CTEView

Struct CTEView 

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pub struct CTEView<'a, Table, Query> {
    pub table: Table,
    /* private fields */
}
Expand description

A CTE (Common Table Expression) view that wraps an aliased table with its defining query.

This struct enables type-safe CTE usage by combining:

  • An aliased table instance for typed field access
  • The CTE definition (query) for the WITH clause

§Example

let active_users = builder
    .select((user.id, user.name))
    .from(user)
    .as_cte("active_users");

// active_users.name works via Deref to the aliased table
builder
    .with(&active_users)
    .select(active_users.name)
    .from(&active_users)

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§table: Table

The aliased table for typed field access

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impl<'a, Table, Query> CTEView<'a, Table, Query>
where Query: ToSQL<'a, SQLiteValue<'a>>,

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pub fn new(table: Table, name: &'static str, query: Query) -> Self

Creates a new CTEView with the given aliased table, name, and query.

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pub fn cte_name(&self) -> &'static str

Returns the CTE name.

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pub fn query(&self) -> &Query

Returns a reference to the underlying query.

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impl<'a, Table, Query> CTEDefinition<'a> for &CTEView<'a, Table, Query>
where Query: ToSQL<'a, SQLiteValue<'a>>,

CTEDefinition for references.

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fn cte_definition(&self) -> SQL<'a, SQLiteValue<'a>>

Returns the SQL for the CTE definition (e.g., “cte_name AS (SELECT …)”)
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impl<'a, Table, Query> CTEDefinition<'a> for CTEView<'a, Table, Query>
where Query: ToSQL<'a, SQLiteValue<'a>>,

CTEDefinition implementation for CTEView.

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fn cte_definition(&self) -> SQL<'a, SQLiteValue<'a>>

Returns the SQL for the CTE definition (e.g., “cte_name AS (SELECT …)”)
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impl<'a, Table: Clone, Query: Clone> Clone for CTEView<'a, Table, Query>

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fn clone(&self) -> CTEView<'a, Table, Query>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, Table: Debug, Query: Debug> Debug for CTEView<'a, Table, Query>

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

Formats the value using the given formatter. Read more
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impl<'a, Table, Query> Deref for CTEView<'a, Table, Query>

Deref to the aliased table for field access.

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type Target = Table

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<'a, Table, Query> ToSQL<'a, SQLiteValue<'a>> for CTEView<'a, Table, Query>
where Query: ToSQL<'a, SQLiteValue<'a>>,

ToSQL implementation renders just the CTE name for use in FROM clauses. Unlike aliased tables (which render as “original” AS “alias”), CTEs should just render as their name since they’re already defined in the WITH clause.

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fn to_sql(&self) -> SQL<'a, SQLiteValue<'a>>

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fn alias(&self, alias: &'static str) -> SQL<'a, V>

Auto Trait Implementations§

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impl<'a, Table, Query> Freeze for CTEView<'a, Table, Query>
where Table: Freeze, Query: Freeze,

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impl<'a, Table, Query> RefUnwindSafe for CTEView<'a, Table, Query>
where Table: RefUnwindSafe, Query: RefUnwindSafe,

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impl<'a, Table, Query> Send for CTEView<'a, Table, Query>
where Table: Send, Query: Send,

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impl<'a, Table, Query> Sync for CTEView<'a, Table, Query>
where Table: Sync, Query: Sync,

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impl<'a, Table, Query> Unpin for CTEView<'a, Table, Query>
where Table: Unpin, Query: Unpin,

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impl<'a, Table, Query> UnwindSafe for CTEView<'a, Table, Query>
where Table: UnwindSafe, Query: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<'a, V, L, R> SQLComparable<'a, V, R> for L
where V: SQLParam + 'a, L: ToSQL<'a, V>, R: ToSQL<'a, V>,