pub struct FieldExpr<T>where
    T: Into<SqlVal>,{ /* private fields */ }
Expand description

Used to implement the query! and filter! macros.

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impl<T> FieldExpr<T>where T: Into<SqlVal>,

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pub fn new(name: &'static str) -> Self

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

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pub fn eq<U>(&self, val: &U) -> BoolExprwhere T: PartialEq<U>, U: ToSql,

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pub fn ne<U>(&self, val: &U) -> BoolExprwhere T: PartialEq<U>, U: ToSql,

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pub fn lt<U>(&self, val: &U) -> BoolExprwhere T: DataOrd<U>, U: ToSql,

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pub fn gt<U>(&self, val: &U) -> BoolExprwhere T: DataOrd<U>, U: ToSql,

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pub fn le<U>(&self, val: &U) -> BoolExprwhere T: DataOrd<U>, U: ToSql,

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pub fn ge<U>(&self, val: &U) -> BoolExprwhere T: DataOrd<U>, U: ToSql,

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pub fn like<U>(&self, val: U) -> BoolExprwhere U: ToSql,

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impl<F: DataObject> FieldExpr<ForeignKey<F>>

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pub fn subfilter(&self, q: BoolExpr) -> BoolExpr

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pub fn subfilterpk(&self, pk: F::PKType) -> BoolExpr

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pub fn fields(&self) -> F::Fields

Trait Implementations§

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impl<T> Debug for FieldExpr<T>where T: Into<SqlVal> + Debug,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for FieldExpr<T>where T: RefUnwindSafe,

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impl<T> Send for FieldExpr<T>where T: Send,

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impl<T> Sync for FieldExpr<T>where T: Sync,

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impl<T> Unpin for FieldExpr<T>where T: Unpin,

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impl<T> UnwindSafe for FieldExpr<T>where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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 Twhere 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<T, U> TryFrom<U> for Twhere 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 Twhere 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.