headless_lms_models/library/
mod.rs

1use crate::prelude::*;
2
3pub mod content_management;
4pub mod copying;
5pub mod course_instances;
6pub mod course_stats;
7pub mod custom_view_exercises;
8pub mod global_stats;
9pub mod grading;
10pub mod oauth;
11pub mod page_visit_stats;
12pub mod peer_or_self_reviewing;
13pub mod progressing;
14pub mod regrading;
15pub mod user_exercise_state_updater;
16
17#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
18#[cfg_attr(feature = "ts_rs", derive(TS))]
19pub enum TimeGranularity {
20    Year,
21    Month,
22    Day,
23}
24
25impl TimeGranularity {
26    /// Returns (interval_unit, time_unit) for use in SQL queries
27    /// e.g., ("years", "year") for TimeGranularity::Year
28    pub fn get_sql_units(&self) -> (&'static str, &'static str) {
29        match self {
30            TimeGranularity::Year => ("years", "year"),
31            TimeGranularity::Month => ("months", "month"),
32            TimeGranularity::Day => ("days", "day"),
33        }
34    }
35}
36
37impl std::fmt::Display for TimeGranularity {
38    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
39        match self {
40            TimeGranularity::Year => write!(f, "Year"),
41            TimeGranularity::Month => write!(f, "Month"),
42            TimeGranularity::Day => write!(f, "Day"),
43        }
44    }
45}
46
47#[derive(Debug)]
48pub struct ParseTimeGranularityError;
49
50impl std::fmt::Display for ParseTimeGranularityError {
51    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
52        write!(f, "invalid time granularity")
53    }
54}
55
56impl std::error::Error for ParseTimeGranularityError {}
57
58impl std::str::FromStr for TimeGranularity {
59    type Err = ParseTimeGranularityError;
60
61    fn from_str(s: &str) -> Result<Self, Self::Err> {
62        match s.to_lowercase().as_str() {
63            "year" => Ok(TimeGranularity::Year),
64            "month" => Ok(TimeGranularity::Month),
65            "day" => Ok(TimeGranularity::Day),
66            _ => Err(ParseTimeGranularityError),
67        }
68    }
69}
70
71impl TryFrom<String> for TimeGranularity {
72    type Error = ParseTimeGranularityError;
73
74    fn try_from(value: String) -> Result<Self, Self::Error> {
75        value.parse()
76    }
77}
headless_lms_models/library/mod.rs

headless_lms_models/library/
mod.rs
