Ruby on Rails Thursday, January 31, 2019

> On Jan 31, 2019, at 4:57 PM, fugee ohu <fugee279@gmail.com> wrote:
>
>
>
> On Thursday, January 31, 2019 at 4:38:52 PM UTC-5, Walter Lee Davis wrote:
>
> > On Jan 31, 2019, at 3:50 PM, fugee ohu <fuge...@gmail.com> wrote:
> >
> > I had to remove a validation on the :name column because my PictureUploader which uses Carrierwave is mounted on that column
> > mount_uploader :name, PictureUploader
> > This causes validation
> > validates :name, presence: true
> > to cause rows in pictures to be invalid for blank :name even though the name, just a filename, is in the database for that column
>
> CarrierWave overloads the accessor for the attachment column to respond with the entire uploader model object. This is normal for CarrierWave.
>
> There are other attachment systems (I'm fond of Shrine) that use a different, less-surprising approach. In Shrine, you would have a column called picture_data and an attachment called picture. That way you can keep the difference between db column and virtual object separate.
>
> Walter
>
> >
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> If the uploader's mounted on that column do I still have to validate it ?
>

I haven't used Carrierwave in a number of years, but I think that it implements some validators of its own. You should investigate the documentation for CW.

Walter

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