headless_lms_models/library/
mod.rs

1use crate::prelude::*;
2use utoipa::ToSchema;
3
4pub mod content_management;
5pub mod copying;
6pub mod course_instances;
7pub mod course_stats;
8pub mod custom_view_exercises;
9pub mod global_stats;
10pub mod grading;
11pub mod oauth;
12pub mod page_visit_stats;
13pub mod peer_or_self_reviewing;
14pub mod progressing;
15pub mod regrading;
16pub mod students_view;
17pub mod user_exercise_state_updater;
18
19#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, ToSchema)]
20
21pub enum TimeGranularity {
22    Year,
23    Month,
24    Day,
25}
26
27impl TimeGranularity {
28    /// Returns (interval_unit, time_unit) for use in SQL queries
29    /// e.g., ("years", "year") for TimeGranularity::Year
30    pub fn get_sql_units(&self) -> (&'static str, &'static str) {
31        match self {
32            TimeGranularity::Year => ("years", "year"),
33            TimeGranularity::Month => ("months", "month"),
34            TimeGranularity::Day => ("days", "day"),
35        }
36    }
37}
38
39impl std::fmt::Display for TimeGranularity {
40    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
41        match self {
42            TimeGranularity::Year => write!(f, "Year"),
43            TimeGranularity::Month => write!(f, "Month"),
44            TimeGranularity::Day => write!(f, "Day"),
45        }
46    }
47}
48
49#[derive(Debug)]
50pub struct ParseTimeGranularityError;
51
52impl std::fmt::Display for ParseTimeGranularityError {
53    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
54        write!(f, "invalid time granularity")
55    }
56}
57
58impl std::error::Error for ParseTimeGranularityError {}
59
60impl std::str::FromStr for TimeGranularity {
61    type Err = ParseTimeGranularityError;
62
63    fn from_str(s: &str) -> Result<Self, Self::Err> {
64        match s.to_lowercase().as_str() {
65            "year" => Ok(TimeGranularity::Year),
66            "month" => Ok(TimeGranularity::Month),
67            "day" => Ok(TimeGranularity::Day),
68            _ => Err(ParseTimeGranularityError),
69        }
70    }
71}
72
73impl TryFrom<String> for TimeGranularity {
74    type Error = ParseTimeGranularityError;
75
76    fn try_from(value: String) -> Result<Self, Self::Error> {
77        value.parse()
78    }
79}
headless_lms_models/library/mod.rs

headless_lms_models/library/
mod.rs
