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assignment

queryweave_sql::diesel

Function assignment 

Source 
pub fn assignment<C>(
    column: C,
    field_value: FieldValue,
) -> Result<Eq<C, ValueOf<C>>, ValueMismatch>
where
    C: Expression + ExpressionMethods,
    C::SqlType: SqlType + TypedExpressionType + ColumnValue,
    ValueOf<C>: AsExpression<C::SqlType>,
Expand description

The assignment column = value for a merge-patch write of the model.

The column is the one the entity stores the domain field in; the assignment is one item of a changeset (Options of these, None for the unchanged columns).

§Errors

ValueMismatch if the value does not fit the column’s SQL type.