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DataGridField

Released under the GNU General Public License

A table input component for Plone. Uses Javascript to make entering tabular data more user friendly process - there are no round trip HTTP requests to the server when inserting or deleting rows.

Features

o Any number of columns set by a developer

o Any number of rows filled by a user

o Insert and deleting rows without submitting a form

o Many different column types

Requirements

o Plone 4 (for Plone 3, use the latest release in the 1.7 branch or 1.6 branch, for Plone 2.5, use the latest release in the 1.6 branch)

o A browser with Javascript support. There isn't yet graceful degradation for
browsers without Javascript.

Installation

This version of DataGridField is distributed as an egg at the Python Package index. Information about configuring either for a zope instance house a Plone site can be found by reading the Installing an Add-on Product tutorial and the "Installing a third party product" section of the Managing Project with zc.buildout tutorial.

Once you've succesfully done this, you can use the Add/Remove Products screen to install the DataGridField into your site. See below for information about experimenting with the demo types.

Quality

o Tested with Firefox 2.0, IE 6, IE 7

Usage examples

Simple example with three free text columns:

schema = BaseSchema + Schema((

DataGridField('DemoField',
        widget = DataGridWidget(),
        columns=('column1','column2','The third')
        ),
))

Complex example with different column types and user friendly labels:

# Plone imports
from Products.Archetypes.public import DisplayList
from Products.Archetypes.public import *

# Local imports
from Products.DataGridField import DataGridField, DataGridWidget
from Products.DataGridField.Column import Column
from Products.DataGridField.SelectColumn import SelectColumn

class DataGridDemoType(BaseContent):
    """A simple archetype

    """

    schema = BaseSchema + Schema((
        DataGridField('DemoField',
                searchable = True,
                columns=("column1", "column2", "select_sample"),
                widget = DataGridWidget(
                    columns={
                        'column1' : Column("Toholampi city rox"),
                        'column2' : Column("My friendly name"),
                        'select_sample' : SelectColumn("Friendly name", vocabulary="getSampleVocabulary")
                    },
                 ),
         ),

        ))

    def getSampleVocabulary(self):
        """
        """
        """ Get list of possible taggable features from ATVocabularyManager """
        return DisplayList(

            (("sample", "Sample value 1",),
            ("sample2", "Sample value 2",),))

For more examples, see unit test code.

Notes

o Since DataGridField 1.5, if you wish to retain old way of automatic row inserting.

Here is a bit logic behind all this - otherwise there will be an extra row added when you edit DGF and press save.

o You must set property auto_insert = True to DataGridWidget

o You must set property allow_empty_rows = False to DataGridField

Known bugs

o Sometimes on Firefox column sizes start changing after the user enters some
data. Not sure if this is a Firefox bug, though.

o Prefilled default values work only for text and select columns

o Radio button and link column postback is not handled properly. This needs
fixes very deep into Zope (ZPublisher). If the form validation fails, link column and radio button columns lost their values.

Demo

A demo type is included. It is disabled by default. This type is neither pretty nor very functional, but demonstrates how a data grid should be used. You can install this type into your site by running the "DataGridField (Example DGF content types)" from the Generic Setup tool within the ZMI.

References

"Custom Search product":http://plone.org/products/custom-search/ uses DataGridField for editing search form query fields.

"London School of Marketing":http://www.londonschoolofmarketing.com site uses DataGridField extensively

Contributors

People who have been making this true:

o Mikko Ohtamaa, "Red Innovation":http://www.redinnovation.com

o Danny Bloemendaal

o Radim Novotny

o Justin Ryan

o Alexander Limi

o PloneSolutions <[email protected]>

o Martin Aspeli <[email protected]>

o Paul Everitt, Zope Europe Association <[email protected]>

o Development was helped by Vincent Bonamy

o Maurits van Rees

o Andreas Jung

Original concept and prototype:

o Geir Baekholt, Plone Solutions <[email protected]>

o Paul Everitt, Zope Europe Association <[email protected]>

Sponsorship

Organizations paying up for the development

o "London School of Marketing":http://www.londonschoolofmarketing.com

o "United Nations Environment Programme":http://www.unep.org

Packages

No packages published

Languages

  • Python 88.4%
  • JavaScript 10.5%
  • Shell 1.1%