SilverStripe\Assets\Folder

Represents a logical folder, which may be used to organise assets stored in the configured backend.

Unlike dataobjects, there is not necessarily a physical filesystem entite which
represents a Folder, and it may be purely logical. However, a physical folder may exist
if the backend creates one.
Additionally, folders do not have URLs (relative or absolute), nor do they have paths.
When a folder is moved or renamed, records within it will automatically be copied to the updated
location.
Deleting a folder will remove all child records, but not any physical files.
See documentation for more details about the
relationship between the database and filesystem in the SilverStripe file APIs.

Synopsis

class Folder extends File {

• // Inherited constants from File
• const EDIT_ALL = 'FILE_EDIT_ALL';
• // members
• private static string $singular_name = "Folder";
• private static string $plural_name = "Folders";
• private static string $table_name = 'Folder';
• // methods
• public void exists()
• public static Folder|null find_or_make()
• public void onBeforeDelete()
• public string getIcon()
• public $this setTitle()
• public string getTitle()
• public null getSize()
• public DataList myChildren()
• public bool hasChildren()
• public bool hasChildFolders()
• public DataList ChildFolders()
• public int numChildFolders()
• public string getTreeTitle()
• public void getFilename()
• public null|string getURL()
• public string getAbsoluteURL()
• public void onAfterWrite()
• public void onAfterDelete()
• public void updateFilesystem()
• public void onAfterSkippedWrite()
• public void updateChildFilesystem()
• public void StripThumbnail()
• public void validate()
• // Inherited methods from File
• public static void get_shortcodes()
• public bool exists()
• public static File find()
• public string Link()
• public void RelativeLink()
• public string AbsoluteLink()
• public string getTreeTitle()
• public bool canView()
• public boolean canEdit()
• public boolean canCreate()
• public boolean canDelete()
• public FieldList getCMSFields()
• public string getStatusTitle()
• public static string get_app_category()
• public static array get_category_extensions()
• public string appCategory()
• public void onAfterUpload()
• protected void onBeforeWrite()
• protected void onAfterDelete()
• public void onAfterRevertToLive()
• protected void updateDependantObjects()
• public bool updateFilesystem()
• public true|null collateDescendants()
• protected AssetNameGenerator getNameGenerator()
• public string getAbsoluteURL()
• public string getURL()
• public string getSourceURL()
• public string generateFilename()
• public string renameFile()
• public void copyFile()
• public $this setFilename()
• public string getExtension()
• public static string get_file_extension()
• public static string get_icon_for_extension()
• public string getFileType()
• public static string get_file_type()
• public string|false getSize()
• public static string format_size()
• public static float ini2bytes()
• public int getAbsoluteSize()
• public ValidationResult validate()
• public static String get_class_for_file_extension()
• public static void set_class_for_file_extension()
• public void getMetaData()
• public void getMimeType()
• public void getStream()
• public void getString()
• public void setFromLocalFile()
• public void setFromStream()
• public void setFromString()
• public void getIsImage()
• public void getFilename()
• public void getHash()
• public void getVariant()
• public string forTemplate()
• public string getTag()
• public void requireDefaultRecords()
• public void BackLinkTracking()
• public int BackLinkTrackingCount()
• public static string join_paths()
• public void deleteFile()
• public void getVisibility()
• public void publishFile()
• public void protectFile()
• public void grantFile()
• public void revokeFile()
• public void canViewFile()
• public void CMSEditLink()
• public void PreviewLink()
• public PermissionChecker getPermissionChecker()
• public void providePermissions()
• public static array getAllowedExtensions()
• protected string filterFilename()
• public void flushCache()
• public static void reset()
• // Inherited methods from ImageManipulation
• public $this setAllowGeneration()
• public bool getAllowGeneration()
• public DBFile existingOnly()
• public abstract string getString()
• public abstract resource getStream()
• public abstract string getURL()
• public abstract string getAbsoluteURL()
• public abstract array|null getMetaData()
• public abstract string getMimeType()
• public abstract int getAbsoluteSize()
• public abstract bool exists()
• public abstract string getFilename()
• public abstract string getHash()
• public abstract string getVariant()
• public abstract bool getIsImage()
• public AssetContainer Pad()
• public AssetContainer Resampled()
• public void updateURL()
• public AssetContainer ResizedImage()
• public AssetContainer Fit()
• public AssetContainer FitMax()
• public AssetContainer ScaleWidth()
• public AssetContainer ScaleMaxWidth()
• public AssetContainer ScaleHeight()
• public AssetContainer ScaleMaxHeight()
• public AssetContainer CropWidth()
• public AssetContainer CropHeight()
• public AssetContainer FillMax()
• public AssetContainer Fill()
• public DBFile|DBHTMLText CMSThumbnail()
• public AssetContainer|DBHTMLText StripThumbnail()
• public AssetContainer|DBHTMLText PreviewThumbnail()
• public AssetContainer Thumbnail()
• public AssetContainer|DBHTMLText ThumbnailIcon()
• public DBHTMLText IconTag()
• public string ThumbnailURL()
• public string getIcon()
• public Image_Backend getImageBackend()
• public int getWidth()
• public int getHeight()
• public int getOrientation()
• public boolean isSize()
• public boolean isWidth()
• public boolean isHeight()
• public DBFile manipulateImage()
• public DBFile manipulate()
• public string variantName()
• protected int castDimension()
}


Hierarchy

Extends

• SilverStripe\Assets\File

Tasks

Line	Task
1229	- Implement PolymorphicManyManyList to replace this

Constants

Name	Value
EDIT_ALL	'FILE_EDIT_ALL'

Members

private

• $plural_name
• $singular_name
• $table_name

protected

• $allowGeneration — SilverStripe\Assets\bool
  If image resizes are allowed

Methods

public

• ChildFolders() — Get the children of this folder that are also folders.
• StripThumbnail()
• exists()
• find_or_make() — Find the given folder or create it as a database record
• getAbsoluteURL() — Folders do not have public URLs
• getFilename()
• getIcon() — Return the relative URL of an icon for this file type
• getSize() — A folder doesn't have a (meaningful) file size.
• getTitle() — Get the folder title
• getTreeTitle()
• getURL() — Folders do not have public URLs
• hasChildFolders() — Returns true if this folder has children
• hasChildren() — Returns true if this folder has children
• myChildren() — Returns all children of this folder
• numChildFolders() — Get the number of children of this folder that are also folders.
• onAfterDelete()
• onAfterSkippedWrite() — If a write is skipped due to no changes, ensure that nested records still get asked to update
• onAfterWrite()
• onBeforeDelete()
• setTitle() — Override setting the Title of Folders to that Name and Title are always in sync.
• updateChildFilesystem() — Update filesystem of all children
• updateFilesystem()
• validate()

Inherited from SilverStripe\Assets\File

protected

• filterFilename() — Pass name through standand FileNameFilter
• getNameGenerator() — Get an asset renamer for the given filename.
• onAfterDelete() — Update link tracking on delete
• onBeforeWrite() — Make sure the file has a name
• updateDependantObjects() — Update objects linking to this file

public

• AbsoluteLink() — Just an alias function to keep a consistent API with SiteTree
• BackLinkTracking() — Get the back-link tracking objects that link to this file via HTML fields
• BackLinkTrackingCount() — Count of backlinks Note: Doesn't filter broken records
• CMSEditLink()
• Link() — Just an alias function to keep a consistent API with SiteTree
• PreviewLink()
• RelativeLink()
• appCategory() — Returns a category based on the file extension.
• canCreate() — Check if a file can be created
• canDelete() — Check if this file can be deleted
• canEdit() — Check if this file can be modified
• canView()
• canViewFile()
• collateDescendants() — Collate selected descendants of this page.
• copyFile()
• deleteFile()
• exists() — A file only exists if the file_exists() and is in the DB as a record
• find() — Find a File object by the given filename.
• flushCache()
• forTemplate() — Return a html5 tag of the appropriate for this file (normally img or a)
• format_size() — Formats a file size (eg: (int)42 becomes string '42 bytes')
• generateFilename() — Get expected value of Filename tuple value. Will be used to trigger a file move on draft stage.
• getAbsoluteSize() — Return file size in bytes.
• getAbsoluteURL() — Gets the URL of this file
• getAllowedExtensions() — Get the list of globally allowed file extensions for file uploads.
• getCMSFields() — List of basic content editable file fields.
• getExtension() — Returns the file extension
• getFileType() — Return the type of file for the given extension on the current file name.
• getFilename()
• getHash()
• getIsImage()
• getMetaData()
• getMimeType()
• getPermissionChecker()
• getSize() — Returns the size of the file type in an appropriate format.
• getSourceURL() — Get URL, but without resampling.
• getStatusTitle() — Get title for current file status
• getStream()
• getString()
• getTag() — Return a html5 tag of the appropriate for this file (normally img or a)
• getTreeTitle()
• getURL() — Gets the URL of this file
• getVariant()
• getVisibility()
• get_app_category() — Returns a category based on the file extension.
• get_category_extensions() — For a category or list of categories, get the list of file extensions
• get_class_for_file_extension() — Maps a {@link File} subclass to a specific extension.
• get_file_extension() — Gets the extension of a filepath or filename, by stripping away everything before the last "dot".
• get_file_type() — Get descriptive type of file based on filename
• get_icon_for_extension() — Given an extension, determine the icon that should be used
• get_shortcodes()
• grantFile()
• ini2bytes() — Convert a php.ini value (eg: 512M) to bytes
• join_paths() — Joins one or more segments together to build a Filename identifier.
• onAfterRevertToLive()
• onAfterUpload() — Should be called after the file was uploaded
• protectFile()
• providePermissions() — Return a map of permission codes to add to the dropdown shown in the Security section of the CMS.
• publishFile()
• renameFile() — Rename this file.
• requireDefaultRecords()
• reset()
• revokeFile()
• setFilename() — Update the ParentID and Name for the given filename.
• setFromLocalFile()
• setFromStream()
• setFromString()
• set_class_for_file_extension() — See {@link get_class_for_file_extension()}.
• updateFilesystem() — This will check if the parent record and/or name do not match the name on the underlying DBFile record, and if so, copy this file to the new location, and update the record to point to this new file.
• validate()

Inherited from SilverStripe\Assets\ImageManipulation

protected

• castDimension() — Validate a width or size is valid and casts it to integer

public

• CMSThumbnail() — Default CMS thumbnail
• CropHeight() — Crop image on Y axis if it exceeds specified height. Retain width.
• CropWidth() — Crop image on X axis if it exceeds specified width. Retain height.
• Fill() — Resize and crop image to fill specified dimensions.
• FillMax() — Crop this image to the aspect ratio defined by the specified width and height, then scale down the image to those dimensions if it exceeds them.
• Fit() — Scale image proportionally to fit within the specified bounds
• FitMax() — Proportionally scale down this image if it is wider or taller than the specified dimensions.
• IconTag() — Get HTML for img containing the icon for this file
• Pad() — Fit image to specified dimensions and fill leftover space with a solid colour (default white). Use in templates with $Pad.
• PreviewThumbnail() — Get preview for this file
• Resampled() — Forces the image to be resampled, if possible
• ResizedImage() — Generate a resized copy of this image with the given width & height.
• ScaleHeight() — Scale image proportionally by height. Use in templates with $ScaleHeight.
• ScaleMaxHeight() — Proportionally scale down this image if it is taller than the specified height.
• ScaleMaxWidth() — Proportionally scale down this image if it is wider than the specified width.
• ScaleWidth() — Scale image proportionally by width. Use in templates with $ScaleWidth.
• StripThumbnail() — Generates a thumbnail for use in the gridfield view
• Thumbnail() — Default thumbnail generation for Images
• ThumbnailIcon() — Thubnail generation for all file types.
• ThumbnailURL() — Get URL to thumbnail of the given size.
• existingOnly() — Return clone of self which promises to only return existing thumbnails
• exists() — Determine if this container has a valid value
• getAbsoluteSize() — Return file size in bytes.
• getAbsoluteURL()
• getAllowGeneration() — Check if resizes are allowed
• getFilename() — Get value of filename
• getHash() — Get value of hash
• getHeight() — Get the height of this image.
• getIcon() — Return the relative URL of an icon for the file type, based on the {@link appCategory()} value.
• getImageBackend() — Get Image_Backend instance for this image
• getIsImage() — Determine if a valid non-empty image exists behind this asset
• getMetaData() — Get metadata for this file
• getMimeType() — Get mime type
• getOrientation() — Get the orientation of this image.
• getStream()
• getString()
• getURL()
• getVariant() — Get value of variant
• getWidth() — Get the width of this image.
• isHeight() — Determine if this image is of the specified width
• isSize() — Determine if this image is of the specified size
• isWidth() — Determine if this image is of the specified width
• manipulate() — Generate a new DBFile instance using the given callback if it hasn't been created yet, or return the existing one if it has.
• manipulateImage() — Wrapper for manipulate that passes in and stores Image_Backend objects instead of tuples
• setAllowGeneration() — Set whether image resizes are allowed
• updateURL() — Update the url to point to a resampled version if forcing
• variantName() — Name a variant based on a format with arbitrary parameters