PlaceOS::Model::Trigger::Conditions::Comparison

Deserializes the given JSON in string_or_io into an instance of self, assuming the JSON consists of an JSON object with key root, and whose value is the value to deserialize. Will not deserialise from fields with mass_assign: false

class User < ActiveModel::Model
  attribute name : String
  attribute google_id : UUID, mass_assign: false
end

User.from_json(%({"main": {"name": "Jason", "google_id": "f6f70bfb-c882-446d-8758-7ce47db39620"}}), root: "main") # => #<User:0x103131b20 @name="Jason">

Serialize from a trusted JSON source

Serialize from a trusted YAML source

Initialize PlaceOS::Model::Trigger::Conditions::Comparison from HTTP::Params.

Returns all attribute keys.

Generate code to apply default values

Assign to multiple attributes.

Assign to multiple attributes via HTTP::Params.

Assign to multiple attributes from a model object

Assign each field from JSON if field exists in JSON and has changed in model

Uses the YAML parser as JSON is valid YAML

Returns a Hash of all attribute values

Returns a NamedTuple of all attribute values.

Check if any attributes have changed.

Returns a Hash with all changed attributes.

Serialize the set of changed attributes to JSON.

Serialize the set of changed attributes to JSON.

Serialize the set of changed attributes to YAML.

Serialize the set of changed attributes to YAML.

Reset changes for all attributes.

left getter

Setters left setter

NOTE: use getter / getter! (not property / property!) so that the setter defined later in __create_initializer__ is the only setter on the field. Crystal's overload resolution silently fails to replace a property-defined setter with one of identical signature for generic types (e.g. Set(String)?, Array(String)?, String | Array(String)), although it does work for non-generic ones like String?. Defining the setter only once via __create_initializer__ ensures change tracking, sanitization, and custom setter blocks run uniformly across all types.

Returns a Tuple of the previous and the current value of an instance variable if it has changed

left's default value

Include left in the set of changed attributes, whether it has changed or not.

operator getter

operator setter

NOTE: use getter / getter! (not property / property!) so that the setter defined later in __create_initializer__ is the only setter on the field. Crystal's overload resolution silently fails to replace a property-defined setter with one of identical signature for generic types (e.g. Set(String)?, Array(String)?, String | Array(String)), although it does work for non-generic ones like String?. Defining the setter only once via __create_initializer__ ensures change tracking, sanitization, and custom setter blocks run uniformly across all types.

Returns a Tuple of the previous and the current value of an instance variable if it has changed

operator's default value

Include operator in the set of changed attributes, whether it has changed or not.

Returns a Hash of all attributes that can be persisted.

Reset each attribute to their previous values and clears all changes.

right getter

right setter

NOTE: use getter / getter! (not property / property!) so that the setter defined later in __create_initializer__ is the only setter on the field. Crystal's overload resolution silently fails to replace a property-defined setter with one of identical signature for generic types (e.g. Set(String)?, Array(String)?, String | Array(String)), although it does work for non-generic ones like String?. Defining the setter only once via __create_initializer__ ensures change tracking, sanitization, and custom setter blocks run uniformly across all types.

Returns a Tuple of the previous and the current value of an instance variable if it has changed

right's default value

Include right in the set of changed attributes, whether it has changed or not.

Validate that all non-nillable fields have values.