class
   System::Group
 
  
  Overview
Represents a group of users on the host system.
NOTE  To use Group, you must explicitly import it with require "system/group"
Groups can be retrieved by either group name or their group ID:
require "system/group"
System::Group.find_by name: "staff"
System::Group.find_by id: "0"Included Modules
- Crystal::System::Group
Defined in:
system/group.crClass Method Summary
- 
        .find_by(*, name : String) : System::Group
        
          Returns the group associated with the given name. 
- 
        .find_by(*, id : String) : System::Group
        
          Returns the group associated with the given ID. 
- 
        .find_by?(*, name : String) : System::Group | Nil
        
          Returns the group associated with the given name. 
- 
        .find_by?(*, id : String) : System::Group | Nil
        
          Returns the group associated with the given ID. 
Instance Method Summary
- 
        #==(other : self)
        
          Returns trueif this reference is the same as other.
- #hash(hasher)
- 
        #id : String
        
          The group's identifier. 
- 
        #name : String
        
          The group's name. 
- #to_s(io)
Instance methods inherited from module Crystal::System::Group
  
  
    
      system_id
    system_id, 
    
  
    
      system_name
    system_name
    
  
      
  Constructor methods inherited from module Crystal::System::Group
  
  
    
      new(name : String, id : String)
    new
    
  
      
  Class methods inherited from module Crystal::System::Group
  
  
    
      from_id?(groupid : String)
    from_id?, 
    
  
    
      from_name?(groupname : String)
    from_name?
    
  
      
    
      
  Instance methods inherited from class Reference
  
  
    
      ==(other : self)==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==, dup dup, hash(hasher) hash, initialize initialize, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference) : Bool
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
  
  
    
      new
    new, 
    
  
    
      unsafe_construct(address : Pointer, *args, **opts) : self
    unsafe_construct
    
  
      
  Class methods inherited from class Reference
  
  
    
      pre_initialize(address : Pointer)
    pre_initialize
    
  
      
    
      
  Instance methods inherited from class Object
  
  
    
      ! : Bool
    !, 
    
  
    
      !=(other)
    !=, 
    
  
    
      !~(other)
    !~, 
    
  
    
      ==(other)
    ==, 
    
  
    
      ===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, as(type : Class) as, as?(type : Class) as?, class class, dup dup, hash(hasher)
hash hash, in?(collection : Object) : Bool
in?(*values : Object) : Bool in?, inspect(io : IO) : Nil
inspect : String inspect, is_a?(type : Class) : Bool is_a?, itself itself, nil? : Bool nil?, not_nil!(message)
not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, responds_to?(name : Symbol) : Bool responds_to?, tap(&) tap, to_json(io : IO) : Nil
to_json : String to_json, to_pretty_json(indent : String = " ") : String
to_pretty_json(io : IO, indent : String = " ") : Nil to_pretty_json, to_s(io : IO) : Nil
to_s : String to_s, to_yaml(io : IO) : Nil
to_yaml : String to_yaml, try(&) try, unsafe_as(type : T.class) forall T unsafe_as
Class methods inherited from class Object
  
  
    
      from_json(string_or_io, root : String)from_json(string_or_io) from_json, from_yaml(string_or_io : String | IO) from_yaml
Macros inherited from class Object
  
  
    
      class_getter(*names, &block)
    class_getter, 
    
  
    
      class_getter!(*names)
    class_getter!, 
    
  
    
      class_getter?(*names, &block)
    class_getter?, 
    
  
    
      class_property(*names, &block)
    class_property, 
    
  
    
      class_property!(*names)
    class_property!, 
    
  
    
      class_property?(*names, &block)
    class_property?, 
    
  
    
      class_setter(*names)
    class_setter, 
    
  
    
      def_clone
    def_clone, 
    
  
    
      def_equals(*fields)
    def_equals, 
    
  
    
      def_equals_and_hash(*fields)
    def_equals_and_hash, 
    
  
    
      def_hash(*fields)
    def_hash, 
    
  
    
      delegate(*methods, to object)
    delegate, 
    
  
    
      forward_missing_to(delegate)
    forward_missing_to, 
    
  
    
      getter(*names, &block)
    getter, 
    
  
    
      getter!(*names)
    getter!, 
    
  
    
      getter?(*names, &block)
    getter?, 
    
  
    
      property(*names, &block)
    property, 
    
  
    
      property!(*names)
    property!, 
    
  
    
      property?(*names, &block)
    property?, 
    
  
    
      setter(*names)
    setter
    
  
    
  Class Method Detail
Returns the group associated with the given name.
Returns nil if no such group exists.
Returns the group associated with the given ID.
Returns nil if no such group exists.