[ckan-dev] Most Recent Dataset

[Stéphane Guidoin]

I guess you could pass myListOfPackages.results to the snippet. If it does
not work, you could start by trying a more simple case and build on its.
Here is a simple case where the package search is called directly in the
template without any snippet. From there you can build on and add snippets
and more this outside of the templates.

https://github.com/CityofSurrey/ckanext-surrey/blob/master/ckanext/surrey/templates/home/snippets/featured_popular.html


On Tue, May 6, 2014 at 8:45 AM, Fabrizio Fornari <ckanappoggio at gmail.com>wrote:

> Yes, it should be that one the problem but I can't figure out which is the
> right structure that I should use...
>
>
> On Mon, May 5, 2014 at 4:54 PM, Stéphane Guidoin <stephane at opennorth.ca>wrote:
>
>> I might be wrong but the query returns a structure that is more than just
>> the packages. The packages is a substructure named "results".
>>
>> snippets/package_list.html expects to receive only the results, not the
>> full result of the query. Passing the invalid structure might trigger the
>> error message you received.
>>
>> Stéphane
>>
>>
>>  On Mon, May 5, 2014 at 5:10 AM, Fabrizio Fornari <ckanappoggio at gmail.com
>> > wrote:
>>
>>>  basically, how can I pass argument to package_list.html? It seems that
>>> this way doesn't work. In snippets/package_list.html it says  that the
>>> format should be:
>>>
>>> {% snippet 'snippets/package_list.html', packages=c.datasets %}
>>>
>>> and that "packages is a list of packages to display."
>>>
>>> It seems to me that I should do something like:
>>> plugins.toolkit.render_snippet('snippets/package_list.html',
>>> packages=myListOfPackages)
>>>
>>> but it still gives me Error - <type 'exceptions.ValueError'>: invalid
>>> literal for int() with base 10: ''; what should I assign to
>>> myListOfPackages?
>>>
>>>
>>>
>>> On Sat, May 3, 2014 at 1:50 PM, Fabrizio Fornari <ckanappoggio at gmail.com
>>> > wrote:
>>>
>>>> Hi guys,
>>>>
>>>> I am running ckan 2.2 and I was trying to display in the home page of
>>>> ckan a list of the most recent datasets. I found an example of this at
>>>> here<https://github.com/anibalpacheco/ckanext-agesic/blob/9addb1fc964637997f18780a9a6f10db6814f0a2/ckanext/agesic/plugin.py> then
>>>> I tried to modify one of my extension to add this feature.
>>>> The problem is that I get the error: Error - <type
>>>> 'exceptions.ValueError'>: invalid literal for int() with base 10: '' and I
>>>> don't know how to solve it.
>>>>
>>>> I added the following lines to the file plugin.py of my extension:
>>>>
>>>> from ckan.model import Session, Package
>>>>
>>>> plugins.implements(plugins.ITemplateHelpers)
>>>>
>>>> def most_recent(self):
>>>>     """
>>>>     Most recent datasets, based on the metadata_modified attr.
>>>>     Return HTML that can be rendered in the templates calling
>>>>     {{ h.most_recent() }}
>>>>     """
>>>>     packages = []
>>>>     for package in Session.query(Package).filter(Package.state ==
>>>> 'active',
>>>>             Package.private == False).order_by(
>>>>             Package.metadata_modified.desc()).limit(4):
>>>>         packages.append(package.as_dict())
>>>>     data = {'packages': packages, 'list_class': "unstyled
>>>> dataset-list",'item_class': "dataset-item module-content", 'truncate': 120,
>>>> 'hide_resources': True}
>>>>     return
>>>> plugins.toolkit.render_snippet('snippets/package_list.html', data)
>>>>
>>>> def get_helpers(self):
>>>>     return {'most_recent': self.most_recent}
>>>>
>>>> Then in a html file I used {{ h.most_recent() }} to execute the
>>>> function. The problem seems to be with the row  "return
>>>> plugins.toolkit.render_snippet('snippets/package_list.html', data)" because
>>>> I printed the variable "data" and It displays the correct values but it
>>>> gives me Error - <type 'exceptions.ValueError'>: invalid literal for int()
>>>> with base 10: ''.
>>>>
>>>> Do you know what may cause this error?
>>>>
>>>>
>>>
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>>
>>
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-- 
Stéphane Guidoin
Director, Transportation
Open North
514-862-0084
http://opennorth.ca
Twitter: @opennorth / @hoedic
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