Products.csvreplicata 1.0.5

CSV import/export for Archetypes

Introduction
============

Allows to export and import AT objects contents and hierarchy.

Changelog
=========

1.0.5
----------------

* fix bug crc32 with large media files
* when you set a CSVHandledTypesSchematas default is automatically preselected for user convenience
Contribution from Jean-Philippe CAMGUILHEM

1.0.4
----------------

* Uninstall problem fix
IMPORTANT NOTE: when migrating from previous versions, you need to uninstall csvreplicata and then reinstall csvreplicata.
Contribution from Jean-Philippe CAMGUILHEM

1.0.3
----------------

* Custom handlers can be now implemented outside the product, and dynamically declared to the csvreplicata tool.
Contribution from Jean-Philippe CAMGUILHEM

1.0.2
----------------

* Initial release. Contributors: Eric BREHAULT / Christophe SAUTHIER

1.0
----------------

* Unreleased

CSV Replicator
==============

Overview
--------
A description of csv replicata here.


Interfaces
----------
import interfaces and classes ::

>>> from zope.interface.verify import verifyClass
>>> from zope.interface import implements
>>> from Products.csvreplicata.handlers.base import CSVdefault
>>> from Products.csvreplicata.handlers.file import CSVFile
>>> from Products.csvreplicata.interfaces import ICSVDefault, ICSVFile

Verify implementation ::

>>> verifyClass(ICSVDefault, CSVdefault)
True
>>> verifyClass(ICSVFile, CSVFile)
True

Default handlers
----------------
Verify the default handlers provided for Archetypes fields::

>>> self.portal.portal_csvreplicatatool.getHandlers()
{'Products.Archetypes.Field.DateTimeField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVDateTime object at ...,
'file': False},
'Products.Archetypes.Field.IntegerField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVInteger object at ...,
'file': False},
'default_handler':
{'handler_class': <Products.csvreplicata.handlers.base.CSVdefault ...,
'file': False},
'Products.Archetypes.Field.FileField':
{'handler_class':
<Products.csvreplicata.handlers.file.CSVFile object ...,
'file': True},
'Products.Archetypes.Field.BooleanField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVBoolean object at ...,
'file': False},
'Products.Archetypes.Field.TextField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVText object at ...,
'file': False},
'Products.Archetypes.Field.LinesField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVLines object at ...,
'file': False},
'Products.Archetypes.Field.ImageField':
{'handler_class':
<Products.csvreplicata.handlers.file.CSVFile object at ...,
'file': True},
'Products.Archetypes.Field.FloatField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVFloat object at ...,
'file': False},
'plone.app.blob.subtypes.file.ExtensionBlobField':
{'handler_class':
<Products.csvreplicata.handlers.file.CSVFile object at ...,
'file': True},
'Products.Archetypes.Field.StringField':
{'handler_class':
<Products.csvreplicata.handlers.base.CSVString object at ...,
'file': False},
'Products.Archetypes.Field.ReferenceField': {'handler_class':
<Products.csvreplicata.handlers.reference.CSVReference object at ...,
'file': False}}


What happened with csvreplicata during import/export if MyField is not in tool's
handlers. replicator.py apllies default_handler on it:

{'default_handler':
{'handler_class': base.CSVdefault(),'file': False}}


Provide a new handler
---------------------
A developper could write his proper widget for a new ATCT based type.
Of course he wants to provide it to the csvreplicata tool.

Then there are two cases:

- his new field can be provided by an existing handler like CSVInt by example.

- he wants to provide a new handler. ::

>>> class MyCSV(CSVdefault) :
... implements(ICSVDefault)
...
... def get(self, obj, field, context=None):
... pass
...
... def set(self, obj, field, value, context=None):
... pass

>>> verifyClass(ICSVDefault, MyCSV)
True

Ok now we could register a new handler to csvrplica tool and the way is the same in both cases.

We have to set a new handler to the tool with the appropriated method. ::

>>> self.portal.portal_csvreplicatatool.setHandler('Myproduct.Field.MyField',
... {'handler_class': MyCSV(), 'file': False})

>>> 'Myproduct.Field.MyField' \
... in self.portal.portal_csvreplicatatool.getHandlers()
True

of course setHandler() permits to edit an existing handler too ! ::

>>> class AnotherMyCSV(MyCSV) :
... pass

>>> self.portal.portal_csvreplicatatool.setHandler('Myproduct.Field.MyField',
... {'handler_class': AnotherMyCSV(), 'file': False})
>>> self.portal.portal_csvreplicatatool.getHandlers()['Myproduct.Field.MyField']
{'handler_class': <AnotherMyCSV object at ..., 'file': False}

now we can aso delete this handler ::

>>> self.portal.portal_csvreplicatatool.delHandler('Myproduct.Field.MyField')
>>> 'Myproduct.Field.MyField' in self.portal.portal_csvreplicatatool.getHandlers()
False


Export / Import
---------------

Export
______
here we export folders and documents ::

>>> import re
>>> self.setRoles(['Manager'])
>>> id=self.folder.invokeFactory('Document', id='doc1', title="Document 1")
>>> id=self.folder.invokeFactory('Document', id='doc2', title="Document 2")
>>> id=self.folder.invokeFactory('Document', id='doc3',
... title="Document 'super' 3")
>>> id=self.folder.invokeFactory('Document', id='doc4', title="Document 4")
>>> id=self.folder.invokeFactory('Folder', id='sub1', title="Sous dossier 1")
>>> id=self.folder.sub1.invokeFactory('Document', id='doc11',
... title="Document 1 du dossier 1")
>>> self.portal.portal_csvreplicatatool.getEncoding()
'UTF-8'
>>> self.portal.portal_csvreplicatatool.getDelimiter()
';'
>>> self.portal.portal_csvreplicatatool.getStringdelimiter()
'"'
>>> self.portal.portal_csvreplicatatool.replicabletypes = \
... {'Document':['default'], 'Folder':['default']}
>>> from Products.csvreplicata.interfaces import Icsvreplicata
>>> replicator = Icsvreplicata(self.folder)
>>> re.sub(';\d{14}',';YYYYMMDDhhmmss',
... replicator.csvexport(exportable_content_types=['Document', 'Folder']))
'"/plone/Members/test_user_1_";YYYYMMDDhhmmss\r\n"parent";"id";"type";"title";"description";"text"\r\n"Parent folder";"Identifier";"Content type";"Title";"label_description";"label_body_text"\r\n"";"doc1";"Document";"Document 1";"";""\r\n"";"doc2";"Document";"Document 2";"";""\r\n"";"doc3";"Document";"Document \'super\' 3";"";""\r\n"";"doc4";"Document";"Document 4";"";""\r\n"parent";"id";"type";"title";"description"\r\n"Parent folder";"Identifier";"Content type";"Title";"label_description"\r\n"";"sub1";"Folder";"Sous dossier 1";""\r\n'
>>> re.sub(';\d{14}',';YYYYMMDDhhmmss',
... replicator.csvexport(depth=2, exportable_content_types=['Document', 'Folder']))
'"/plone/Members/test_user_1_";YYYYMMDDhhmmss\r\n"parent";"id";"type";"title";"description";"text"\r\n"Parent folder";"Identifier";"Content type";"Title";"label_description";"label_body_text"\r\n"";"doc1";"Document";"Document 1";"";""\r\n"";"doc2";"Document";"Document 2";"";""\r\n"";"doc3";"Document";"Document \'super\' 3";"";""\r\n"";"doc4";"Document";"Document 4";"";""\r\n"parent";"id";"type";"title";"description"\r\n"Parent folder";"Identifier";"Content type";"Title";"label_description"\r\n"";"sub1";"Folder";"Sous dossier 1";""\r\n"parent";"id";"type";"title";"description";"text"\r\n"Parent folder";"Identifier";"Content type";"Title";"label_description";"label_body_text"\r\n"sub1";"doc11";"Document";"Document 1 du dossier 1";"";""\r\n'

import
______
see data in tests/test_file.csv ::

>>> import os
>>> from Globals import package_home
>>> from Products.csvreplicata.tests import GLOBALS
>>> path = os.path.join(package_home(GLOBALS), 'test_file.csv')
>>> fd = open(path, 'rb')
>>> replicator.csvimport(fd, datetimeformat='%d/%m/%Y')
(1, 1, DateTime('2050/10/20 12:12:00 GMT+1'), [])
>>> fd.close()
>>> self.folder.doc1.Title()
'Document 1 NEW'
>>> self.folder.doc5
<ATDocument at /plone/Members/test_user_1_/doc5>