Struct SqliteChangeEvent 

#[non_exhaustive]
pub struct SqliteChangeEvent<'a> {
    pub op: SqliteChangeOp,
    pub db_name: &'a str,
    pub table_name: &'a str,
    pub rowid: i64,
}

Available on crate feature __sqlite-shared only.

Describes a single row change event from SQLite.

See: https://www.sqlite.org/c3ref/update_hook.html

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

op: SqliteChangeOp

The operation that triggered this event.

db_name: &'a str

The name of the database the change occurred in: "main" for the primary database, "temp" for temporary tables, or the alias from an ATTACH DATABASE statement.

table_name: &'a str

The name of the table that was modified.

rowid: i64

SQLite’s internal 64-bit rowid of the affected row. For an INTEGER PRIMARY KEY table this equals the primary key, otherwise it is a separate hidden value.

Implementations

impl SqliteChangeEvent<'_>

pub fn is_from(&self, table: impl NamedTable) -> bool

Returns true if this change is on the table! table T, comparing table_name against T’s name. Lets a callback match a typed table marker instead of a string literal:

if change.is_from(users::table) { /* ... */ }

Only the table name is compared, not the database, so a same-named table in an ATTACH-ed database also matches. Inspect db_name if you need to tell them apart.

pub fn rowid_in(&self, table: impl NamedTable) -> Option<i64>

Returns Some(rowid) if this change is on table T, otherwise None. Shorthand for is_from followed by reading rowid:

if let Some(rowid) = change.rowid_in(users::table) { let _ = rowid; }

Trait Implementations

impl<'a> Clone for SqliteChangeEvent<'a>

fn clone(&self) -> SqliteChangeEvent<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for SqliteChangeEvent<'a>

impl<'a> Debug for SqliteChangeEvent<'a>

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

Formats the value using the given formatter.