[GeoNode-users] modifying the layer list request

Thu Jun 18 06:09:19 PDT 2015

Hi Hugo,
the "easies" way would be to create a dedicated API for non permitted
resources that is used in a separate tab in the search pages dedicate to
resources that are in GeoNode but the user does not have the permission to
view.
The reasons behind that are:
- The current api, for performances purpose, do not loop over each result
in any way, they just take the data from the db, apply filters, then send
to the client. If you have to distinguish between permitted and not
permitted then you have to add back the post processing that will slow down
the API. Better have a dedicated API to this task.
- In the client side, there's Angular.js that renders the resources and
even if the angular tags look the same as the django ones {{tag}} they are
actually rendered by Angular. The _resourcebase_snippet works this way, so
you cannot use django template tags in there.

If you create a separate tab you can use the same logic both on the client
and on the server with just a different api endpoint at the price of not
having the results mixed in the same list.

If you decide to activate the API post processing (dehidratation cycle)
then try to keep it as light as possible otherwise the performances will
drop especially if you visualize many data all together.

2015-06-18 13:38 GMT+02:00 FERRARI Hugo <ferrari_hugo at yahoo.fr>:

> Hello everyone
> I've modified geonode behavior to make every user (logged or not) to view
> the complete list of the resources stored in geoserver and geonode store,
> and the ability to download the metadatas.
> Then I add some restrictions to allow only a few users to explore it:
>  what I mean by "exploring it" is displaying the geoexplorer frame for
> layers and giving auth to download it.
> the aim is to show users the whole catalog first, and e-mail the Point of
> Contact if a resource cannot be retrivied because of restriction.
>
> To improve the user experience I want to make a distinction on resource
> lists:
> when a resource is only "viewable" (ie displayed in the list but with no
> permision to download it),
>  it displays a "restricted access" message in the resource-base-snippet
> template, near the MD infos and thumbnail.
> So the user will be aware that he has no right to retrieve it directly
> without contact the PoC.
>
> To do that I modify JSON answer from the server when we ask him to get the
> list of available resources:
> the answer is built in create_response method from CommonModelApi in api
> module.
> We can see that a single resource retrieved from the db is sent back with
> some Metadata-fields.
> I just want to put a single boolean that will tell if user has the right
> to download it.
>
> I have  already written the short function to get this boolean, but as a
> template tag, used in the resources detail templates.
> So i 'll have to write an other function to use it the python module.
> It will produce duplicate code.
>
> Do you have some advice to do it in a better way ?
>
> Thanks,
> Hugo FERRARI
>
>
> Le 17/06/2015 23:00, geonode-users-request at lists.osgeo.org a écrit :
>
>> Send geonode-users mailing list submissions to
>>         geonode-users at lists.osgeo.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>>         http://lists.osgeo.org/cgi-bin/mailman/listinfo/geonode-users
>> or, via email, send a message with subject or body 'help' to
>>         geonode-users-request at lists.osgeo.org
>>
>> You can reach the person managing the list at
>>         geonode-users-owner at lists.osgeo.org
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of geonode-users digest..."
>>
>>
>> Today's Topics:
>>
>>     1. Cannot find /var/lib/geonode/ to get templates (William Francis)
>>     2. Re: Query on a medium sized postgis table layer takes forever
>>        on 2.4b25 (Paolo Corti)
>>     3. Implementing GeoNode for University (Florian Hoedt)
>>     4. Re: Query on a medium sized postgis table layer  takes forever
>>        on 2.4b25 (Francesco Bartoli)
>>     5. Bad Thumbnail png files (Miguel-Angel Manso-Callejo (UPM))
>>     6. Re: Bad Thumbnail png files (Simone Dalmasso)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 17 Jun 2015 19:24:51 +0630
>> From: William Francis <william.francis.james at gmail.com>
>> To: geonode-users at lists.osgeo.org
>> Subject: [GeoNode-users] Cannot find /var/lib/geonode/ to get
>>         templates
>> Message-ID:
>>         <
>> CAD0vh4b+a6wKWaLRO-XcFxJB5ccGmfHLpbpSAXtp5p3VAs2k6g at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hello,
>>
>> I am following the Customizing the geonode instructions and looking for
>> the
>> template files to copy to etc/geonode/templates
>>
>> e.g.
>>
>> /var/lib/geonode/src/GeoNodePy/geonode/templates/index.html
>>
>> However the directory  /var/lib/geonode/ doesn't exist.
>>
>>
>> Where can I find a copy of these templates?
>>
>> I am using v*ersion 2.4b25*  of geonode.
>>
>> Thank you.
>>
>> Will
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <
>> http://lists.osgeo.org/pipermail/geonode-users/attachments/20150617/e56cd76e/attachment-0001.html
>> >
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 17 Jun 2015 15:36:35 +0200
>> From: Paolo Corti <pcorti at gmail.com>
>> To: Rainer Lissewski <rainerlissewski at gmail.com>
>> Cc: "geonode-users at lists.osgeo.org" <geonode-users at lists.osgeo.org>
>> Subject: Re: [GeoNode-users] Query on a medium sized postgis table
>>         layer takes forever on 2.4b25
>> Message-ID:
>>         <
>> CAHXrU-Jo1L19VAFGZyS+i6WYMm2wtO693KTjBw6F18OqAzCkzA at mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> On Wed, Jun 17, 2015 at 2:30 PM, Rainer Lissewski
>> <rainerlissewski at gmail.com> wrote:
>>
>>> Hi, in the map view, I have tried to query a single attribute value
>>> (varchar) from a layer with about 5000 rows, and it has been running
>>> over an
>>> hour now, with no result. If someone can guide me where to look for the
>>> possible culprit (geoserver, django,...), I would gladly take any hints
>>>
>>>  Things I would check (in this order):
>> * response to the getfeatureinfo request using your browser debug toolbar
>> * geoserver log
>> * try the query in postgis and check it using EXPLAIN
>>
>> regards
>> p
>>
>>
>>
>>
> _______________________________________________
> geonode-users mailing list
> geonode-users at lists.osgeo.org
> http://lists.osgeo.org/cgi-bin/mailman/listinfo/geonode-users
>

-- 
Simone
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/geonode-users/attachments/20150618/04599e5f/attachment.html>