Trait Operations 

pub trait Operations {
    // Required methods
    fn execute<'a, F>(
        &self,
        statement: String,
        callback_fn: Option<F>,
    ) -> Result<SqlitePrimaryResult, MinSqliteWrapperError<'a>>
       where F: FnOnce(SqlitePrimaryResult, String);
    fn prepare<'a, F>(
        &self,
        statement: String,
        callback_fn: Option<F>,
    ) -> Result<SqlStatement, MinSqliteWrapperError<'a>>
       where F: FnOnce(SqlitePrimaryResult, String);
}

Defines SQL functions.

Required Methods

fn execute<'a, F>( &self, statement: String, callback_fn: Option<F>, ) -> Result<SqlitePrimaryResult, MinSqliteWrapperError<'a>>

where F: FnOnce(SqlitePrimaryResult, String),

A wrapper around prepare(), execute_prepared(), and kill(), that allows an application to run multiple statements of SQL without having to use a lot of Rust code.

Warning

This function does not provide to read data from SQLite.

Usage

let db_path = Path::new(“./example.db”); let db = Database::open(db_path).unwrap();

let status = db.execute(statement, None::<Box<dyn FnOnce(SqlitePrimaryResult, String)>>).unwrap();

if status != SqlitePrimaryResult::Ok { … }

db.close();

fn prepare<'a, F>( &self, statement: String, callback_fn: Option<F>, ) -> Result<SqlStatement, MinSqliteWrapperError<'a>>

where F: FnOnce(SqlitePrimaryResult, String),

Prepares SQL operation to be executed and then destroy.

Warning

kill() must be called for each result of the prepare() function in order to avoid resource leak.

Usage

let db_path = Path::new(“./example.db”); let db = Database::open(db_path).unwrap();

let statement = String::from( “SELECT * FROM example_table WHERE ID = ‘15’;” );

let mut sql = db.prepare(statement, None::<Box<dyn FnOnce(SqlitePrimaryResult, String)>>).unwrap();

while let PreparedStatementStatus::FoundRow = sql.execute_prepared() { … }

sql.kill(); db.close();

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Operations for Database