Struct ColumnBuilder 

pub struct ColumnBuilder { /* private fields */ }

Type-safe column definition builder.

Provides a fluent API for building column definitions with all constraints.

Implementations

impl ColumnBuilder

pub fn new(name: impl Into<String>, data_type: DataType) -> Self

Creates a new column builder with name and type.

pub fn not_null(self) -> Self

Marks the column as NOT NULL.

pub fn nullable(self) -> Self

Marks the column as nullable (default).

pub fn primary_key(self) -> Self

Marks the column as PRIMARY KEY.

pub fn unique(self) -> Self

Marks the column as UNIQUE.

pub fn autoincrement(self) -> Self

Marks the column as AUTOINCREMENT.

pub fn default_bool(self, value: bool) -> Self

Sets a boolean default value.

pub fn default_int(self, value: i64) -> Self

Sets an integer default value.

pub fn default_float(self, value: f64) -> Self

Sets a float default value.

pub fn default_str(self, value: impl Into<String>) -> Self

Sets a string default value.

pub fn default_null(self) -> Self

Sets a NULL default value.

pub fn default_expr(self, expr: impl Into<String>) -> Self

Sets a raw SQL expression as default (e.g., CURRENT_TIMESTAMP).

pub fn references( self, table: impl Into<String>, column: impl Into<String>, ) -> Self

Sets a foreign key reference.

pub fn references_on_delete( self, table: impl Into<String>, column: impl Into<String>, on_delete: ForeignKeyAction, ) -> Self

Sets a foreign key reference with ON DELETE action.

pub fn references_full( self, table: impl Into<String>, column: impl Into<String>, on_delete: Option<ForeignKeyAction>, on_update: Option<ForeignKeyAction>, ) -> Self

Sets a foreign key reference with full options.

pub fn check(self, expr: impl Into<String>) -> Self

Adds a CHECK constraint.

pub fn collation(self, collation: impl Into<String>) -> Self

Sets the collation for string columns.

pub fn build(self) -> ColumnDefinition

Builds the column definition.

Trait Implementations

impl Clone for ColumnBuilder

fn clone(&self) -> ColumnBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnBuilder

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

Formats the value using the given formatter.