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Implements _LeObject.link_remove() and LeType.unlink_subordinate()

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Yann 2015-11-05 11:04:45 +01:00
commit a5996dc419
2 changed files with 28 additions and 0 deletions
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21
leobject/leobject.py
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@ -144,6 +144,9 @@ class _LeObject(object):
# @throw LeObjectError if the link is not valid # @throw LeObjectError if the link is not valid
# @throw AttributeError if an non existing relation attribute is given as argument # @throw AttributeError if an non existing relation attribute is given as argument
# @throw ValueError if the relation attrivute value check fails # @throw ValueError if the relation attrivute value check fails
#
# @todo Code factorisation on relation check
# @todo unit tests
@classmethod @classmethod
def link_together(cls, lesup, lesub, **rel_attr): def link_together(cls, lesup, lesub, **rel_attr):
if lesub.__class__ not in lesup._linked_types.keys(): if lesub.__class__ not in lesup._linked_types.keys():
@ -162,6 +165,9 @@ class _LeObject(object):
# @param leo_is_superior bool : if True leo is the superior in the relation # @param leo_is_superior bool : if True leo is the superior in the relation
# @return A dict with LeType child class instance as key and dict {rel_attr_name:rel_attr_value, ...} # @return A dict with LeType child class instance as key and dict {rel_attr_name:rel_attr_value, ...}
# @throw LeObjectError if the relation is not possible # @throw LeObjectError if the relation is not possible
#
# @todo Code factorisation on relation check
# @todo unit tests
@classmethod @classmethod
def linked_together(cls, leo, letype, leo_is_superior = True): def linked_together(cls, leo, letype, leo_is_superior = True):
valid_link = letype in leo._linked_types.keys() if leo_is_superior else leo.__class__ in letype._linked_types.keys() valid_link = letype in leo._linked_types.keys() if leo_is_superior else leo.__class__ in letype._linked_types.keys()
@ -174,6 +180,21 @@ class _LeObject(object):
return cls._datasource.get_related(leo, letype, leo_is_superior) return cls._datasource.get_related(leo, letype, leo_is_superior)
## @brief Remove a link (and attributes) between two LeObject
# @param lesup LeType : LeType child instance
# @param lesub LeType : LeType child instance
# @return True if a link has been deleted
# @throw LeObjectError if the relation between the two LeObject is not possible
#
# @todo Code factorisation on relation check
# @todo unit tests
@classmethod
def link_remove(cls, lesup, lesub):
if lesub.__class__ not in lesup._linked_types.keys():
raise LeObjectError("Relation errorr : %s cannot be linked with %s"%(lesup.__class__.__name__, lesub.__class__.__name__))
return cls._datasource.del_related(lesup, lesub)
## @brief Prepare a field_list ## @brief Prepare a field_list
# @param field_list list : List of string representing fields # @param field_list list : List of string representing fields
# @param letype LeType : LeType child class # @param letype LeType : LeType child class

7
leobject/letype.py
View file

@ -138,6 +138,13 @@ class LeType(object):
def linked_subordinates(self, letype): def linked_subordinates(self, letype):
return leobject.lefactory.LeFactory.leobj_from_name('LeObject').linked_together(self, letype, True) return leobject.lefactory.LeFactory.leobj_from_name('LeObject').linked_together(self, letype, True)
## @brief Remove a link with a subordinate
# @param leo LeType : LeType child instance
# @return True if a link has been deleted
# @throw LeObjectError if the relation between the two LeObject is not possible
def unlink_subordinate(self, leo):
return leobject.lefactory.LeFactory.leobj_from_name('LeObject').linked_together(self, leo)
## @brief Remove a link bewteen this object and another ## @brief Remove a link bewteen this object and another
# @param leo LeType : LeType child class instance # @param leo LeType : LeType child class instance
# @todo unit tests # @todo unit tests