Condition

Struct Condition 

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pub struct Condition {
    pub sql: String,
    pub values: Vec<Box<dyn AnyValue>>,
}
Expand description

Represents a SQL condition fragment with its associated bound values.

A Condition is essentially a piece of SQL (e.g. "id = $1") along with one or more values that should be bound into the query. It is designed to be used with sqlx::QueryBuilder for dynamic query construction.

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§sql: String

The raw SQL fragment (e.g. "id = $1", "name IN (...)").

§values: Vec<Box<dyn AnyValue>>

The values to be bound into the SQL fragment.

Each value is stored as a boxed AnyValue trait object, which allows heterogeneous types to be stored in the same vector.

Implementations§

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impl Condition

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pub fn new<T: BindValue + Clone + 'static>(sql: String, val: T) -> Self

Create a new Condition with a single bound value.

§Example
use sqlorm_core::qb::condition::Condition;
use sqlorm_core::qb::BindValue;

let cond = Condition::new("id = ?".to_string(), 42);
assert_eq!(cond.sql, "id = ?");
assert_eq!(cond.values.len(), 1);
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pub fn multi<T: BindValue + Clone + 'static>(sql: String, vals: Vec<T>) -> Self

Create a new Condition with multiple bound values.

Useful for IN clauses or other multi-value conditions.

§Example
use sqlorm_core::qb::condition::Condition;
use sqlorm_core::qb::BindValue;

let cond = Condition::multi("id IN (?, ?, ?)".to_string(), vec![1, 2, 3]);
assert_eq!(cond.sql, "id IN (?, ?, ?)");
assert_eq!(cond.values.len(), 3);
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pub fn none(sql: String) -> Self

Create a new Condition with no bound values.

Useful for static SQL fragments that don’t require parameters.

§Example
use sqlorm_core::qb::condition::Condition;

let cond = Condition::none("deleted_at IS NULL".to_string());
assert_eq!(cond.sql, "deleted_at IS NULL");
assert!(cond.values.is_empty());
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pub fn and(self, other: Condition) -> Self

Combine two conditions with AND

Wraps both conditions in parentheses to preserve operator precedence.

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pub fn or(self, other: Condition) -> Self

Combine two conditions with OR

Wraps both conditions in parentheses to preserve operator precedence.

Trait Implementations§

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impl Debug for Condition

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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<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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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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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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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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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Output = T

Should always be Self
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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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