.BlogAdminSession Service Interface Definition

Interface	osid.blogging.BlogAdminSession
Implements	`osid.OsidSession`
Implemented By	`osid.blogging.batch.BlogBatchAdminSession`
Used By	`osid.blogging.BloggingManager`
Used By	`osid.blogging.BloggingProxyManager`
Description	This session creates, updates, and deletes `Blogs`. The data for create and update is provided by the consumer via the form object. `OsidForms` are requested for each create or update and may not be reused. Create and update operations differ in their usage. To create a `Blog`, a `BlogForm` is requested using `getBlogFormForCreate()` specifying the desired record `Types` or none if no record `Types` are needed. The returned `BlogForm` will indicate that it is to be used with a create operation and can be used to examine metdata or validate data prior to creation. Once the `BlogForm` is submiited to a create operation, it cannot be reused with another create operation unless the first operation was unsuccessful. Each `BlogForm` corresponds to an attempted transaction. For updates, `BlogForms` are requested to the `Blog` `Id` that is to be updated using `getBlogFormForUpdate()`. Similarly, the `BlogForm` has metadata about the data that can be updated and it can perform validation before submitting the update. The `BlogForm` can only be used once for a successful update and cannot be reused. The delete operations delete `Blogs`. This session includes an `Id` aliasing mechanism to assign an external `Id` to an internally assigned Id.
Method	canCreateBlogs
Description	Tests if this user can create `Blogs`. A return of true does not guarantee successful authorization. A return of false indicates that it is known creating a `Blog` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may not wish to offer create operations to unauthorized users.
Return	`boolean`		`false` if `Blog` creation is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canCreateBlogWithRecordTypes
Description	Tests if this user can create a single `Blog` using the desired record types. While `BloggingManager.getBlogRecordTypes()` can be used to examine which records are supported, this method tests which record(s) are required for creating a specific `Blog`. Providing an empty array tests if a `Blog` can be created with no records.
Parameters	`osid.type.Type[]`	`blogRecordTypes`	array of blog record types
Return	`boolean`		`true` if `Blog` creation using the specified `Types` is supported, `false` otherwise
Errors	NULL_ARGUMENT		`blogRecordTypes` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getBlogFormForCreate
Description	Gets the blog form for creating new blogs.
Parameters	`osid.type.Type[]`	`blogRecordTypes`	array of blog record types
Return	`osid.blogging.BlogForm`		the blog form
Errors	NULL_ARGUMENT		`blogRecordTypes` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		unable to get form for requested record types
Compliance	`mandatory`		This method must be implemented.
Method	createBlog
Description	Creates a new `Blog`.
Parameters	`osid.blogging.BlogForm`	`blogForm`	the forms for this `Blog`
Return	`osid.blogging.Blog`		the new `Blog`
Errors	ILLEGAL_STATE		`blogForm` already used in a create transaction
	INVALID_ARGUMENT		one or more of the form elements is invalid
	NULL_ARGUMENT		`blogForm` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`blogForm` did not originate from `getBlogFormForCreate()`
Compliance	`mandatory`		This method must be implemented.
Method	canUpdateBlogs
Description	Tests if this user can update `Blogs`. A return of true does not guarantee successful authorization. A return of false indicates that it is known updating a `Blog` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may not wish to offer update operations to unauthorized users.
Return	`boolean`		`false` if `Blog` modification is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	getBlogFormForUpdate
Description	Gets the blog form for updating an existing blog. A new blog form should be requested for each update transaction.
Parameters	`osid.id.Id`	`blogId`	the `Id` of the `Blog`
Return	`osid.blogging.BlogForm`		the blog form
Errors	NOT_FOUND		`blogId` is not found
	NULL_ARGUMENT		`blogId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	updateBlog
Description	Updates an existing blog.
Parameters	`osid.blogging.BlogForm`	`blogForm`	the form containing the elements to be updated
Errors	ILLEGAL_STATE		`blogForm` already used in an update transaction
	INVALID_ARGUMENT		the form contains an invalid value
	NULL_ARGUMENT		`blogId` or `blogForm` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`blogForm` did not originate from `getBlogFormForUpdate()`
Compliance	`mandatory`		This method must be implemented.
Method	canDeleteBlogs
Description	Tests if this user can delete `Blogs`. A return of true does not guarantee successful authorization. A return of false indicates that it is known deleting a `Blog` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may not wish to offer delete operations to unauthorized users.
Return	`boolean`		`false` if `Blog` deletion is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	deleteBlog
Description	Deletes a `Blog`.
Parameters	`osid.id.Id`	`blogId`	the `Id` of the `Blog` to remove
Errors	NOT_FOUND		`blogId` not found
	NULL_ARGUMENT		`blogId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canManageBlogAliases
Description	Tests if this user can manage `Id` aliases for `Blogs`. A return of true does not guarantee successful authorization. A return of false indicates that it is known changing an alias will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer alias operations to an unauthorized user.
Return	`boolean`		`false` if `Blog` aliasing is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	aliasBlog
Description	Adds an `Id` to a `Blog` for the purpose of creating compatibility. The primary `Id` of the `Blog` is determined by the provider. The new `Id` is an alias to the primary `Id`. If the alias is a pointer to another blog, it is reassigned to the given blog `Id`.
Parameters	`osid.id.Id`	`blogId`	the `Id` of a `Blog`
Parameters	`osid.id.Id`	`aliasId`	the alias `Id`
Errors	ALREADY_EXISTS		`aliasId` is in use as a primary `Id`
	NOT_FOUND		`blogId` not found
	NULL_ARGUMENT		`blogId` or `aliasId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.