mithril_aggregator/database/query/open_message/
delete_open_message.rs

1use sqlite::Value;
2
3use mithril_common::entities::Epoch;
4use mithril_persistence::sqlite::{Query, SourceAlias, SqLiteEntity, WhereCondition};
5
6use crate::database::record::OpenMessageRecord;
7
8/// Query to delete old [OpenMessageRecord] from the sqlite database
9pub struct DeleteOpenMessageQuery {
10    condition: WhereCondition,
11}
12
13impl DeleteOpenMessageQuery {
14    pub fn below_epoch_threshold(epoch: Epoch) -> Self {
15        Self {
16            condition: WhereCondition::new(
17                "epoch_setting_id < ?*",
18                vec![Value::Integer(*epoch as i64)],
19            ),
20        }
21    }
22}
23
24impl Query for DeleteOpenMessageQuery {
25    type Entity = OpenMessageRecord;
26
27    fn filters(&self) -> WhereCondition {
28        self.condition.clone()
29    }
30
31    fn get_definition(&self, condition: &str) -> String {
32        let aliases = SourceAlias::new(&[("{:open_message:}", "open_message")]);
33        let projection = Self::Entity::get_projection().expand(aliases);
34
35        format!("delete from open_message where {condition} returning {projection}")
36    }
37}