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({String field, dynamic isEqualTo, dynamic isLessThan, dynamic isLessThanOrEqualTo, dynamic isGreaterThan, dynamic isGreaterThanOrEqualTo, bool isNull, dynamic arrayContains })
Properties
- arrayContains → dynamic
-
final
- field → String
-
final
- isEqualTo → dynamic
-
final
- isGreaterThan → dynamic
-
final
- isGreaterThanOrEqualTo → dynamic
-
final
- isLessThan → dynamic
-
final
- isLessThanOrEqualTo → dynamic
-
final
- isNull → bool
-
final
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited