show waterlevel for the next days

src/model/waterlevel.rs

@@ -0,0 +1,72 @@
+use std::ops::DerefMut;
+
+use chrono::NaiveDate;
+use rocket::serde::{Deserialize, Serialize};
+use sqlx::{FromRow, Sqlite, SqlitePool, Transaction};
+
+#[derive(FromRow, Debug, Serialize, Deserialize, Eq, Hash, PartialEq, Clone)]
+pub struct Waterlevel {
+    pub id: i64,
+    pub day: NaiveDate,
+    pub time: String,
+    pub max: i64,
+    pub min: i64,
+    pub mittel: i64,
+    pub tumax: i64,
+    pub tumin: i64,
+    pub tumittel: i64,
+}
+
+impl Waterlevel {
+    pub async fn find_by_id(db: &SqlitePool, id: i32) -> Option<Self> {
+        sqlx::query_as!(Self, "SELECT * FROM waterlevel WHERE id like ?", id)
+            .fetch_one(db)
+            .await
+            .ok()
+    }
+    pub async fn find_by_id_tx(db: &mut Transaction<'_, Sqlite>, id: i32) -> Option<Self> {
+        sqlx::query_as!(Self, "SELECT * FROM waterlevel WHERE id like ?", id)
+            .fetch_one(db.deref_mut())
+            .await
+            .ok()
+    }
+
+    pub async fn create(
+        db: &mut Transaction<'_, Sqlite>,
+        day: NaiveDate,
+        time: String,
+        max: i64,
+        min: i64,
+        mittel: i64,
+        tumax: i64,
+        tumin: i64,
+        tumittel: i64,
+    ) -> Result<(), String> {
+        sqlx::query!(
+            "INSERT INTO waterlevel(day, time, max, min, mittel, tumax, tumin, tumittel) VALUES (?,?,?,?,?,?,?,?)",
+            day, time, max, min, mittel, tumax, tumin, tumittel
+        )
+        .execute(db.deref_mut())
+        .await
+        .map_err(|e| e.to_string())?;
+        Ok(())
+    }
+
+    pub async fn max_waterlevel_for_day(db: &SqlitePool, day: NaiveDate) -> Option<i64> {
+        sqlx::query!(
+            "SELECT MAX(mittel) as max FROM waterlevel WHERE day = ?",
+            day
+        )
+        .fetch_one(db)
+        .await
+        .unwrap()
+        .max
+    }
+
+    pub async fn delete_all(db: &mut Transaction<'_, Sqlite>) {
+        sqlx::query!("DELETE FROM waterlevel;")
+            .execute(db.deref_mut())
+            .await
+            .unwrap();
+    }
+}