Trait rusqlite::vtab::UpdateVTab

pub trait UpdateVTab<'vtab>: CreateVTab<'vtab> {
    // Required methods
    fn delete(&mut self, arg: ValueRef<'_>) -> Result<()>;
    fn insert(&mut self, args: &Values<'_>) -> Result<i64>;
    fn update(&mut self, args: &Values<'_>) -> Result<()>;
}

Available on crate feature vtab only.

Writable virtual table instance trait.

(See SQLite doc)

Required Methods

fn delete(&mut self, arg: ValueRef<'_>) -> Result<()>

Delete rowid or PK

fn insert(&mut self, args: &Values<'_>) -> Result<i64>

Insert: args[0] == NULL: old rowid or PK, args[1]: new rowid or PK, args[2]: ...

Return the new rowid.

fn update(&mut self, args: &Values<'_>) -> Result<()>

Update: args[0] != NULL: old rowid or PK, args[1]: new row id or PK, args[2]: ...

Object Safety

This trait is not object safe.

Implementors