QueryConstraint class
Used by buildQuery and getDataInArea to define a list of constraints. Important besides the field property not more than one of the others can ne !=null.
They corespond to the possisble parameters of Firestore`s where() method.
Using QueryConstraint almost always requires to create an index for this field. Check your debug output for a message from FireStore with
a link to create them
Constructors
- QueryConstraint({required String field, dynamic isEqualTo, dynamic isLessThan, dynamic isLessThanOrEqualTo, dynamic isGreaterThan, dynamic isGreaterThanOrEqualTo, bool? isNull, dynamic arrayContains})
Properties
- arrayContains → dynamic
-
final
- field → String
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- isEqualTo → dynamic
-
final
- isGreaterThan → dynamic
-
final
- isGreaterThanOrEqualTo → dynamic
-
final
- isLessThan → dynamic
-
final
- isLessThanOrEqualTo → dynamic
-
final
- isNull → bool?
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited