Enum JsonParam 

pub enum JsonParam {
    Null,
    Text(String),
    Int(i64),
    Float(f64),
    Bool(bool),
}

A typed wrapper around a JSON scalar that implements [postgres::types::ToSql] for INSERT/UPDATE parameters.

The previous implementation passed every value as String, which broke non-text columns (the postgres driver can’t bind a string literal into an INTEGER / BOOLEAN / TIMESTAMPTZ slot) and silently turned JSON null into the empty string for nullable FKs (so unlink left dangling "" references instead of NULL). JsonParam carries the JSON variant tag through to to_sql so the driver can pick the correct binary representation per column type.

JSON arrays/objects collapse to their JSON-string form (TEXT) — the runtime layer doesn’t currently model array/object columns at the manifest level on Postgres, so anything that lands here came from caller-supplied prose that’s expected to fit into a TEXT column.

Variants

Null

Text(String)

Int(i64)

Float(f64)

Bool(bool)

Implementations

impl JsonParam

pub fn from_json(val: &Value) -> Self

Lift a serde_json::Value into the typed parameter form. Numbers that fit i64 go through as Int; everything else goes through as Float to preserve fractional / large-magnitude values.

Trait Implementations

impl Clone for JsonParam

fn clone(&self) -> JsonParam

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonParam

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

Formats the value using the given formatter.

impl PartialEq for JsonParam

fn eq(&self, other: &JsonParam) -> 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 StructuralPartialEq for JsonParam