[entity] ensure the .related(entities=False) parameter is honored all the way down (closes #2755994)
As of today, such a call will always fill the relation cache by
calling .entities() on every single related rset entry.
As a consequence, the `limit` parameter handling also had to be fixed.
It was bogus in the following ways:
* not used in the related_rql, hence potentially huge database
requests, but also actually
* foolishly used in the .entities()-calling cache routine we now
bypass (this changeset ticket's main topic)
Now:
* we set a limit on the rql expression, and
* forbid caching if given a non-None limit (as we don't want to make
the cache handling code more complicated than it is already)
With this, entity.unrelated gets a better limit implementation (so the
code in related/unrelated is nice and symmetric)
Risk:
* _cw_relation_cache disappears completely, which is good, but this is
Python, so you never know ...
from cubicweb.devtools import DEFAULT_SOURCES
LOGIN, PASSWORD = DEFAULT_SOURCES['admin'].itervalues()
# Generated by the windmill services transformer
from windmill.authoring import WindmillTestClient
def test_creation():
client = WindmillTestClient(__name__)
client.open(url=u'/')
client.waits.forPageLoad(timeout=u'8000')
client.type(text=LOGIN, id=u'__login')
client.type(text=PASSWORD, id=u'__password')
client.click(value=u'log in')
client.waits.forPageLoad(timeout=u'20000')
# pre-condition
client.open(url=u'/cwuser/myuser')
client.asserts.assertJS(js=u'$(\'#contentmain h1\').text() == "this resource does not exist"')
client.open(url=u'/?rql=Any U WHERE U is CWUser, U login "myuser"')
client.asserts.assertJS(js=u'$(\'.searchMessage strong\').text() == "No result matching query"')
client.open(url=u'/manage')
client.open(url=u'/add/CWUser')
client.type(text=u'myuser', id=u'login-subject:A')
client.type(text=u'myuser', id=u'upassword-subject:A')
client.type(text=u'myuser', name=u'upassword-subject-confirm:A')
client.type(text=u'myuser', id=u'firstname-subject:A')
client.select(option=u'managers', id=u'from_in_group-subject:A')
client.click(id=u'cwinoutadd')
client.waits.forPageLoad(timeout=u'20000')
client.click(id=u'adduse_email:Alink')
client.waits.forPageLoad(timeout=u'20000')
client.type(text=u'myuser@logilab.fr', id=u'address-subject:B')
client.waits.forPageLoad(timeout=u'20000')
client.click(value=u'button_ok')
client.waits.forPageLoad(timeout=u'20000')
client.waits.sleep(milliseconds=u'5000')
client.asserts.assertJS(js=u'$(\'.message\').text() == "entity created"')
client.open(url=u'/?rql=Any U WHERE U is CWUser, U login "myuser"')
client.waits.forPageLoad(timeout=u'20000')
client.asserts.assertJS(js=u'$(\'#contentmain h1\').text() == "myuser"')
client.waits.forPageLoad(timeout=u'8000')
client.open(url=u'/cwuser/myuser?vid=sameetypelist')
client.waits.forPageLoad(timeout=u'8000')
client.asserts.assertJS(js=u'$(\'#contentmain a\').text() == "myuser"')
client.open(url=u'/cwuser/myuser?vid=text')
client.waits.forPageLoad(timeout=u'8000')
client.asserts.assertJS(js=u'$(\'#contentmain\').text() == "\\nmyuser"')
client.open(url=u'/cwuser/myuser?vid=deleteconf')
client.waits.forElement(timeout=u'8000', value=u'button_delete')
client.click(value=u'button_delete')
client.waits.forPageLoad(timeout=u'8000')
client.open(url=u'/cwuser/myuser')
client.asserts.assertJS(js=u'$(\'#contentmain h1\').text() == "this resource does not exist"')
client.open(url=u'/?rql=Any U WHERE U is CWUser, U login "myuser"')
client.asserts.assertJS(js=u'$(\'.searchMessage strong\').text() == "No result matching query"')