Child / Table DocType

Up until now we have only seen DocTypes that can have a single value for each field.
However, there might be a need for storing multiple records against one record, also
known as many-to-one relationships. A Child DocType is doctype which can only be linked
to a parent DocType. To make a Child DocType make sure to check Is Child Table while
creating the doctype.

To link a Child Doctype to its parent, add another row in Parent Doctype with field
type Table and options as Child Table.

Child DocType records are directly attached to the parent doc.

>>> person = frappe.get_doc('Person', '000001')
>>> person.as_dict()

{
	first_name: "John",
	last_name: "Doe",
	qualifications: [
		{ title: "Frontend Architect", year: "2017" },
		{ title: "DevOps Engineer", year: "2016" },
	],
}

Child Properties

Child documents have special properties that define their relationship to their parent :

• parent: name of the parent.
• parenttype: DocType of the parent.
• parentfield: Field in the parent that links this child to it.
• idx: Sequence (row).