Filter class

Used for filtering data

It should be used inside a map as a value for comparison Example:

final filter = {
  'name': Filter.eq('John'),
  'id': Filter.gte(5),
  'amount': Filter.between(5, 10),
  'or': Filter.or([
    {'name': Filter.notEq('Evan')},
    {'name': Filter.notEq('Mark')},
  ]),
  'author': Filter.relation(
    'name',
    Filter.eq('Rijk van Zanten'),
   ),
};

Constructors

Filter(Object? value)

Check if the values are equal

Filter.and(List<Map<String, Filter>> filters)

Filter.between(Object? from, Object? to)

Check to see if value is between.

Filter.contains(Object? value)

Check to see if field contains value.

Filter.empty()

Check to see if value is empty.

Filter.eq(Object? value)

Check if the values are equal.

Filter.gt(Object? value)

Check to see if value is greater then.

Filter.gte(Object? value)

Check to see if value is greater then or equal.

Filter.isIn(List value)

Check to see if value in is provided list.

Filter.isNull()

Check to see if value is null.

Filter.lt(Object? value)

Check to see if value is less then.

Filter.lte(Object? value)

Check to see if value is less then or equal.

Filter.notBetween(Object? from, Object? to)

Check to see if value is not between.

Filter.notContains(Object? value)

Check to see if field does not contain value.

Filter.notEmpty()

Check to see if value is not empty.

Filter.notEq(Object? value)

Check if the values are not equal.

Filter.notIn(List value)

Check to see if field in not is provided list.

Filter.notNull()

Check to see if value is not null.

Filter.or(List<Map<String, Filter>> filters)

Filter.relation(String value, Filter filter)

Relation

const

Properties

comparison → String

Comparison that will be done (equal, not equal, less then...).

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → Object?

Value to compare it to

final

Methods

convertFilterList(List<Map<String, Filter>> filters) → List<Map<String, Object?>>

Convert List to List.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toMapEntry(String field) → MapEntry<String, Object?>

Convert filter to MapEntry, with provided field name.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited