diesel::connection

Struct StrQueryHelper

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#[non_exhaustive]
pub struct StrQueryHelper<'query> { /* private fields */ }
Expand description

A helper type that allows printing out str slices

This type is necessary because it’s not possible to cast from a reference of a unsized type like &str to a reference of a trait object even if that type implements all necessary traits

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impl<'query> StrQueryHelper<'query>

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pub fn new(s: &'query str) -> Self

Construct a new StrQueryHelper

Trait Implementations§

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impl Debug for StrQueryHelper<'_>

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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 Display for StrQueryHelper<'_>

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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 DebugQuery for StrQueryHelper<'_>

Auto Trait Implementations§

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impl<'query> Freeze for StrQueryHelper<'query>

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impl<'query> RefUnwindSafe for StrQueryHelper<'query>

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impl<'query> Send for StrQueryHelper<'query>

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impl<'query> Sync for StrQueryHelper<'query>

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impl<'query> Unpin for StrQueryHelper<'query>

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impl<'query> UnwindSafe for StrQueryHelper<'query>

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> 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<T> IntoSql for T

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fn into_sql<T>(self) -> AsExprOf<Self, T>
where Self: AsExpression<T> + Sized, T: SqlType + TypedExpressionType,

Convert self to an expression for Diesel’s query builder. Read more
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fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>
where &'a Self: AsExpression<T>, T: SqlType + TypedExpressionType,

Convert &self to an expression for Diesel’s query builder. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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.