[ckan-dev] ckan form - help

Thu Feb 6 11:52:16 UTC 2014

How would I override the resource?  I was trying to follow example_idatasetform but I can't seem to get it from there.

From: nigel.babu at okfn.org
Date: Thu, 6 Feb 2014 15:00:02 +0530
To: ckan-dev at lists.okfn.org
Subject: Re: [ckan-dev] ckan form - help

Hi Kristi,

You'd have to override the resource form to add your new field.

Nigel Babu

Developer  |  @nigelbabu

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On 6 February 2014 01:59, kristi powell <y2kristi at hotmail.com> wrote:

Thanks David, that does imply that I cannot add a form field?
So the dataset form in step 2 adds a resource and there is where I am trying to add an additional field.

From: David.Fawcett at state.mn.us
To: ckan-dev at lists.okfn.org
Date: Wed, 5 Feb 2014 20:21:01 +0000

Subject: Re: [ckan-dev] ckan form - help

Yes, you can add ‘extras’ to resources: 

http://stackoverflow.com/questions/15709586/attach-extras-to-ckan-resources

Note that the API syntax is different for resources than for packages/datasets. 

David.

From: ckan-dev [mailto:ckan-dev-bounces at lists.okfn.org]
On Behalf Of kristi powell

Sent: Wednesday, February 05, 2014 2:00 PM

To: CKAN Development Discussions

Subject: Re: [ckan-dev] ckan form - help

Ok, can you add a field to a resource?

Date: Wed, 5 Feb 2014 14:03:29 -0500

From: stephane at opennorth.ca

To: ckan-dev at lists.okfn.org

Subject: Re: [ckan-dev] ckan form - help

Hi Kristi,

I am not sure of all the intrinsicalities of CKAN, but it does not change change de tables. If I remember well, there is a table of "extras" where CKAN stores the field name and values of
 the additional fields. A new field can also be defined as a tag (in which case it goes with a defined vocabulary, it's a bit more complex).

In the example, you see this happen here:

   def _modify_package_schema(self, schema):

        # Add our custom country_code metadata field to the schema.

        schema.update({

                'country_code': [tk.get_validator('ignore_missing'),

                    tk.get_converter('convert_to_tags')('country_codes')]

                })

        # Add our custom_test metadata field to the schema, this one will use

        # convert_to_extras instead of convert_to_tags.

        schema.update({

                'custom_text': [tk.get_validator('ignore_missing'),

                    tk.get_converter('convert_to_extras')]

                })

        return schema

Basically, it adds extras (or tags) from the DB to the data schema that is made available.

Steph

On Wed, Feb 5, 2014 at 1:34 PM, kristi powell <y2kristi at hotmail.com> wrote:

Thanks Steph.

Is there a new field added to one of the ckan database tables or is a new table created?

Kristi

Date: Wed, 5 Feb 2014 12:30:02 -0500

From: stephane at opennorth.ca

To: ckan-dev at lists.okfn.org

Subject: Re: [ckan-dev] ckan form - help

Hi Kristi,

Did you had a look to the idatasetform example :  https://github.com/ckan/ckan/tree/master/ckanext/example_idatasetform

You have there a perfect example to add fields.

Steph

On Wed, Feb 5, 2014 at 11:31 AM, kristi powell <y2kristi at hotmail.com> wrote:

I've registered...

I'm new to using ckan.  The new dataset form is pretty comprehensive, but I need 3 additional fields to be added.  I have read that it is not recommended to change the schema of the db tables,
 so i'm trying to create an extension.

For the fields that I needed added I can't seem to change the html file.  Am I expected to override the function in my python script and construct an entire new html form?  If I create a
 new html form am I responsible for writing the code to update the original ckan schema or just the fields that i'm adding.

Subject: ckan form - help

From: ckan-dev-owner at lists.okfn.org

To: y2kristi at hotmail.com

Date: Wed, 5 Feb 2014 16:10:12 +0000

Only list members can post to the ckan-dev mailing list. Please join
the list to post.

--Forwarded Message Attachment--

From: y2kristi at hotmail.com

To: ckan-dev at lists.okfn.org

Subject: ckan form - help

Date: Wed, 5 Feb 2014 11:10:09 -0500

Hello,

I'm new to using ckan.  The new dataset form is pretty comprehensive, but I need 3 additional fields to be added.  I have read that it is not recommended to change the schema of the db tables,
 so i'm trying to create an extension.

For the fields that I needed added I can't seem to change the html file.  Am I expected to override the function in my python script and construct an entire new html form?  If I create a
 new html form am I responsible for writing the code to update the original ckan schema or just the fields that i'm adding.

Any help would be greatly appreciated.

Thanks,

Kristi

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