DataGrid hyperlink in column

[RyanWilson]

Hi,

This is a great tutorial: http://www.turbogears.org/2.2/docs/main/DataGrid/index.html?highlight=datagrid

Can someone recommend a way to make to make the appearance 'Edit' button in the Action column conditional on another field?

My data table is totally different, so for example, I'd like the 'Edit' link to only show when phone number start with '323'

addressbook_grid = DataGrid(fields=[

    SortableColumn('Name', 'name'),

    SortableColumn('Surname', 'surname'),

    SortableColumn('Phone', 'phone'),

    ('Action', lambda obj:genshi.Markup('<a href="%s">Edit</a>' % url('/edit', params=dict(item_id=obj.uid))))

])

[Alessandro Molina]

The field callback actually receives the entire row (the obj parameter
you see in the lambda) so you can return your content making decisions
related to any field of the row.

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[RyanWilson]

Hi Alessandro,

You comment was vague but led me in the right direction.  Here's what I came up with:

def checkPhone(obj):

   if some regex on obj.phone:

        return genshi.Markup('<a href="%s">Edit</a>' % url('/edit', params=dict(id=obj.id)))

    else:

        return ''

addressbook_grid = DataGrid(fields=[

    SortableColumn('Name', 'name'),

    SortableColumn('Surname', 'surname'),

    SortableColumn('Phone', 'phone'),

    ('Action', lambda obj: checkPhone(obj))

])

Works great.  Thanks for the help.

Best,

Ryan

[RyanWilson]

How do I get that 'Edit' hyperlink to be formatted like a hyperlink?  Right now it's just plain text.

Thanks!

Ryan

[Moritz Schlarb]

You could also just write:

    ('Action', checkPhone)

instead of:

    ('Action', lambda obj: checkPhone(obj))

[RyanWilson]

Thanks.  Although I have to admit I don't understand why that works.  How does checkPhone get passed an argument?

[Moritz Schlarb]

Well, that's one of the awesome language features of Python! Functions are "first-level objects" just like classes or instances, so you can pass them around just like variables!

The important thing is that you don't call the function there, the calling gets done somewhere in DataGrid!