Base class for state machines accessed via Flupdo. More...

Inheritance diagram for FlupdoMachine:

Public Member Functions
	invokeTransition (Reference $ref, $transition_name, $args, &$returns, $new_id_callback=null)
	Invoke state machine transition. More...

	createListing ($filters, $filtering_flags=0)
	Create generic listing on this machine type. More...

	createQueryBuilder ()
	Create query builder.

	getState ($id)
	Get current state of state machine.

	getProperties ($id, &$state_cache=null)
	Get all properties of state machine, including it's state.

	encodeProperties ($properties)
	Encode properties to database representation. More...

	decodeProperties ($properties)
	Decode properties from database representation. More...

	describeId ()
	Reflection: Describe ID (primary key). More...

Public Member Functions inherited from AbstractMachine
	__construct (AbstractBackend $backend, $type, $config, $context)
	Constructor. More...

	getState ($id)
	Get current state of state machine. More...

	getProperties ($id, &$state_cache=null)
	Get properties of state machine, including it's state. More...

	getView ($id, $view, &$properties_cache=null, &$view_cache=null, &$persistent_view_cache=null)
	Get properties in given view. More...

	isTransitionAllowed (Reference $ref, $transition_name, $state=null)
	Returns true if transition can be invoked right now. More...

	getAvailableTransitions (Reference $ref, $state=null)
	Get list of all available actions for state machine instance identified by $id.

	invokeTransition (Reference $ref, $transition_name, $args, &$returns, $new_id_callback=null)
	Invoke state machine transition. More...

	flushCache ()
	If machine properties are cached, flush all cached data.

	getMachineType ()
	Get type of this machine.

	getBackend ()
	Get backend which owns this machine.

	ref ($id)
	Helper to create Reference to this machine. More...

	nullRef ()
	Helper to create null Reference to this machine. More...

	hotRef ($properties)
	Create pre-heated reference using properties loaded from elsewhere. More...

	describeId ()
	Reflection: Describe ID (primary key). More...

	getUrlFormat ()
	Get URL format. More...

	getParentUrlFormat ()
	Get prent URL format. More...

	getPostActionUrlFormat ()
	Get URL for redirect-after-post. More...

	getMachineImplementationMTime ()
	Get mtime of machine implementation. More...

	getAllMachineStates ($having_section=null)
	Reflection: Get all states. More...

	describeMachineState ($state, $field=null)
	Reflection: Describe given machine state. More...

	describeAllMachineStates ($having_section=null)
	Reflection: Describe all states.

	getAllMachineActions ($having_section=null)
	Reflection: Get all actions (transitions) More...

	describeMachineAction ($action, $field=null)
	Reflection: Describe given machine action (transition) More...

	describeAllMachineActions ($having_section=null)
	Reflection: Describe all actions (transitions)

	getAllMachineProperties ($having_section=null)
	Reflection: Get all properties. More...

	describeMachineProperty ($property, $field=null)
	Reflection: Describe given property. More...

	describeAllMachineProperties ($having_section=null)
	Reflection: Describe all properties. More...

	getAllMachineViews ($having_section=null)
	Reflection: Get all views. More...

	describeMachineView ($view, $field=null)
	Reflection: Describe given view. More...

	describeAllMachineViews ($having_section=null)
	Reflection: Describe all views.

	getAllMachineReferences ($having_section=null)
	Reflection: Get all references. More...

	describeMachineReference ($reference, $field=null)
	Reflection: Describe given reference. More...

	describeAllMachineReferences ($having_section=null)
	Reflection: Describe all references.

	exportDot ()
	Export state machine to Graphviz source code.

Protected Member Functions
	initializeMachine ($config)
	Define state machine used by all instances of this type.

	scanTableColumns ()
	Scan table in database and populate properties and pk_columns arrays. More...

	checkAccessPolicy ($access_policy_name, Reference $ref)
	Returns true if user has required access_policy. More...

	queryAddAccessPolicyCondition ($access_policy_name, $query)
	Adds conditions to enforce read access_policy to query object. More...

	queryAddFrom ($query)
	Add FROM clause.

	queryGetThisTable ($query)
	Get table name with alias. More...

	queryAddStateSelect ($query)
	Add state column into select clause of the $query. More...

	queryAddPropertiesSelect ($query)
	Add properties to select. More...

	queryAddPrimaryKeyWhere ($query, $id, $clause= 'where')
	Add primary key condition to where clause. More...

Protected Member Functions inherited from AbstractMachine
	initializeMachine ($config)
	Define state machine used by all instances of this type.

	checkAccessPolicy ($access_policy, Reference $ref)
	Returns true if user has required access_policy to invoke a transition, which requires given access_policy.

	urlFormat ($id, $url_fmt, $properties_cache)
	Create URL using properties and given format.

	resolveMachineReference ($reference_name, $properties_cache)
	Helper function to resolve reference to another machine. More...

	onStateChanged (Reference $ref, $old_state, $transition_name, $new_state)
	Called when state is changed, when transition invocation is completed.

Protected Attributes
	$flupdo
	Database connection.

	$sphinx
	Sphinx indexer connection.

	$auth
	Authenticator (gets user id and role)

	$table
	Name of SQL table, where machine properties are stored.

	$table_alias = null
	Alias of the $table. More...

	$pk_columns = null
	List of columns which are used as primary key.

	$json_columns = array()
	List of columns which are serialized as JSON in database.

	$composed_properties = array()
	List of properties, which are composed of multiple columns.

	$user_id_table_column = null
	Column containing entity owner.

	$user_id_auth_method = null
	Auth object method name to retrieve current user ID. More...

	$load_state_with_properties = true
	True if state should not be loaded with properties.

	$filters = null
	Filters defined in configuration.

	$default_filters = null
	Default filters for listing.

	$additional_filters_data = null
	Additional filters data definition for listing.

	$state_select = null
	Select expression for selecting machine state.

Protected Attributes inherited from AbstractMachine
	$backend
	Backend, where all machines are stored.

	$context
	Global context passed from backend.

	$machine_type
	Identification within $backend.

	$url_fmt
	URL format string where machine is located, usualy only the path part, e.g. More...

	$parent_url_fmt
	URL format string where parent of this machine is located, usualy only the path part, e.g. More...

	$post_action_url_fmt
	URL format string for redirect-after-post. More...

	$states
	Descriptions of all known states – key is state id, value is * description. More...

	$state_groups
	State groups. More...

	$actions
	Description of all known actions – key is action name. More...

	$default_access_policy = null
	Default access policy. More...

	$read_access_policy = null
	Read access policy. More...

	$listing_access_policy = null
	Listing access policy. More...

	$access_policies
	Access policies. More...

	$properties
	Description of machine properties – key is property name. More...

	$views
	Description of machine views – key is view name. More...

	$references
	Description of machine references. More...

Additional Inherited Members
Public Attributes inherited from AbstractMachine
const	RETURNS_VALUE = null
	Return value of invoked transition is just some value.

const	RETURNS_NEW_ID = 'new_id'
	Return value of invoked transition is new ID of the state machine.

Detailed Description

Base class for state machines accessed via Flupdo.

Most of its protected member properties can be set via config options injected during initialization.

Member Function Documentation

scanTableColumns ( )

protected

Scan table in database and populate properties and pk_columns arrays.

Todo:: Do not include corrupted information, but at least something.

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checkAccessPolicy	(		$access_policy_name,
		Reference	$ref
	)

protected

Returns true if user has required access_policy.

/

Todo:: Caching ? Reference object has property cache. It would be nice to pass it here.

Todo:: Are we sure?

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queryAddAccessPolicyCondition	(	$access_policy_name,
		$query
	)

protected

Adds conditions to enforce read access_policy to query object.

Todo:: Remove hardcoded role name

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invokeTransition	(	Reference	$ref,
			$transition_name,
			$args,
		&	$returns,
			$new_id_callback = `null`
	)

Invoke state machine transition.

State machine is not instance of this class, but it is represented by record in database.

If transition creates a transaction and throws an exception, the transaction will be rolled back automatically before re-throwing the exception.

createListing	(	$filters,
		$filtering_flags = `0`
	)

Create generic listing on this machine type.

See also: FlupdoGenericListing

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queryGetThisTable ( $query )

protected

Get table name with alias.

Parameters

$query is used for quoting. It can be Flupdo or FlupdoBuilder

Returns: quoted SQL fragment containing table name, i.e. "`table` AS `this`".

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queryAddStateSelect ( $query )

protected

Add state column into select clause of the $query.

Must add only one column.

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queryAddPropertiesSelect ( $query )

protected

Add properties to select.

/

Todo:: Skip some properties in lisings.

Todo:: Refactor query building syntax to be used everywhere; see $filters in FlupdoGenericListing

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queryAddPrimaryKeyWhere	(	$query,
		$id,
		$clause = `'where'`
	)

protected

Add primary key condition to where clause.

Result should contain only one row now.

Returns $query.

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encodeProperties ( $properties )

Encode properties to database representation.

NULL values are preserved.

You should not need to call this, it is called automaticaly at the right time.

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decodeProperties ( $properties )

Decode properties from database representation.

NULL values are preserved.

You should not need to call this, it is called automaticaly at the right time.

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describeId ( )

Reflection: Describe ID (primary key).

Returns array of all parts of the primary key and its types (as strings). If primary key is not compound, something like array('id') is returned.

Order of the parts may be mandatory.

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Member Data Documentation

$table_alias = null

protected

Alias of the $table.

Default is to not use it.

$user_id_auth_method = null

protected

Auth object method name to retrieve current user ID.

/

Todo:: Review this.

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

Member Data Documentation