SQLAlchemy - Writing a hybrid method for child count

SQLAlchemy - Writing a hybrid method for child count

References

Reference NO 1

http://stackoverflow.com/questions/13640298/sqlalchemy-writing-a-hybrid-method-for-child-count

Reference NO 2

http://stackoverflow.com/questions/16649637/sqlalchemy-hierarchical-hybrid-transformation

Reference NO 3

http://stackoverflow.com/questions/4896104/creating-a-tree-from-self-referential-tables-in-sqlalchemy

Reference NO 4

http://stackoverflow.com/questions/14487386/sqlalchemy-recursive-hybrid-property-in-a-tree-node

Reference NO 5

http://docs.sqlalchemy.org/ru/latest/orm/query.html

Reference NO 6

http://docs.sqlalchemy.org/en/rel_0_7/orm/query.html

Reference NO 7

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Reference NO 8

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