Module relation_preload 

Modules

combined_has_many_and_has_one_preload

Functions

bare_and_nested_includes_on_shared_prefix

basic_has_many_and_belongs_to_preload

basic_has_one_and_belongs_to_preload

multiple_includes_same_model

multiple_includes_with_has_one

nested_belongs_to_optional_then_belongs_to_optional

nested_belongs_to_optional_then_has_many

nested_belongs_to_required_then_belongs_to_required

nested_belongs_to_required_then_has_many

nested_belongs_to_required_then_has_one_optional

nested_belongs_to_required_then_has_one_required

nested_has_many_preload

nested_has_many_then_belongs_to_optional

nested_has_many_then_belongs_to_required

nested_has_many_then_has_many_with_empty_leaves

nested_has_many_then_has_one_optional

nested_has_many_then_has_one_required

nested_has_one_optional_then_belongs_to_required

nested_has_one_optional_then_has_many

nested_has_one_optional_then_has_one_optional

nested_has_one_required_then_has_many

nested_has_one_required_then_has_one_required

preload_has_many_with_optional_belongs_to

Deferred<Vec<T>> + Deferred<Option<T>>: nullable FK allows children to exist without a parent. Tests preloading from both directions.

preload_has_one_option_none_then_some

Tests that preloading a Deferred<Option<_>> correctly distinguishes between “not loaded” and “loaded as None” when the relation does not exist.

preload_has_one_optional_with_required_belongs_to

Deferred<Option<T>> + Deferred<T> (required FK): the child always points to a parent, but the parent may or may not have a child. Tests preloading from both directions.

preload_has_one_required_with_optional_belongs_to

Deferred<T> (required) + Deferred<Option<T>>: creating a parent requires providing a child, but the child FK is nullable. Tests preloading from both directions.

preload_on_empty_query

preload_on_empty_table

sibling_nested_includes_on_shared_prefix

sibling_nested_includes_on_shared_prefix_non_sql