Enum ColumnType 

pub enum ColumnType {
    String,
    Uuid,
    Integer,
    BigInt,
}

The type of the tenant column.

Variants

String

String/VARCHAR/TEXT column.

Uuid

UUID column.

Integer

Integer column.

BigInt

BigInt column.

Implementations

impl ColumnType

pub fn placeholder(&self, index: usize) -> String

Get the SQL placeholder for this column type.

pub fn format_value(&self, value: &str) -> String

👎Deprecated since 0.11.0:

interpolates value into SQL without validation; use try_format_value, which rejects invalid UUID/integer values with a QueryError

Format a value for this column type.

Hazard

Uuid, Integer, and BigInt values are interpolated into the resulting SQL fragment without any validation or escaping. A malicious value (e.g. a raw HTTP header used as a tenant id) can inject arbitrary SQL. Use Self::try_format_value instead; the tenant middleware also validates tenant ids at the middleware boundary.

pub fn try_format_value(&self, value: &str) -> QueryResult<String>

Format a value for this column type, validating it first.

• String values must match the conservative tenant id whitelist ^[A-Za-z0-9_\-\:.@]+$ — ''-doubling alone is not sufficient on backends that honor backslash escapes (MySQL), so string ids are fail-closed instead of escaped.
• Uuid values must parse via uuid::Uuid::parse_str.
• Integer/BigInt values must parse as an i64.

Invalid input is rejected with a QueryError instead of being interpolated into SQL.

Trait Implementations

impl Clone for ColumnType

fn clone(&self) -> ColumnType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColumnType

impl Debug for ColumnType

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

Formats the value using the given formatter.

impl Default for ColumnType

fn default() -> ColumnType

Returns the “default value” for a type.

impl Eq for ColumnType

impl PartialEq for ColumnType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ColumnType