UpdateStatement<T extends Table, D> class
Null safety
Represents an UPDATE
statement in sql.
- Inheritance
- Mixed in types
-
- SingleTableQueryMixin<
T, D>
- SingleTableQueryMixin<
- Available Extensions
Constructors
-
UpdateStatement(DatabaseConnectionUser database, TableInfo<
T, D> table) - Used internally by drift, construct an update statement
Properties
- database ↔ DatabaseConnectionUser
-
The database this statement should be sent to.
read / writeinherited
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- limitExpr ↔ Limit?
-
The
LIMIT
clause for this statement.read / writeinherited - orderByExpr ↔ OrderBy?
-
The
ORDER BY
clause for this statementread / writeinherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
-
table
↔ ResultSetImplementation<
T, D> -
The (main) table or view that this query operates on.
read / writeinherited
- whereExpr ↔ Where?
-
The
WHERE
clause for this statementread / writeinherited - writeReturningClause ↔ bool
-
Whether a
RETURNING *
clause should be added to this statement.read / writeinherited
Methods
-
constructQuery(
) → GenerationContext -
Constructs the query that can then be sent to the database executor.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
replace(
Insertable< D> entity, {bool dontExecute = false}) → Future<bool> -
Replaces the old version of
entity
that is stored in the database with the fields of theentity
provided here. This implicitly applies a where clause to rows with the same primary key asentity
, so that only the row representing outdated data will be replaced. -
toString(
) → String -
A string representation of this object.
inherited
-
where(
Expression< bool> filter(T tbl)) → void -
Makes this statement only include rows that match the
filter
.inherited -
write(
Insertable< D> entity, {bool dontExecute = false}) → Future<int> -
Writes all non-null fields from
entity
into the columns of all rows that match the where clause. Warning: That also means that, when you're not setting a where clause explicitly, this method will update all rows in the table. -
writeInto(
GenerationContext context) → void -
Writes this component into the
context
by writing to its GenerationContext.buffer or by introducing bound variables. When writing into the buffer, no whitespace around the this component should be introduced. When a component consists of multiple composed component, it's responsible for introducing whitespace between its child components.inherited -
writeReturning(
Insertable< D> entity) → Future<List< D> > -
Applies the updates from
entity
to all rows matching the appliedwhere
clause and returns affected rows after the update. -
writeStartPart(
GenerationContext ctx) → void -
Subclasses must override this and write the part of the statement that
comes before the where and limit expression..
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited