Enum Source 

pub enum Source {
    Model(SourceModel),
    Table(SourceTable),
}

The data source for a Select statement’s FROM clause.

At the model level, the source references a model (optionally navigated via an association). After lowering, the source becomes a table with joins.

Examples

use toasty_core::stmt::Source;
use toasty_core::schema::app::ModelId;

let source = Source::from(ModelId(0));
assert!(source.is_model());
assert!(!source.is_table());

Variants

Model(SourceModel)

Source is a model (app-level).

Table(SourceTable)

Source is a database table (lowered/DB-level).

Implementations

impl Source

pub fn table_with_joins( tables: Vec<TableRef>, from_item: TableWithJoins, ) -> Self

Creates a table source from explicit table refs and a table-with-joins specification.

pub fn is_model(&self) -> bool

Returns true if this is a Model source.

pub fn as_model(&self) -> Option<&SourceModel>

Returns a reference to the inner SourceModel if this is a Model variant.

pub fn as_model_unwrap(&self) -> &SourceModel

Returns a reference to the inner SourceModel.

Panics

Panics if this is not a Model source.

pub fn model_id(&self) -> Option<ModelId>

Returns the model ID if this is a Model source.

pub fn model_id_unwrap(&self) -> ModelId

Returns the model ID, panicking if this is not a Model source.

pub fn is_table(&self) -> bool

Returns true if this is a Table source.

pub fn table(table: impl Into<TableRef>) -> Self

Creates a Table source from a single table reference with no joins.

pub fn as_table(&self) -> Option<&SourceTable>

Returns a reference to the inner SourceTable if this is a Table variant.

pub fn as_table_unwrap(&self) -> &SourceTable

Returns a reference to the inner SourceTable.

Panics

Panics if this is not a Table source.

Trait Implementations

impl Clone for Source

fn clone(&self) -> Source

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Source

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

Formats the value using the given formatter.

impl From<&ModelRoot> for Source

fn from(value: &ModelRoot) -> Self

Converts to this type from the input type.

impl From<ExprArg> for Source

fn from(value: ExprArg) -> Self

Converts to this type from the input type.

impl From<ModelId> for Source

fn from(value: ModelId) -> Self

Converts to this type from the input type.

impl From<SourceTable> for Source

fn from(value: SourceTable) -> Self

Converts to this type from the input type.

impl From<TableId> for Source

fn from(value: TableId) -> Self

Converts to this type from the input type.

impl From<TableRef> for Source

fn from(value: TableRef) -> Self

Converts to this type from the input type.

impl<'a, T: Resolve> IntoExprTarget<'a, T> for &'a Source

fn into_expr_target(self, schema: &'a T) -> ExprTarget<'a>

Converts self into an ExprTarget using the provided schema.

impl PartialEq for Source

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for Source