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[ADD] fields.binary: support 'bin_size_XXX' context flags to selectively enable returning size/contents of a binary field - pending API change after 6.0 

bzr revid: odo@openerp.com-20101104170523-z1n4jop5e46t3wtu
This commit is contained in:
Olivier Dony 2010-11-04 18:05:23 +01:00
parent 3b368f4034
commit e1f5158d7d
2 changed files with 39 additions and 18 deletions
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10
bin/osv/fields.py
View File

@ -254,7 +254,15 @@ class binary(_column):
if v['id'] == i:
val = v[name]
break
if context.get('bin_size', False) and val:
# If client is requesting only the size of the field, we return it instead
# of the content. Presumably a separate request will be done to read the actual
# content if it's needed at some point.
# TODO: after 6.0 we should consider returning a dict with size and content instead of
# having an implicit convention for the value
import pdb
pdb.set_trace()
if val and context.get('bin_size_%s' % name, context.get('bin_size')):
res[i] = tools.human_size(long(val))
else:
res[i] = val

47
bin/osv/orm.py
View File

@ -1012,6 +1012,27 @@ class orm_template(object):
return (done, 0, 0, 0)
def read(self, cr, user, ids, fields=None, context=None, load='_classic_read'):
"""
Read records with given ids with the given fields
:param cr: database cursor
:param user: current user id
:param ids: id or list of the ids of the records to read
:param fields: optional list of field names to return (default: all fields would be returned)
:type fields: list (example ['field_name_1', ...])
:param context: optional context dictionary - it may contains keys for specifying certain options
like ``context_lang``, ``context_tz`` to alter the results of the call.
A special ``bin_size`` boolean flag may also be passed in the context to request the
value of all fields.binary columns to be returned as the size of the binary instead of its
contents. This can also be selectively overriden by passing a field-specific flag
in the form ``bin_size_XXX: True/False`` where ``XXX`` is the name of the field.
Note: The ``bin_size_XXX`` form is new in OpenERP v6.0.
:return: list of dictionaries((dictionary per record asked)) with requested field values
:rtype: [{‘name_of_the_field’: value, ...}, ...]
:raise AccessError: * if user has no read rights on the requested object
* if user tries to bypass access rules for read on the requested object
"""
raise NotImplementedError(_('The read method is not implemented on this object !'))
def get_invalid_fields(self, cr, uid):
@ -1049,8 +1070,15 @@ class orm_template(object):
:param fields_list: list of fields to get the default values for (example ['field1', 'field2',])
:type fields_list: list
:param context: usual context dictionary - it may contains keys in the form ``default_XXX``,
where XXX is a field name to set or override a default value.
:param context: optional context dictionary - it may contains keys for specifying certain options
like ``context_lang`` (language) or ``context_tz`` (timezone) to alter the results of the call.
It may contain keys in the form ``default_XXX`` (where XXX is a field name), to set
or override a default value for a field.
A special ``bin_size`` boolean flag may also be passed in the context to request the
value of all fields.binary columns to be returned as the size of the binary instead of its
contents. This can also be selectively overriden by passing a field-specific flag
in the form ``bin_size_XXX: True/False`` where ``XXX`` is the name of the field.
Note: The ``bin_size_XXX`` form is new in OpenERP v6.0.
:return: dictionary of the default values (set on the object model class, through user preferences, or in the context)
"""
# trigger view init hook
@ -2941,21 +2969,6 @@ class orm(orm_template):
return super(orm, self).fields_get(cr, user, fields, context, write_access)
def read(self, cr, user, ids, fields=None, context=None, load='_classic_read'):
"""
Read records with given ids with the given fields
:param cr: database cursor
:param user: current user id
:param ids: id or list of the ids of the records to read
:param fields: optional list of field names to return (default: all fields would be returned)
:type fields: list (example ['field_name_1', ...])
:param context: (optional) context arguments, like lang, time zone
:return: list of dictionaries((dictionary per record asked)) with requested field values
:rtype: [{‘name_of_the_field’: value, ...}, ...]
:raise AccessError: * if user has no read rights on the requested object
* if user tries to bypass access rules for read on the requested object
"""
if not context:
context = {}
self.pool.get('ir.model.access').check(cr, user, self._name, 'read', context=context)