T3CON12 Québec City FILE ABSTRACTION LAYER 1
The File Abstraction Layer in TYPO3 6.0
Jun 30, 2015
The Slides of th Talk about the FileAbstraction Layer at the T3CON12 in Québec City, Canada.
Gives an Overview about Concepts, Changes for Editors as well as a short introduction in usage for Development.
Gives an Overview about Concepts, Changes for Editors as well as a short introduction in usage for Development.
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Transcript
1
T3CON12Québec City
FILE ABSTRACTION LAYER
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Introduction into File Abstraction current State in TYPO3 goals and concepts
The File Abstraction Layer in TYPO3 6.0 influences on editors architecture FAL vs. DAM
Developers Information: Customize FAL custom Drivers usage in Extensions extending FAL
AGENDA
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3
Germany, near Frankfurt
Studied Computer Science
Freelancer for TYPO3 Development
TYPO3 since 2006 Core Team Member Release Manager 4.7
STEFFEN RITTER
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Current State,Goals,History,Concepts
INTRODUCTION
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plain PHP functions (fopen, is_dir, …)operating system restriction: Windows vs. Unixfi les in TYPO3 site root
Usage copied to uploads/thumbnails copied to typo3temp/
obtains disk space replacing fi les diffi cult meta-data distributed
INTRODUCTION: CURRENT STATE
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omit superfluous copies reference fi les
central meta-data management
no direct fi le-system access
external fi le-systems
„DAM“ with core support
INTRODUCTION: GOALS
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planned since years
several attempts / refactorings
huge task DAM not core
finally: BLE-project with planned integration in 4.7
released with 6.0alpha1 improvements and actions welcome
INTRODUCTION: HISTORY AND FUTURE
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Resource – element in fi le-system
File – real fi le in fi le-system
Folder– structuring unit of fi le-system Folder in local file-system, tag or album in Flickr
ProcessedFile – variants References File
INTRODUCTION: CONCEPTS
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Storage – unix: mount Mount-point definition Aggregation: Driver, Name, Path, „user-mount “
Driver– low-level interface php file-system calls WebDAV: PUT/GET/POST …
INTRODUCTION: CONCEPTS
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Changes for Editors
FILE ABSTRACTIONIN TYPO3 6.0
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CHANGES FOR EDITORS: FILE MODULE
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CHANGES FOR EDITOR: IMAGES
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CHANGES FOR EDITOR: HCI CHANGES
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CHANGES FOR EDITORS: UPLOADS
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CHANGES FOR EDITORS: FILE-META DATA
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WITH MEDIA INSTALLED:
„bridge to DAM“
CHANGES FOR EDITORS: FILE-META DATA
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ArchitectureFILE ABSTRACTION
IN TYPO3 6.0
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Interface to code against
Objects in memory
In fi le-system
ARCHITECTURE: CLASS HIERARCHY
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File: database (sys_fi le)Folder: transientStorage: database (sys_storage)FileReference: database (sys_fi le_reference)ProcessedFile: database (sys_fi le_processedfi le)
References in Database: [UID]Folder: [???]
ARCHITECTURE: PERSISTENCE
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4 diff erent Identifi er: Identifier Combined Identifier uid Sha1 (internal only)
Identifi er user_up load /Admin / tes t .h tml
String, unique within Storage useless without storage
Combined Identifi er 1:user_up load /Admin / tes t .h tml
Extends identifier with Storage UID [StorageUid]:[Identifier]
uid Indexed elements Database relations
ARCHITECTURE: IDENTIFY A RESOURCE
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WAAAHH?
ARCHITECTURE: IDENTIFY A RESOURCE
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Which Identifier to use?
Combined-Identifier: TypoScript, Hand over file to FAL manual references
Uid internally (extensions, php, database) Whenever possible (better performance)
ARCHITECTURE: IDENTIFY A RESOURCE
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Gimmick / Backwards compatibilty: Legacy Files
„Virtual Storage“ uid: 0 local-driver Root at TYPO3_site not indexed!
Access all files: 0:uploads/pics/bla.jpg 0:typo3conf/ext/myEXT/ext_icon.gif
ARCHITECTURE: IDENTIFY A RESOURCE
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Top-Level in fi le-tree
Drivers can ship custom config WebDAV: Username, Password, …
Offl ine/Online detection for Remote data sources
ARCHITECTURE: STORAGE AND MOUNTPOINTS
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„FileMounts“: new definition Label
Storage
All Folders in Storage selectable
User-FileMounts „fi lter“ Storage All storages in filetree Only accessible folder shown
ARCHITECTURE: STORAGE AND MOUNTPOINTS
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New collection Interfaces since TYPO3 4.7Central storage/grouping of records/dataSimilar JCF / STL Container
FAL extends Collection: Folder-Collection: All files within a folder Static-Collection: pre selected files
Extensions/Upload-CE uses „collection“ Central exchange of files
ARCHITECTURE: COLLECTIONS
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FAL VS. DAM
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FAL is NOT compatible to DAM FAL won‘t replace DAM
FAL concentrates on fi le meta-data DAM concentrates on fi le-content meta-data
DAM 2.0 Media Extension Static collections - FAL Folder collections - FAL Tag/Filter collection - t.b.d
Migration possible (to a certain extend)
New projects with DAM??? Start with 6.0alpha1 and FAL!!!
FILE ABSTRACTION LAYER AND D.A.M.
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Use, Extend and customize the File Abstraction Layer
DEVELOPERS INFORMATION
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Possibilities: WebDAV, Flickr, Amazon S3, FTP, SharePoint…
Driver Interface + Registry1. implement Interface2. Register at Registry3. configure within Storage
DEVELOPERS INFORMATION: CUSTOM DRIVERS
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New TypoScript Object „FILES“
DEVELOPERS INFORMATION: TYPOSCRIPT
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collections selected in TCE-FormPHP Code has to work with them
DEVELOPERS INFORMATION:WORKING WITH COLLECTIONS
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Currently: Check for „is fi le“
New prefix „fi le:“ file:1:user_upload/index.html file:735
DEVELOPERS INFORMATION:RETRIEVING FILES FROM TYPOLINK
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