dal_helpers Namespace Reference

Functions
dict[str, object]	get_attribute_info (object o)
	Dal helpers.
dict[str, object]	get_relation_info (object o)
list[str]	get_attribute_list (object o)
list[str]	get_relation_list (object o)
list[str]	get_superclass_list (object o)
list[str]	get_subclass_list (object o)
bool	compare_dal_obj (object a, object b)
None	find_related (object dal_obj, set[object] dal_group)
set[object]	find_duplicates (Iterable[object] collection)

Detailed Description

Function Documentation

compare_dal_obj()

bool compare_dal_obj	(	object	a,
		object	b )

Compare two dal objects by content

Definition at line 24 of file dal_helpers.py.

def compare_dal_obj(a: object, b: object) -> bool:
    """Compare two dal objects by content"""
 
    # TODO: add a check on a and b being dal objects
    # There is no base class for dal objects in python, but dal objects have _shcema__objects.
    
 
    if a.className() != b.className():
        return False
 
    attrs = get_attribute_list(a)
    rels = get_relation_list(a)
 
    a_attrs = {x:getattr(a, x) for x in attrs}
    b_attrs = {x:getattr(b, x) for x in attrs}
 
    a_rels = {x:getattr(a, x) for x in rels}
    b_rels = {x:getattr(b, x) for x in rels}
 
 
    return (a_attrs == b_attrs) and (a_rels == b_rels)
 
 
#---------------

find_duplicates()

set[object] find_duplicates

(

Iterable[object]

collection

)

Find duplicated dal objects in a collection by comparing objects attributes and relationships

Definition at line 74 of file dal_helpers.py.

def find_duplicates(collection: Iterable[object]) -> set[object]:
    """
    Find duplicated dal objects in a collection by comparing objects attributes and relationships
    """
    
    n_items = len(collection)
    duplicates = set()
    for i in range(n_items):
        for j in range(i+1, n_items):
            if compare_dal_obj(collection[i], collection[j]):
                duplicates.add(collection[i])
                duplicates.add(collection[j])
 
    return duplicates
 

find_related()

None find_related	(	object	dal_obj,
		set[object]	dal_group )

Definition at line 48 of file dal_helpers.py.

def find_related(dal_obj: object, dal_group: set[object]) -> None:
 
 
    rels = get_relation_list(dal_obj)
 
    rel_objs = set()
    for rel in rels:
        rel_val = getattr(dal_obj, rel)
 
        if rel_val is None:
            continue
 
        rel_objs.update(rel_val if isinstance(rel_val,list) else [rel_val])
 
    # Isolate relationship objects that are not in the dal_group yet
    new_rel_objs = rel_objs - dal_group
 
    # Safely add the new object to the group
    dal_group.update(rel_objs)
    for o in new_rel_objs:
        if o is None:
            continue
 
        find_related(o, dal_group)
        

get_attribute_info()

dict[str, object] get_attribute_info

(

object

o

)

Dal helpers.

Definition at line 6 of file dal_helpers.py.

def get_attribute_info(o: object) -> dict[str, object]:
    return o.__schema__['attribute']
 

get_attribute_list()

list[str] get_attribute_list

(

object

o

)

Definition at line 12 of file dal_helpers.py.

def get_attribute_list(o: object) -> list[str]:
    return list(get_attribute_info(o))
 

get_relation_info()

dict[str, object] get_relation_info

(

object

o

)

Definition at line 9 of file dal_helpers.py.

def get_relation_info(o: object) -> dict[str, object]:
    return o.__schema__['relation']
 

get_relation_list()

list[str] get_relation_list

(

object

o

)

Definition at line 15 of file dal_helpers.py.

def get_relation_list(o: object) -> list[str]:
    return list(get_relation_info(o))
 

get_subclass_list()

list[str] get_subclass_list

(

object

o

)

Definition at line 21 of file dal_helpers.py.

def get_subclass_list(o: object) -> list[str]:
    return o.__schema__['subclass']
 

get_superclass_list()

list[str] get_superclass_list

(

object

o

)

Definition at line 18 of file dal_helpers.py.

def get_superclass_list(o: object) -> list[str]:
    return o.__schema__['superclass']