Struct QueryBuilder

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pub struct QueryBuilder { /* private fields */ }
Expand description

Query builder for SELECT operations

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impl QueryBuilder

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pub fn select(self, columns: &str) -> Self

Select specific columns

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pub fn eq(self, column: &str, value: &str) -> Self

Add an equality filter

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pub fn neq(self, column: &str, value: &str) -> Self

Add a not equal filter

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pub fn gt(self, column: &str, value: &str) -> Self

Add a greater than filter

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pub fn gte(self, column: &str, value: &str) -> Self

Add a greater than or equal filter

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pub fn lt(self, column: &str, value: &str) -> Self

Add a less than filter

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pub fn lte(self, column: &str, value: &str) -> Self

Add a less than or equal filter

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pub fn like(self, column: &str, pattern: &str) -> Self

Add a LIKE filter

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pub fn ilike(self, column: &str, pattern: &str) -> Self

Add an ILIKE filter (case-insensitive)

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pub fn is(self, column: &str, value: &str) -> Self

Add an IS filter (for null checks)

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pub fn in(self, column: &str, values: &[&str]) -> Self

Add an IN filter

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pub fn order(self, column: &str, direction: OrderDirection) -> Self

Add ordering

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pub fn limit(self, limit: u32) -> Self

Set limit

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pub fn offset(self, offset: u32) -> Self

Set offset

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pub fn single(self) -> Self

Return single row

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pub async fn execute<T>(&self) -> Result<Vec<T>>
where T: for<'de> Deserialize<'de>,

Execute the query

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pub async fn single_execute<T>(&self) -> Result<Option<T>>
where T: for<'de> Deserialize<'de>,

Execute the query and return a single row

Trait Implementations§

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impl Clone for QueryBuilder

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fn clone(&self) -> QueryBuilder

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 Debug for QueryBuilder

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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> 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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type Output = T

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where T: Clone,

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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn vzip(self) -> V

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