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
79
80
////////////////////////////////////////////////////////////////////////////////
//
// 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 creation time recording functionality
//!
//! # Author
//!
//! Haixing Hu
use ;
/// A trait indicating that an entity class records the creation time
///
/// This trait provides access and setting functionality for the creation
/// time of domain objects, used to record the timestamp when an object
/// was first created.
///
/// # Example
///
/// ```rust
/// use chrono::{DateTime, Utc};
/// use qubit_mixin::Creatable;
///
/// struct Article {
/// title: String,
/// create_time: DateTime<Utc>,
/// }
///
/// impl Creatable for Article {
/// fn create_time(&self) -> DateTime<Utc> {
/// self.create_time
/// }
///
/// fn set_create_time(&mut self, time: DateTime<Utc>) {
/// self.create_time = time;
/// }
/// }
///
/// let now = Utc::now();
/// let mut article = Article {
/// title: "Hello".to_string(),
/// create_time: now,
/// };
/// assert_eq!(article.create_time(), now);
/// ```
///
/// # Author
///
/// Haixing Hu