1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2025 Haixing Hu
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////////////
//! Traits for unique identifier functionality
//!
//! # Author
//!
//! Haixing Hu
/// A trait indicating that an entity class has an ID property
///
/// This trait provides access and setting functionality for the unique
/// identifier (ID) of domain objects.
///
/// # Example
///
/// ```rust
/// use qubit_mixin::Identifiable;
///
/// struct User {
/// id: Option<i64>,
/// name: String,
/// }
///
/// impl Identifiable for User {
/// fn id(&self) -> Option<i64> {
/// self.id
/// }
///
/// fn set_id(&mut self, id: Option<i64>) {
/// self.id = id;
/// }
/// }
///
/// let mut user = User {
/// id: None,
/// name: "Alice".to_string(),
/// };
/// user.set_id(Some(1));
/// assert_eq!(user.id(), Some(1));
/// ```
///
/// # Author
///
/// Haixing Hu