Struct ColumnRef 

pub struct ColumnRef {
    pub table: &'static str,
    pub name: &'static str,
    pub sql_type: &'static str,
    pub flags: ColumnFlags,
    pub dialect: ColumnDialect,
}

A column’s table, name, and schema metadata, generated by the table macros.

SQL rendering only reads table and name (through ColumnSqlRef). Migrations read the rest.

Fields

table: &'static str

name: &'static str

sql_type: &'static str

flags: ColumnFlags

dialect: ColumnDialect

Implementations

impl ColumnRef

pub const fn sql(table: &'static str, name: &'static str) -> Self

Creates a ColumnRef with just a table and column name, for SQL rendering.

Metadata fields are empty. Use a struct literal when metadata matters.

pub const fn not_null(&self) -> bool

Returns true if this column is declared NOT NULL.

pub const fn primary_key(&self) -> bool

Returns true if this column participates in the primary key.

pub const fn unique(&self) -> bool

Returns true if this column has a UNIQUE constraint.

pub const fn has_default(&self) -> bool

Returns true if this column has a DEFAULT clause.

Trait Implementations

impl Clone for ColumnRef

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColumnRef

impl Debug for ColumnRef

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

Formats the value using the given formatter.

impl Eq for ColumnRef

impl From<&ColumnRef> for ColumnSqlRef

fn from(value: &ColumnRef) -> Self

Converts to this type from the input type.

impl From<ColumnRef> for ColumnSqlRef

fn from(value: ColumnRef) -> Self

Converts to this type from the input type.

impl<V: SQLParam> From<ColumnRef> for SQLChunk<'_, V>

fn from(value: ColumnRef) -> Self

Converts to this type from the input type.

impl PartialEq for ColumnRef

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ColumnRef

impl<'a, V: SQLParam + 'a> ToSQL<'a, V> for ColumnRef

fn to_sql(&self) -> SQL<'a, V>

Renders self as a SQL fragment.

fn into_sql(self) -> SQL<'a, V>

where Self: Sized,

Renders self as a SQL fragment, consuming it.