def apply_default_behavior(entity_attr: 'CdmEntityAttributeDefinition', fk_attr_name: Optional[str],
attr_group_name: Optional[str]):
'''Applies the replaceAsForeignKey and addAttributeGroup operations to the entity attribute provided.'''
ctx = entity_attr.ctx
projection = CdmProjection(ctx)
# Link for the Source property documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/convert-logical-entities-resolved-entities#source
projection.source = entity_attr.entity
# Link for the RunSequentially property documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/convert-logical-entities-resolved-entities#run-sequentially
projection.run_sequentially = True
entity_attr.entity = CdmEntityReference(ctx, projection, False)
if fk_attr_name:
foreign_key_attr = CdmTypeAttributeDefinition(ctx, fk_attr_name)
foreign_key_attr.data_type = CdmDataTypeReference(ctx, 'entityId', True)
# Link for the ReplaceAsForeignKey operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/replaceasforeignkey
replace_as_fk_operation = CdmOperationReplaceAsForeignKey(ctx)
replace_as_fk_operation.condition = 'referenceOnly'
replace_as_fk_operation.reference = 'addressLine'
replace_as_fk_operation.replace_with = foreign_key_attr
projection.operations.append(replace_as_fk_operation)
if attr_group_name:
# Link for the AddAttributeGroup operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/addattributegroup
add_attr_group_operation = CdmOperationAddAttributeGroup(ctx)
add_attr_group_operation.condition = 'structured'
add_attr_group_operation.attribute_group_name = attr_group_name
projection.operations.append(add_attr_group_operation)
def apply_array_expansion(entity_attr: 'CdmEntityAttributeDefinition',
start_ordinal: int, end_ordinal: int,
rename_format: str, count_att_name: Optional[str]):
'''Applies the arrayExpansion operation to the entity attribute provided.
It also takes care of applying a renameattributes operation and optionally applying a addCountAttribute operation.'''
ctx = entity_attr.ctx
projection = CdmProjection(ctx)
projection.source = entity_attr.entity
projection.run_sequentially = True
# Link for the Condition property documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/convert-logical-entities-resolved-entities#condition
projection.condition = '!normalized'
entity_attr.entity = CdmEntityReference(ctx, projection, False)
# Link for the ArrayExpansion operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/arrayexpansion
arr_expansion_operation = CdmOperationArrayExpansion(ctx)
arr_expansion_operation.start_ordinal = start_ordinal
arr_expansion_operation.end_ordinal = end_ordinal
projection.operations.append(arr_expansion_operation)
# Link for the Renameattributes operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/renameattributes
# Doing an ArrayExpansion without a RenameAttributes afterwards will result in the expanded attributes being merged in the final resolved entity.
# This is because ArrayExpansion does not rename the attributes it expands by default. The expanded attributes end up with the same name and gets merged.
# Example: We expand A to A[1], A[2], A[3], but A[1], A[2], A[3] are still named "A".
rename_attrs_operation = CdmOperationRenameAttributes(ctx)
rename_attrs_operation.rename_format = rename_format
projection.operations.append(rename_attrs_operation)
if count_att_name:
count_attribute = CdmTypeAttributeDefinition(ctx, count_att_name)
count_attribute.data_type = CdmDataTypeReference(ctx, 'integer', True)
# Link for the AddCountAttribute operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/addcountattribute
# It is recommended, but not mandated, to be used with the ArrayExpansion operation to provide an ArrayExpansion a count attribute that
# represents the total number of expanded elements. AddCountAttribute can also be used by itself.
add_count_attr_operation = CdmOperationAddCountAttribute(ctx)
add_count_attr_operation.count_attribute = count_attribute
projection.operations.append(add_count_attr_operation)
def apply_array_expansion(entity_attr: 'CdmEntityAttributeDefinition',
start_ordinal: int, end_ordinal: int,
rename_format: str, count_att_name: Optional[str]):
'''Applies the arrayExpansion operation to the entity attribute provided.
It also takes care of applying a renameattributes operation and optionally applying a addCountAttribute operation.'''
ctx = entity_attr.ctx
projection = CdmProjection(ctx)
projection.source = entity_attr.entity
projection.run_sequentially = True
# Link for the Condition property documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/convert-logical-entities-resolved-entities#condition
projection.condition = '!normalized'
entity_attr.entity = CdmEntityReference(ctx, projection, False)
# Link for the ArrayExpansion operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/arrayexpansion
arr_expansion_operation = CdmOperationArrayExpansion(ctx)
arr_expansion_operation.start_ordinal = start_ordinal
arr_expansion_operation.end_ordinal = end_ordinal
projection.operations.append(arr_expansion_operation)
# Link for the Renameattributes operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/renameattributes
rename_attrs_operation = CdmOperationRenameAttributes(ctx)
rename_attrs_operation.rename_format = rename_format
projection.operations.append(rename_attrs_operation)
if count_att_name:
count_attribute = CdmTypeAttributeDefinition(ctx, count_att_name)
count_attribute.data_type = CdmDataTypeReference(ctx, 'integer', True)
# Link for the AddCountAttribute operation documentation.
# https://docs.microsoft.com/en-us/common-data-model/sdk/projections/addcountattribute
add_count_attr_operation = CdmOperationAddCountAttribute(ctx)
add_count_attr_operation.count_attribute = count_attribute
projection.operations.append(add_count_attr_operation)
def test_type_attribute_source(self):
"""Tests if setting the projection "source" on a type attribute triggers an error log"""
corpus = CdmCorpusDefinition()
error_count = 0
def callback(level: 'CdmStatusLevel', message: str):
nonlocal error_count
error_count += 1
corpus.set_event_callback(callback, CdmStatusLevel.ERROR)
projection = CdmProjection(corpus.ctx)
type_attribute = CdmTypeAttributeDefinition(corpus.ctx, 'attribute')
type_attribute.projection = projection
# First case, a projection without source.
projection.validate()
self.assertEqual(0, error_count)
# Second case, a projection with a nested projection.
inner_projection = CdmProjection(corpus.ctx)
projection.source = CdmEntityReference(corpus.ctx, inner_projection,
False)
projection.validate()
inner_projection.validate()
self.assertEqual(0, error_count)
# Third case, a projection with an explicit entity definition.
inner_projection.source = CdmEntityReference(
corpus.ctx, CdmEntityDefinition(corpus.ctx, 'Entity'), False)
projection.validate()
inner_projection.validate()
self.assertEqual(1, error_count)
error_count = 0
# Third case, a projection with a named reference.
inner_projection.source = CdmEntityReference(corpus.ctx, 'Entity',
False)
projection.validate()
inner_projection.validate()
self.assertEqual(1, error_count)