Struct ColumnInfo 

pub struct ColumnInfo {
    pub name: &'static str,
    pub rust_type: &'static str,
    pub is_primary_key: bool,
    pub is_auto_increment: bool,
    pub is_index: bool,
    pub is_unique: bool,
    pub unique_index_name: Option<&'static str>,
}

Metadata about a single column in a model’s table schema.

Generated automatically by #[derive(DeriveModel)] and used by [QueryBuilder::create_table] to generate DDL statements.

Example

use grorm::{DeriveModel, ColumnInfo, Model};

#[derive(Debug, DeriveModel)]
#[table = "users"]
struct User {
    id: i64,
    #[index]
    name: String,
    #[unique]
    email: String,
    age: i32,
}

let schema = User::table_schema();
assert_eq!(schema.len(), 4);
assert!(schema[0].is_primary_key);
assert!(schema[1].is_index);
assert!(schema[2].is_unique);

Fields

name: &'static str

Column name in the database

rust_type: &'static str

Rust type name (e.g. "i64", "String")

is_primary_key: bool

Whether this column is part of the primary key

is_auto_increment: bool

Whether this column is auto-increment (integer primary key)

is_index: bool

Whether a regular index should be created on this column (#[index])

is_unique: bool

Whether a unique constraint should be created on this column (#[unique])

unique_index_name: Option<&'static str>

Name of the composite unique index group (#[unique_index = "name"]). Columns with the same name form a composite unique index.

Trait Implementations

impl Clone for ColumnInfo

fn clone(&self) -> ColumnInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnInfo

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

Formats the value using the given formatter.