comment, interaction db

src/database/comment.rs

@@ -1 +1,76 @@
+use chrono::{DateTime, Utc};
+use sqlx::{Pool, Postgres};
 
+use crate::feature::comment::Comment;
+
+pub async fn create(
+    post_creation_time: DateTime<Utc>,
+    creation_time: DateTime<Utc>,
+    commenter_id: i64,
+    comment: &String,
+    database_connection: &Pool<Postgres>,
+) -> Result<Comment, sqlx::Error> {
+    sqlx::query_as!(
+        Comment,
+        r#"
+            INSERT INTO "comment"(post_creation_time, creation_time, commenter_id, comment) 
+            VALUES ($1, $2, $3, $4) 
+            RETURNING *
+        "#,
+        post_creation_time,
+        creation_time,
+        commenter_id,
+        comment,
+    )
+    .fetch_one(database_connection)
+    .await
+}
+
+pub async fn read(
+    creation_time: DateTime<Utc>,
+    database_connection: &Pool<Postgres>,
+) -> Result<Comment, sqlx::Error> {
+    sqlx::query_as!(
+        Comment,
+        r#"
+            SELECT * FROM "comment" WHERE "creation_time" = $1
+        "#,
+        creation_time
+    )
+    .fetch_one(database_connection)
+    .await
+}
+
+pub async fn update(
+    creation_time: DateTime<Utc>,
+    comment: &String,
+    database_connection: &Pool<Postgres>,
+) -> Result<Comment, sqlx::Error> {
+    sqlx::query_as!(
+        Comment,
+        r#"
+        UPDATE "comment" SET "comment" = $1 WHERE "creation_time" = $2
+        RETURNING *
+    "#,
+        comment,
+        creation_time
+    )
+    .fetch_one(database_connection)
+    .await
+}
+
+pub async fn delete(
+    creation_time: DateTime<Utc>,
+    database_connection: &Pool<Postgres>,
+) -> Result<Comment, sqlx::Error> {
+    sqlx::query_as!(
+        Comment,
+        r#"
+        DELETE FROM "comment" where "creation_time" = $1
+        RETURNING *
+    "#,
+        creation_time
+    )
+    .fetch_one(database_connection)
+    .await
+}