[ckan-dev] Datastore setup for ckan 2.0

Stefán Þór Finnsson stefan.thor.finnsson at reykjavik.is
Tue Mar 5 15:18:14 UTC 2013


Hi

Thanks for this :) - I have change the ckanext/datastore/plugin.py file and now the system starts and the ckan page does work. 

But, I can find any good info about how to use the datastore compared to use the filestore, do I have to have both enabled? How do I put data to the datastore? Do I need the datastorer plugin or is there another way to use it?

Would be nice if someone could clear this out for me :)

-----Original Message-----
From: ckan-dev-bounces at lists.okfn.org [mailto:ckan-dev-bounces at lists.okfn.org] On Behalf Of Dominik Moritz
Sent: 28. febrúar 2013 18:18
To: CKAN Development Discussions
Subject: Re: [ckan-dev] Datastore setup for ckan 2.0

Hi,

looks like your postgres version does not have support for the concat function. I submitted a pull request [1] that replaces the concat function. You could either cherry-pick the commit, get the patch or wait for it to be in master. 

I'm sorry that we did'n catch that during our tests. 

Cheers,
Dominik

[1] https://github.com/okfn/ckan/pull/514

On 28 Feb 2013, at 17:53, Stefán Þór Finnsson <stefan.thor.finnsson at reykjavik.is> wrote:

> Hello :)
> 
> When I have added the datastore extension and done the config for it I get this error in my ckan log and the system does not work. Without the datastore it works fine.  I´m lost in what could be causing this error, anyone here with a quick answer for me :)
> 
> [Thu Feb 28 16:46:48 2013] [info] [client 82.112.70.95] mod_wsgi (pid=28703, process='', application='ckan-test|'): Loading WSGI script '/usr/local/ckan-test/pyenv/bin/ckan-test.py'.
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] mod_wsgi (pid=28703): Target WSGI script '/usr/local/ckan-test/pyenv/bin/ckan-test.py' cannot be loaded as Python module.
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] mod_wsgi (pid=28703): Exception occurred processing WSGI script '/usr/local/ckan-test/pyenv/bin/ckan-test.py'.
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] Traceback (most recent call last):
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/bin/ckan-test.py", line 11, in <module>
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     application = loadapp('config:%s' % config_filepath)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     return loadobj(APP, uri, name=name, **kw)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     return context.create()
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/paste/deploy/loadwsgi.py", line 710, in create
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     return self.object_type.invoke(self)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     return fix_call(context.object, context.global_conf, **context.local_conf)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/paste/deploy/util.py", line 56, in fix_call
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     val = callable(*args, **kw)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/src/ckan/ckan/config/middleware.py", line 54, in make_app
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     load_environment(global_conf, app_conf)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/src/ckan/ckan/config/environment.py", line 349, in load_environment
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     plugin.configure(config)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/src/ckan/ckanext/datastore/plugin.py", line 68, in configure
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     self._create_alias_table()
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/src/ckan/ckanext/datastore/plugin.py", line 206, in _create_alias_table
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     connection.execute(create_alias_table_sql)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1449, in execute
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     params)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1628, in _execute_text
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     statement, parameters
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1698, in _execute_context
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     context)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1691, in _execute_context
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     context)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]   File "/usr/local/ckan-test/pyenv/lib/python2.6/site-packages/sqlalchemy/engine/default.py", line 331, in do_execute
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]     cursor.execute(statement, parameters)
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] ProgrammingError: (ProgrammingError) function concat(name, name) does not exist
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] LINE 3:                 substr(md5(concat(dependee.relname, dependen...
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]                                    ^
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95] HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
> [Thu Feb 28 16:46:49 2013] [error] [client 82.112.70.95]  'CREATE OR REPLACE VIEW "_table_metadata" AS \\n            SELECT DISTINCT\\n                substr(md5(concat(dependee.relname, dependent.relname)), 0, 17) AS "_id",\\n                dependee.relname AS name,\\n                dependee.oid AS oid,\\n                dependent.relname AS alias_of\\n                -- dependent.oid AS oid\\n            FROM\\n                pg_class AS dependee\\n                LEFT OUTER JOIN pg_rewrite AS r ON r.ev_class = dependee.oid\\n                LEFT OUTER JOIN pg_depend AS d ON d.objid = r.oid\\n                LEFT OUTER JOIN pg_class AS dependent ON d.refobjid = dependent.oid\\n            WHERE\\n                (dependee.oid != dependent.oid OR dependent.oid IS NULL) AND\\n                (dependee.relname IN (SELECT tablename FROM pg_catalog.pg_tables)\\n                    OR dependee.relname IN (SELECT viewname FROM pg_catalog.pg_views)) AND\\n                dependee.relnamespace = (SELECT oid FROM pg_namespace WHERE nspname=\\'public\\')\\n            ORDER BY dependee.oid DESC;\\n        ' {}
> 
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