Before this commit, @mode=primary would be sorta-ignored[0] if the current
view and its parent had the same model: the current view would *still* get
applied (as an extension) when asking OpenERP for its parent. This commit
makes mode=primary views behave regularly, they are *never* applied when
asking for their parent, only when asking for them or their children.
This allows "forking" views, and using extended views in some contexts without
breaking or duplicating the original view
[0] there was actually a problem when asking for the current view directly,
first its parent would be resolved by applying it, then it would be
applied to resolve itself, the view would thus get applied twice (oops)
Not used yet, only defined its relation to inherit_id:
not inherit_id + primary -> ok
not inherit_id + extension -> error
inherit_id + primary -> ok
inherit_id + extension -> ok
Server-side, view extension is done via xpath. This includes "template" views
full of HTML.
HTML elements often have a bunch of classes, sometimes even semantic
(!). XPath is generally great, but specifically lousy at dealing with
space-separated values: in standard XPath 1.0 to know if an element has a
class 'foo' the predicate is:
contains(concat(' ', normalize-space(@class), ' '), ' foo ')
and this has to be fully duplicated if there's a second class involved.
Things are slightly better with EXSLT/XPath 2.0 and tokenize, but still not
great:
tokenize(@class, '\s+') = 'foo'
and the equality check is very weird when unaware of XPath's evaluation rules.
``hasclass`` makes this much simpler to deal with: to get any ``foo`` node
with the class ``bar`` is as simple as:
//foo[hasclass('bar')
and it can take multiple class, as with e.g. jquery it will return elements
with all specified classes.
Beware though, the predicate function will be called once for each element to
check, since it's implemented in pure python and not profiled elements should
be filtered as much as possible before this point.
This was problematic on some views where two views with the same priority could be chosen depending on the server, postgresql version and the age of the captain
The value_unpickled given by xml data is usualy already evaluated but when it is given by the web client, a str is recieved by the method (as the field is a text field). In the later case, we need to evaluate the field before storing to be correctly evaluated as a default value.
bzr revid: mat@openerp.com-20140509130412-ki211x7qdccdnv5w
Olivier Dony
Christophe Simonis
Christophe Simonis
Martin Trigaux
Xavier Morel
Fabien Meghazi
kevin wang
tpa-odoo
Simon Lejeune
Christophe Simonis
Thibault Delavallée
Richard Mathot (OpenERP)
Launchpad Translations on behalf of openerp
Martin Trigaux
Fabien Pinckaers
Jitendra Prajapati