Trait SQLColumnInfo 

pub trait SQLColumnInfo: Send + Sync {
    // Required methods
    fn is_not_null(&self) -> bool;
    fn is_primary_key(&self) -> bool;
    fn is_unique(&self) -> bool;
    fn name(&self) -> &'static str;
    fn type(&self) -> &'static str;
    fn has_default(&self) -> bool;
    fn table(&self) -> &'static dyn SQLTableInfo;
}

Runtime metadata of a column, usable as a trait object.

Generated by the table macros for each column.

Required Methods

fn is_not_null(&self) -> bool

Whether the column is NOT NULL.

fn is_primary_key(&self) -> bool

Whether the column is part of the primary key.

fn is_unique(&self) -> bool

Whether the column has a UNIQUE constraint.

fn name(&self) -> &'static str

The column’s SQL name.

fn type(&self) -> &'static str

The column’s SQL type, as written in CREATE TABLE.

fn has_default(&self) -> bool

Whether the column has a default value.

fn table(&self) -> &'static dyn SQLTableInfo

The table the column belongs to.

Trait Implementations

impl Debug for dyn SQLColumnInfo

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

Formats the value using the given formatter.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T: SQLColumnInfo> SQLColumnInfo for &T

fn is_not_null(&self) -> bool

fn is_primary_key(&self) -> bool

fn is_unique(&self) -> bool

fn name(&self) -> &'static str

fn type(&self) -> &'static str

fn has_default(&self) -> bool

fn table(&self) -> &'static dyn SQLTableInfo

Implementors