Enum Column 

pub enum Column {
    SessionId,
    UserId,
    DatasetId,
    Status,
    StartedAt,
    LastActivityAt,
    EndedAt,
    TokensIn,
    TokensOut,
    CostUsd,
    ErrorCount,
    LastModel,
}

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Variants

SessionId

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UserId

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DatasetId

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Status

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StartedAt

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LastActivityAt

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EndedAt

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TokensIn

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TokensOut

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CostUsd

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ErrorCount

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LastModel

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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 ColumnTrait for Column

type EntityName = Entity

fn def(&self) -> ColumnDef

Define a column for an Entity

fn enum_type_name(&self) -> Option<&'static str>

Get the enum name of the column type

fn select_as(&self, expr: Expr) -> SimpleExpr

Cast column expression used in select statement. It only cast database enum as text if it’s an enum column.

fn save_as(&self, val: Expr) -> SimpleExpr

Cast value of a column into the correct type for database storage. It only cast text as enum type if it’s an enum column.

fn entity_name(&self) -> SeaRc<dyn Iden>

Get the name of the entity the column belongs to

fn as_column_ref(&self) -> (SeaRc<dyn Iden>, SeaRc<dyn Iden>)

get the name of the entity the column belongs to

fn eq<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn ne<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn gt<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn gte<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn lt<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn lte<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

fn between<V>(&self, a: V, b: V) -> SimpleExpr

where V: Into<Value>,

fn not_between<V>(&self, a: V, b: V) -> SimpleExpr

where V: Into<Value>,

fn like<T>(&self, s: T) -> SimpleExpr

where T: IntoLikeExpr,

fn not_like<T>(&self, s: T) -> SimpleExpr

where T: IntoLikeExpr,

fn starts_with<T>(&self, s: T) -> SimpleExpr

where T: Into<String>,

This is a simplified shorthand for a more general like method. Use like if you need something more complex, like specifying an escape character.

fn ends_with<T>(&self, s: T) -> SimpleExpr

where T: Into<String>,

This is a simplified shorthand for a more general like method. Use like if you need something more complex, like specifying an escape character.

fn contains<T>(&self, s: T) -> SimpleExpr

where T: Into<String>,

This is a simplified shorthand for a more general like method. Use like if you need something more complex, like specifying an escape character.

fn max(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn min(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn sum(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn count(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn is_null(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn is_not_null(&self) -> SimpleExpr

See also SeaQuery’s method with same name.

fn if_null<V>(&self, v: V) -> SimpleExpr

where V: Into<Value>,

Perform an operation if the column is null

fn is_in<V, I>(&self, v: I) -> SimpleExpr

where V: Into<Value>, I: IntoIterator<Item = V>,

fn is_not_in<V, I>(&self, v: I) -> SimpleExpr

where V: Into<Value>, I: IntoIterator<Item = V>,

fn in_subquery(&self, s: SelectStatement) -> SimpleExpr

fn not_in_subquery(&self, s: SelectStatement) -> SimpleExpr

fn into_expr(self) -> Expr

Construct a SimpleExpr::Column wrapped in Expr.

fn into_returning_expr(self, db_backend: DatabaseBackend) -> Expr

Construct a returning Expr.

fn select_enum_as(&self, expr: Expr) -> SimpleExpr

Cast enum column as text; do nothing if self is not an enum.

fn save_enum_as(&self, val: Expr) -> SimpleExpr

Cast value of an enum column as enum type; do nothing if self is not an enum. Will also transform Array(Vec<Json>) into Json(Vec<Json>) if the column type is Json.

impl Copy for Column

impl Debug for Column

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

Formats the value using the given formatter.

impl FromStr for Column

type Err = ColumnFromStrErr

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Column, <Column as FromStr>::Err>

Parses a string s to return a value of this type.

impl Iden for Column

fn unquoted(&self, s: &mut dyn Write)

Write a raw identifier string without quotes.

fn prepare(&self, s: &mut dyn Write, q: Quote)

fn quoted(&self, q: Quote) -> String

fn to_string(&self) -> String

A shortcut for writing an unquoted identifier into a String.

impl IdenStatic for Column

fn as_str(&self) -> &str

Method to call to get the static string identity

impl IntoEnumIterator for Column

type Iterator = ColumnIter

fn iter() -> ColumnIter