I tried virtual field but can not use it as request args to select the
records
They do not appear in the list table fields.
I got a ticket using the computed field example
Field('article_link', lambda r: r.article_title.replace(' ', '-'))
or also
Field('article_link', lambda r: r['article_title'].replace(' ', '-'))
On Wednesday, April 18, 2018 at 1:28:51 PM UTC, Anthony wrote:
>
> You probably want a computed field
> <http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#Computed-fields>
> .
>
> Field('article_link', lambda r: r.article_title.replace(' ', '-'))
>
> Alternatively, to avoid storing redundant data in the database, you can
> instead use a virtual field
> <http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#New-style-virtual-fields>
> (that
> will add a little overhead at runtime, as the links will be created from
> the titles when you select rows from the database).
>
> Anthony
>
> On Wednesday, April 18, 2018 at 6:58:47 AM UTC-4, dirman wrote:
>>
>> How can i automatically repeat a field text into another field with
>> hyphens to replace spaces before record insertion
>>
>> I want to insert 'High Temperature In City' in the article_title and to
>> be repeated in the article_link with hyphens
>>
>> db.define_table('articles',
>> Field('article_title', 'string'),
>> Field('article_link', 'string'))
>>
>>
>> Example:
>> http://domain.com/articles/high-temperature-in-city/
>>
>
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