Struct ColumnSchema 

pub struct ColumnSchema {

    pub name: String,
    pub column_type: ColumnType,
    pub nullable: bool,
    pub default: Option<String>,
    pub unique: bool,
    pub primary_key: bool,
    pub auto_increment: bool,
    pub indexed: bool,
    pub index_name: Option<String>,
    pub max_length: Option<u32>,
    pub min_length: Option<u32>,
    pub range: Option<RangeConstraint>,
    pub soft_delete: bool,
    pub renamed_from: Option<String>,
    pub dropped: bool,
}

Represents a database column

Fields

name: String

Column name

column_type: ColumnType

Column data type

nullable: bool

Whether the column allows NULL values

default: Option<String>

Default value expression (SQL string)

unique: bool

Whether the column has a unique constraint

primary_key: bool

Whether this column is part of the primary key

auto_increment: bool

Whether the primary key auto-increments

indexed: bool

Whether this column has an index

index_name: Option<String>

Index name if indexed

max_length: Option<u32>

Max length for string types

min_length: Option<u32>

Min length for string types (validation only)

range: Option<RangeConstraint>

Range constraints for numeric types (validation only)

soft_delete: bool

Whether this is a soft delete marker column

renamed_from: Option<String>

For delta migrations: this column was renamed from another

dropped: bool

For delta migrations: this column should be dropped

Implementations

impl ColumnSchema

pub fn new(name: impl Into<String>, column_type: ColumnType) -> Self

Create a new column with the given name and type

pub fn nullable(self, nullable: bool) -> Self

Set nullable

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

Set default value

pub fn primary_key(self, auto_increment: bool) -> Self

Set as primary key

pub fn indexed(self) -> Self

Set as indexed

pub fn unique(self) -> Self

Set as unique

pub fn max_length(self, len: u32) -> Self

Set max length

Trait Implementations

impl Clone for ColumnSchema

fn clone(&self) -> ColumnSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnSchema

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnSchema

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ColumnSchema

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ColumnSchema

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ColumnSchema

impl StructuralPartialEq for ColumnSchema