Struct RowChange 

pub struct RowChange {
    pub table: String,
    pub op: ChangeOp,
    pub columns: Vec<Option<String>>,
}

One row change extracted from a changeset.

columns holds the row’s column values in schema order. The value chosen per column follows the changeset’s old/new semantics:

• Insert: the new value.
• Delete: the old value.
• Update: the old value if present, else the new value (so unchanged columns — primary keys, foreign keys — are still available).

None means SQL NULL or a column absent from the changeset.

Fields

table: String

op: ChangeOp

columns: Vec<Option<String>>

Implementations

impl RowChange

pub fn pk(&self) -> Option<&str>

The primary key (column 0).

pub fn col(&self, i: usize) -> Option<&str>

A column value by index.

Trait Implementations

impl Clone for RowChange

fn clone(&self) -> RowChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowChange

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

Formats the value using the given formatter.