Struct Column 

pub struct Column { /* private fields */ }

A column reference for building expressions.

Implementations

impl Column

pub fn new(table: &str, name: &str) -> Self

Creates a new column reference with table name.

pub fn new_simple(name: &str) -> Self

Creates a simple column reference without table name. If the name contains a dot (e.g., “orders.year”), it will be parsed as table.column.

pub fn with_index(self, index: usize) -> Self

Sets the column index.

pub fn name(&self) -> String

Returns the column name.

pub fn table_name(&self) -> Option<String>

Returns the table name if set.

pub fn eq(&self, value: &JsValue) -> Expr

Creates an equality expression: column = value

pub fn ne(&self, value: &JsValue) -> Expr

Creates a not-equal expression: column != value

pub fn gt(&self, value: &JsValue) -> Expr

Creates a greater-than expression: column > value

pub fn gte(&self, value: &JsValue) -> Expr

Creates a greater-than-or-equal expression: column >= value

pub fn lt(&self, value: &JsValue) -> Expr

Creates a less-than expression: column < value

pub fn lte(&self, value: &JsValue) -> Expr

Creates a less-than-or-equal expression: column <= value

pub fn between(&self, low: &JsValue, high: &JsValue) -> Expr

Creates a BETWEEN expression: column BETWEEN low AND high

pub fn not_between(&self, low: &JsValue, high: &JsValue) -> Expr

Creates a NOT BETWEEN expression: column NOT BETWEEN low AND high

pub fn in_(&self, values: &JsValue) -> Expr

Creates an IN expression: column IN (values)

pub fn not_in(&self, values: &JsValue) -> Expr

Creates a NOT IN expression: column NOT IN (values)

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

Creates a LIKE expression: column LIKE pattern

pub fn not_like(&self, pattern: &str) -> Expr

Creates a NOT LIKE expression: column NOT LIKE pattern

pub fn regex_match(&self, pattern: &str) -> Expr

Creates a MATCH (regex) expression: column MATCH pattern

pub fn not_regex_match(&self, pattern: &str) -> Expr

Creates a NOT MATCH (regex) expression: column NOT MATCH pattern

pub fn is_null(&self) -> Expr

Creates an IS NULL expression

pub fn is_not_null(&self) -> Expr

Creates an IS NOT NULL expression

pub fn get(&self, path: &str) -> JsonbColumn

Creates a JSONB path access expression

Trait Implementations

impl Clone for Column

fn clone(&self) -> Column

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Column

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

Formats the value using the given formatter.

impl From<Column> for JsValue

fn from(value: Column) -> Self

Converts to this type from the input type.

impl FromWasmAbi for Column

type Abi = u32

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: u32) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for Column

type Abi = u32

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for Column

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<Column>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for Column

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for Column

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for Column

type Abi = u32

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<Column>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for Column

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<Column>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl TryFromJsValue for Column

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for Column

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[Column]>

impl VectorIntoWasmAbi for Column

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[Column]>) -> Self::Abi

impl WasmDescribe for Column

fn describe()

impl WasmDescribeVector for Column

fn describe_vector()

impl SupportsConstructor for Column

impl SupportsInstanceProperty for Column

impl SupportsStaticProperty for Column