transmogrify.filesystem 1.0 Beta 6

Transmogrifier source for reading files from the filesystem
transmogrify.filesystem provides a Transmogrifier data source for reading files, images and directories from the filesystem. The output format is geared towards constructing Plone File, Image or Folder content. It is also possible to add arbitrary metadata (such as titles and descriptions) to the content items, by providing these in a separate CSV file.

Installation

First, add transmogrify.filesystem as a dependency of your product in your setup.py, and include its configuration in configure.zcml:

< include package="transmogrify.filesystem" / >


Usage

You can use transmogrify.filesystem in a pipeline like this:

[transmogrifier]
pipeline =
 data
 constructor
 schema
 savepoint

[data]
blueprint = transmogrify.filesystem
directory = my.package:data/root
ignored =
 re:.*\.svn.*


[constructor]
blueprint = collective.transmogrifier.sections.constructor

[schema]
blueprint = plone.app.transmogrifier.atschemaupdater

[savepoint]
blueprint = collective.transmogrifier.sections.savepoint
every = 50


This will scan the directory data inside the Python package my.package for files and directories, but will ignore any .svn directories and their contents. The source will yield items suitable for passing to the standard Transmogrifier content constructor and the schema updated from plone.app.transmogrifier.

Adding metadata

Transmogrifier will re-create the directory structure and files in Plone, but there is no information here to set titles or descriptions for created items.

You can, however, add additional metadata to files by using a CSV file. For example, say you had a CSV file like this:

path,title,description
/foo,Foo,A file
/foo/bar,Bar,Another file


The headers in this file indicate the field names for additional data. One of the columns must have a heading of path, and should contain file paths relative to the Transmogrifier context (normally the Plone site root), with a leading slash, as shown here. These paths will be matched against the files loaded from the data directory.

Subsequent columns are passed along as-is, so in this case, the title and description fields will be set as given in the CSV file.

To use this file, use the metadata key, e.g.:

[data]
blueprint = transmogrify.filesystem
directory = my.package:data/root
metadata = my.package:data/metadata.csv
ignored =
 re:.*\.svn.*


Available options

The available options are:

directory (required)
 The directory from which files are read. Subdirectories should reflect the eventual path of images and files uploaded. May be given as an absolute path, a path relative to the current working directory, or a package reference (e.g. my.package:foo/bar).
metadata
 A CSV file containing metadata. See above. May be given as an absolute path, a path relative to the current working directory, or a package reference (e.g. my.package:foo/bar).
require-metadata
 If set to True, only files with matching metadata are included. Directories are always included regardless. Defaults to False.
delimiter
 A character that delimits data in your Metadata CSV file.
strict
 If this is set to True, transmogrify.filesystem will break if it finds a row of data in Metadata CSV which field-count does not match field-count of the first row in the CSV file.
folder-type
 The portal type for folders to create (if required). Defaults to 'Folder'.
file-type
 The portal type for files. Defaults to 'File'.
file-field
 The name of the field to use for file (non-image) content. Defaults to file, which is the name for a standard ATFile.
image-type
 The portal type for images. Defaults to 'Image'.
image-field
 The name of the field to use for image content. Defaults to image, which is the name for a standard ATImage.
wrap-data
 By default, file data will be wrapped into an OFS.File or OFS.Image object. Set this option to False to get the raw data, as a string.
default-mime-type
 The default file type for content where the mimetype cannot be guessed. Defaults to application/octet-stream.
ignored
 A list of paths and/or regular expressions (prefixed with re: or regexp: to skip).

Output

The yielded dictionaries will have the following keys:

_type
 Portal type name. Will be one of folder-type (Folder), file-type (File) or image-type (Image).
_path
 The ZODB path for the new item. This is based on the folder structure from which files were read.

For images and files, two additional keys are included:

_mimetype
 The mimetype, as guessed from the file extension. The default, if no adequate guess can be made, is application/octet-stream.
Image field name (as set with file-field or image-field)
 The contents of the file.

In addition, any keys from matching rows in the metadata CSV file, if specified, will be included. The values will all be strings.

last updated on:
August 4th, 2012, 23:14 GMT
price:
FREE!
homepage:
pypi.python.org
license type:
GPL (GNU General Public License) 
developed by:
Martin Aspeli
category:
ROOT \ Internet \ Plone Extensions
transmogrify.filesystem
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What's New in This Release:
  • Fix brown bag release. [zupo]
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