collective.excelexport 1.4

======================
collective.excelexport
======================

What does this product
======================

This product provides tools to provide excel exports to Plone users,
under xls or csv format.

A framework, with default utilities to export the dexterity contents of a folder,
the results of a catalog search,
and the results of a eea faceted navigation search.
Many field types are managed (text, list, file, boolean, datagrid...).

Try @@collective.excelexport view on any folder containing dexterity elements.
Try @@collective.excelexport?excelexport.policy=excelexport.search&review_state=published on site root.

Try @@collective.excelexportcsv view on any folder for csv export.


How to extend it
================

Datasources
-----------

If you want to implement a new way to get content to export,
you can register a #datasource#,
wich is an adapter for collective.excelexport.interfaces.IDataSource interface.

This adapter can be a named one.

You will call this datasource calling the view @@collective.excelexport?excelexport.policy=datasourcename

See the IDataSource interface for more information



Exportables (excel sheet columns)
---------------------------------

If you want to define new columns for your excel export, you will write or override: ::

- Exportable factories, adapters for IExportableFactory interface that provides a list of Exportables
- Exportables, that define columns.

Example of an exportable factory: ::

from plone.dexterity.interfaces import IDexterityFTI
from collective.excelexport.exportables.base import BaseExportableFactory
from collective.excelexport.exportables.dexterityfields import get_ordered_fields
from collective.excelexport.exportables.dexterityfields import get_exportable
from collective.excelexport.exportables.dexterityfields import ParentField
from collective.excelexport.exportables.dexterityfields import GrandParentField

class PSTActionFieldsFactory(BaseExportableFactory):
adapts(IDexterityFTI, Interface, Interface)
portal_types = ('pstaction',)

def get_exportables(self):
portal_types = api.portal.get_tool('portal_types')
action_fti = portal_types['pstaction']
oo_fti = portal_types['operationalobjective']
os_fti = portal_types['strategicobjective']
fields = []
fields.extend([get_exportable(
field[1], self.context, self.request)
for field in get_ordered_fields(action_fti)])
fields.extend([get_exportable(
ParentField(field[1]), self.context, self.request)
for field in get_ordered_fields(oo_fti)])
fields.extend([get_exportable(
GrandParentField(field[1]), self.context, self.request)
for field in get_ordered_fields(os_fti)])
return fields


Dexterity exportables
---------------------

You have a complete set of exportables for dexterity fields.
Those are multi-adapters of field, context and request.

You can override them declaring a more specific adapter.

You can also declare a named adapter with the field name if you want a specific
rendering for one field.


Styles
------

If you don't feel good with default styles, you can register a specific one for: ::
- the export policy
- the context
- the layer

You just have to register a new IStyle adapter, in a zcml: ::

<adapter for="zope.interface.Interface
.interfaces.IThemeSpecific"
factory=".excelstyles.MyNeutralStyle"
provides="collective.excelexport.interfaces.IStyles"
/>

If you do not specify the name, the styles will be registered for all policies.

and in python: ::


class MyNeutralStyle(Styles):

content = xlwt.easyxf('font: height 200, name Arial, colour_index black, bold off; '
'align: wrap off, vert centre, horiz left;'
'borders: top thin, bottom thin, left thin, right thin;'
'pattern: pattern solid, back_colour white, fore_colour white'
)

headers = xlwt.easyxf('font: height 200, name Arial, colour_index black, bold on; '
'align: wrap off, vert centre, horiz left; '
'borders: top thin, bottom thin, left thin, right thin; '
'pattern: pattern solid, back_colour white, fore_colour white; '
)

Tests
=====

This add-on is tested using Travis CI. The current status of the add-on is :

.. image:: https://secure.travis-ci.org/collective/collective.excelexport.png
:target: http://travis-ci.org/collective/collective.excelexport

.. image:: https://coveralls.io/repos/collective/collective.excelexport/badge.png?branch=master
:target: https://coveralls.io/r/collective/collective.excelexport?branch=master

Contributors
============

- Thomas Desvenain, thomas.desvenain@gmail.com
Changelog
=========


1.4 (2017-05-31)
----------------

- Prevent removal of exportables with similar names when ordering them
[thomasdesvenain]
- Refactor: view exposes method that creates data buffer from sheet data.
[thomasdesvenain]
- Made correct release
[sgeulette]

1.3 (2016-11-28)
----------------

- Fix: check if value_type is empty for collection field render.
[bsuttor]

- Fix: try to get the value of a method if the field is a method and translate
DateTime results to a unicode, this fixes the export for objects with the IPublication
Behavior.
[pcdummy]

- Fix: be sure to not retrieve an attribute on an object by acquisition.
[vincentfretin]

- Feature: render_style can now return a Style object with content and headers
attribute to be able to customise the header style per exportable.
[vincentfretin]

- Feature: the passed obj to render_value is now
exportable.field.bind(obj).context to make it easier to get data from
parent or grandparent.
[vincentfretin]

- Feature: BaseFieldRenderer.render_header method returns now the translated field
title instead of the Message object.
[vincentfretin]

- Fix: Ignore reverse parameter when creating export url.
[cedricmessiant]

- Feature: Add sort exportables feature using exportables_order list.
Works with field and non-field exportables.
[cedricmessiant, ebrehault, thomasdevenain]

1.2 (2014-09-10)
----------------

- Feature: Added export under csv format.
[thomasdesvenain]

- API: Filter exportables by field name by default using excluded_exportables list.
[cedricmessiant]

- API: We can define a dexterity adapter for just one field using field name as
adapter name.
[thomasdesvenain]

- Fix: Faceted nav export link ignores results per page criterion.
[thomasdesvenain]

- Fix: Translate sheet title.
[thomasdesvenain]

- Fix: Improve text fields support.
[fngaha, thomasdesvenain]

1.1 (2014-06-19)
----------------

- Rename search policy excelexport.search to avoid conflict with 'search' view.
[thomasdesvenain]


1.0 (2014-06-02)
----------------

- Initial release.
[thomasdesvenain]