Struct FieldSchema 

pub struct FieldSchema {
    pub name: &'static str,
    pub column: &'static str,
    pub ty: FieldType,
    pub nullable: bool,
    pub primary_key: bool,
    pub relation: Option<Relation>,
    pub max_length: Option<u32>,
    pub min: Option<i64>,
    pub max: Option<i64>,
    pub default: Option<&'static str>,
    pub auto: bool,
    pub unique: bool,
}

Static description of a single column on a model.

max_length, min, max carry per-field bounds populated from #[rustango(max_length = …, min = …, max = …)]. The query layer uses them to validate writes; the migration writer uses them to emit VARCHAR(N) and CHECK constraints.

default is the raw SQL fragment placed after DEFAULT in DDL (e.g. "0", "'draft'", "NOW()"). Set via #[rustango(default = "…")]. The string is inserted verbatim — it is the developer’s responsibility to write a valid Postgres expression and to quote string literals themselves.

Fields

name: &'static str

column: &'static str

ty: FieldType

nullable: bool

primary_key: bool

relation: Option<Relation>

max_length: Option<u32>

Maximum string length in characters. Only meaningful for FieldType::String.

min: Option<i64>

Inclusive integer lower bound. Only meaningful for I32/I64.

max: Option<i64>

Inclusive integer upper bound. Only meaningful for I32/I64.

default: Option<&'static str>

Raw SQL expression for the column’s DEFAULT clause, if any.

auto: bool

true for fields whose Rust type is Auto<T> — server-assigned PKs that translate to BIGSERIAL / SERIAL and skip the column from explicit INSERTs when Auto::Unset so Postgres’ DEFAULT fires. The migration writer reads this; the Auto::Unset → SQL DEFAULT translation happens in the macro-generated INSERT path.

unique: bool

true when #[rustango(unique)] is present. The DDL writer emits UNIQUE inline on the column definition.

Trait Implementations

impl Clone for FieldSchema

fn clone(&self) -> FieldSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldSchema

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

Formats the value using the given formatter.

impl Copy for FieldSchema