Comment model

migrations/2018-05-09-192013_create_comments/down.sql

@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+DROP TABLE comments;

migrations/2018-05-09-192013_create_comments/up.sql

@@ -0,0 +1,12 @@
+-- Your SQL goes here
+CREATE TABLE comments (
+    id SERIAL PRIMARY KEY,
+    content TEXT NOT NULL DEFAULT '',
+    in_response_to_id INTEGER REFERENCES comments(id),    
+    post_id INTEGER REFERENCES posts(id) ON DELETE CASCADE NOT NULL,
+    author_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
+    creation_date TIMESTAMP NOT NULL DEFAULT now(),
+    ap_url VARCHAR,
+    sensitive BOOLEAN NOT NULL DEFAULT 'f',
+    spoiler_text TEXT NOT NULL DEFAULT ''
+)

src/models/comments.rs

@@ -0,0 +1,46 @@
+use chrono;
+use diesel::{self, PgConnection, RunQueryDsl, QueryDsl, ExpressionMethods};
+
+use schema::comments;
+
+#[derive(Queryable, Identifiable, Serialize)]
+pub struct Comment {
+    pub id: i32,
+    pub content: String,
+    pub in_response_to_id: Option<i32>,
+    pub post_id: i32,
+    pub author_id: i32,
+    pub creation_date: chrono::NaiveDateTime,
+    pub ap_url: Option<String>,
+    pub sensitive: bool,
+    pub spoiler_text: String
+}
+
+#[derive(Insertable)]
+#[table_name = "comments"]
+pub struct NewComment {
+    pub content: String,
+    pub in_response_to_id: Option<i32>,
+    pub post_id: i32,
+    pub author_id: i32,
+    pub ap_url: Option<String>,
+    pub sensitive: bool,
+    pub spoiler_text: String
+}
+
+impl Comment {
+    pub fn insert (conn: &PgConnection, new: NewComment) -> Comment {
+        diesel::insert_into(comments::table)
+            .values(new)
+            .get_result(conn)
+            .expect("Error saving new comment")
+    }
+
+    pub fn get(conn: &PgConnection, id: i32) -> Option<Comment> {
+        comments::table.filter(comments::id.eq(id))
+            .limit(1)
+            .load::<Comment>(conn)
+            .expect("Error loading comment by id")
+            .into_iter().nth(0)
+    }
+}

src/models/mod.rs

@@ -1,5 +1,6 @@
 pub mod blog_authors;
 pub mod blogs;
+pub mod comments;
 pub mod follows;
 pub mod instance;
 pub mod post_authors;

src/schema.rs

@@ -23,6 +23,20 @@ table! {
     }
 }
 
+table! {
+    comments (id) {
+        id -> Int4,
+        content -> Text,
+        in_response_to_id -> Nullable<Int4>,
+        post_id -> Int4,
+        author_id -> Int4,
+        creation_date -> Timestamp,
+        ap_url -> Nullable<Varchar>,
+        sensitive -> Bool,
+        spoiler_text -> Text,
+    }
+}
+
 table! {
     follows (id) {
         id -> Int4,
@@ -85,6 +99,8 @@ table! {
 joinable!(blog_authors -> blogs (blog_id));
 joinable!(blog_authors -> users (author_id));
 joinable!(blogs -> instances (instance_id));
+joinable!(comments -> posts (post_id));
+joinable!(comments -> users (author_id));
 joinable!(post_authors -> posts (post_id));
 joinable!(post_authors -> users (author_id));
 joinable!(posts -> blogs (blog_id));
@@ -93,6 +109,7 @@ joinable!(users -> instances (instance_id));
 allow_tables_to_appear_in_same_query!(
     blog_authors,
     blogs,
+    comments,
     follows,
     instances,
     post_authors,