Struct exemplar::ModelMeta

pub struct ModelMeta {
    pub model: &'static str,
    pub table: &'static str,
    pub fields: &'static [&'static str],
    pub columns: &'static [&'static str],
}

Metadata about a Model implementor.

Can be retrieved via the Model::metadata and Model::metadata_dyn methods.

Fields

model: &'static str

The name of the model type.

Example

#[derive(Model)]
#[table("foos")]
pub struct Foo { 
    pub field: String 
}
 
assert_eq!("Foo", Foo::metadata().model)

table: &'static str

The name of the model table.

Example

#[derive(Model)]
#[table("foos")]
pub struct Foo { 
    pub field: String 
}
 
assert_eq!("foos", Foo::metadata().table)

fields: &'static [&'static str]

The field names of the model type, in order of their definition.

Example

#[derive(Model)]
#[table("foos")]
pub struct Foo { 
    pub bar: String,
    pub qux: String,
}
 
assert_eq!(&["bar", "qux"], Foo::metadata().fields)

columns: &'static [&'static str]

The columns of the model table.

Example

#[derive(Model)]
#[table("foos")]
pub struct Foo { 
    pub bar: String,
    #[column("baz")]
    pub qux: String,
}
 
assert_eq!(&["bar", "baz"], Foo::metadata().columns)

Trait Implementations

impl Clone for ModelMeta

fn clone(&self) -> ModelMeta

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ModelMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ModelMeta

fn eq(&self, other: &ModelMeta) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ModelMeta

impl StructuralEq for ModelMeta

impl StructuralPartialEq for ModelMeta