Function block_tools::db::use_diesel::dsl::not [−][src]
pub fn not<T>(expr: T) -> Not<Grouped<<T as AsExpression<Bool>>::Expression>> where
T: AsExpression<Bool>,
Creates a SQL NOT
expression
Example
use diesel::dsl::not; let users_with_name = users.select(id).filter(name.eq("Sean")); let users_not_with_name = users.select(id).filter( not(name.eq("Sean"))); assert_eq!(Ok(1), users_with_name.first(&connection)); assert_eq!(Ok(2), users_not_with_name.first(&connection));