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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