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FilterExpr

regulus_db::query::builder

Enum FilterExpr

pub enum FilterExpr {
Show 13 variants    Eq {
        field: String,
        value: DbValue,
    },
    Ne {
        field: String,
        value: DbValue,
    },
    Lt {
        field: String,
        value: DbValue,
    },
    Le {
        field: String,
        value: DbValue,
    },
    Gt {
        field: String,
        value: DbValue,
    },
    Ge {
        field: String,
        value: DbValue,
    },
    In {
        field: String,
        values: Vec<DbValue>,
    },
    Contains {
        field: String,
        value: String,
    },
    IsNull {
        field: String,
    },
    IsNotNull {
        field: String,
    },
    And(Box<FilterExpr>, Box<FilterExpr>),
    Or(Box<FilterExpr>, Box<FilterExpr>),
    Not(Box<FilterExpr>),
}

Expand description

过滤表达式 AST

Variants§

Eq

Fields

§field: String

§value: DbValue

Ne

Fields

§field: String

§value: DbValue

Lt

Fields

§field: String

§value: DbValue

Le

Fields

§field: String

§value: DbValue

Gt

Fields

§field: String

§value: DbValue

Ge

Fields

§field: String

§value: DbValue

In

Fields

§field: String

§values: Vec<DbValue>

Contains

Fields

§field: String

§value: String

IsNull

Fields

§field: String

IsNotNull

Fields

§field: String

And(Box<FilterExpr>, Box<FilterExpr>)

Or(Box<FilterExpr>, Box<FilterExpr>)

Not(Box<FilterExpr>)

Trait Implementations§

impl Clone for FilterExpr

fn clone(&self) -> FilterExpr

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for FilterExpr

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for FilterExpr

impl RefUnwindSafe for FilterExpr

impl Send for FilterExpr

impl Sync for FilterExpr

impl Unpin for FilterExpr

impl UnsafeUnpin for FilterExpr

impl UnwindSafe for FilterExpr

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

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

Performs the conversion.