pub enum ComplexAttributeStrategy {
SeparateTable,
Flatten,
}Expand description
How to fold a complex attribute (composite or multivalued).
Variants§
SeparateTable
Create a separate table joined by FK to the owning entity. Always safe and is the brModelo default for multivalued attributes.
Flatten
Flatten into the owner table by prefixing column names with the composite/multivalued attribute’s name. Only valid when the maximum cardinality is small and known.
Trait Implementations§
Source§impl Clone for ComplexAttributeStrategy
impl Clone for ComplexAttributeStrategy
Source§fn clone(&self) -> ComplexAttributeStrategy
fn clone(&self) -> ComplexAttributeStrategy
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for ComplexAttributeStrategy
impl Debug for ComplexAttributeStrategy
Source§impl Default for ComplexAttributeStrategy
impl Default for ComplexAttributeStrategy
Source§fn default() -> ComplexAttributeStrategy
fn default() -> ComplexAttributeStrategy
Returns the “default value” for a type. Read more
Source§impl<'de> Deserialize<'de> for ComplexAttributeStrategy
impl<'de> Deserialize<'de> for ComplexAttributeStrategy
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Source§impl Hash for ComplexAttributeStrategy
impl Hash for ComplexAttributeStrategy
Source§impl PartialEq for ComplexAttributeStrategy
impl PartialEq for ComplexAttributeStrategy
Source§impl Serialize for ComplexAttributeStrategy
impl Serialize for ComplexAttributeStrategy
impl Copy for ComplexAttributeStrategy
impl Eq for ComplexAttributeStrategy
impl StructuralPartialEq for ComplexAttributeStrategy
Auto Trait Implementations§
impl Freeze for ComplexAttributeStrategy
impl RefUnwindSafe for ComplexAttributeStrategy
impl Send for ComplexAttributeStrategy
impl Sync for ComplexAttributeStrategy
impl Unpin for ComplexAttributeStrategy
impl UnsafeUnpin for ComplexAttributeStrategy
impl UnwindSafe for ComplexAttributeStrategy
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.