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sql datasource: get() for a rel2type

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ArnAud 2016-01-07 17:28:10 +01:00
commit 97716da260
1 changed files with 29 additions and 6 deletions
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35
DataSource/MySQL/leapidatasource.py
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@ -53,12 +53,14 @@ class LeDataSourceSQL(DummyDatasource):
# it is a LeType or a LeClass, query on main table left join class table on lodel_id
elif target_cls.is_letype() or target_cls.is_leclass():
# find main table and main table datas
# find main table
main_table = utils.common_tables['object']
main_class = target_cls.leo_class()
# find class table
class_table = utils.object_table_name(main_class.__name__)
main_lodel_id = utils.column_prefix(main_table, main_class.uidname())
class_lodel_id = utils.column_prefix(class_table, main_class.uidname())
# do the join
joins = [left_join(class_table, {main_lodel_id:class_lodel_id})]
fields = [(main_table, target_cls.name2class('LeObject').fieldlist()), (class_table, main_class.fieldlist())]
@ -67,7 +69,27 @@ class LeDataSourceSQL(DummyDatasource):
fields = [(main_table, target_cls.name2class('LeRelation').fieldlist())]
elif target_cls.is_lerel2type():
main_table = utils.common_tables['relation']
fields = [(main_table, target_cls.name2class('LeRelation').fieldlist())]
class_table = utils.r2t_table_name(target_cls._superior_cls.__name__, target_cls._subordinate_cls.__name__)
relation_fieldname = target_cls.name2class('LeRelation').uidname()
main_relation_id = utils.column_prefix(main_table, relation_fieldname)
class_relation_id = utils.column_prefix(class_table, relation_fieldname)
lodel_id = target_cls.name2class('LeObject').uidname()
joins = [
left_join(class_table, {main_relation_id:class_relation_id}),
# join with the object table to retrieve class and type of superior and subordinate
left_join(utils.common_tables['object'] + ' as sup_obj', {'sup_obj.'+lodel_id:target_cls._superior_field_name}),
left_join(utils.common_tables['object'] + ' as sub_obj', {'sub_obj.'+lodel_id:target_cls._subordinate_field_name})
]
fields = [
(main_table, target_cls.name2class('LeRelation').fieldlist()),
(class_table, target_cls.fieldlist()),
('sup_obj', ['class_id']),
('sub_obj', ['type_id'])
]
field_list.extend(['class_id', 'type_id'])
else:
raise AttributeError("Target class '%s' in get() is not a Lodel Editorial Object !" % target_cls)
@ -94,6 +116,7 @@ class LeDataSourceSQL(DummyDatasource):
# Executing the query
cur = utils.query(self.connection, query)
results = all_to_dicts(cur)
#print(results)
# instanciate each row to editorial components
results = [target_cls.object_from_data(datas) for datas in results]
@ -196,8 +219,8 @@ class LeDataSourceSQL(DummyDatasource):
elif target_cls.is_lehierarch():
main_table = utils.common_tables['relation']
main_datas = {
utils.column_name(target_cls._lesup_name): datas[target_cls._lesup_name].lodel_id,
utils.column_name(target_cls._lesub_name): datas[target_cls._lesub_name].lodel_id
utils.column_name(target_cls._superior_field_name): datas[target_cls._superior_field_name].lodel_id,
utils.column_name(target_cls._subordinate_field_name): datas[target_cls._subordinate_field_name].lodel_id
}
main_fields = target_cls.name2class('LeRelation').fieldlist()
class_table = False
@ -205,8 +228,8 @@ class LeDataSourceSQL(DummyDatasource):
elif target_cls.is_lerel2type():
main_table = utils.common_tables['relation']
main_datas = {
utils.column_name(target_cls._lesup_name): datas[target_cls._lesup_name].lodel_id,
utils.column_name(target_cls._lesub_name): datas[target_cls._lesub_name].lodel_id
utils.column_name(target_cls._superior_field_name): datas[target_cls._superior_field_name].lodel_id,
utils.column_name(target_cls._subordinate_field_name): datas[target_cls._subordinate_field_name].lodel_id
}
main_fields = target_cls.name2class('LeRelation').fieldlist()