lemmy/server/src/db/post.rs

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use super::*;
use crate::schema::{post, post_like, post_read, post_saved};
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#[derive(Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize)]
#[table_name = "post"]
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pub struct Post {
pub id: i32,
pub name: String,
pub url: Option<String>,
pub body: Option<String>,
pub creator_id: i32,
pub community_id: i32,
pub removed: bool,
pub locked: bool,
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pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
pub nsfw: bool,
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pub stickied: bool,
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}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "post"]
pub struct PostForm {
pub name: String,
pub url: Option<String>,
pub body: Option<String>,
pub creator_id: i32,
pub community_id: i32,
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pub removed: Option<bool>,
pub locked: Option<bool>,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: Option<bool>,
pub nsfw: bool,
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pub stickied: Option<bool>,
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}
impl Crud<PostForm> for Post {
fn read(conn: &PgConnection, post_id: i32) -> Result<Self, Error> {
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use crate::schema::post::dsl::*;
post.find(post_id).first::<Self>(conn)
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}
fn delete(conn: &PgConnection, post_id: i32) -> Result<usize, Error> {
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use crate::schema::post::dsl::*;
diesel::delete(post.find(post_id)).execute(conn)
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}
fn create(conn: &PgConnection, new_post: &PostForm) -> Result<Self, Error> {
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use crate::schema::post::dsl::*;
insert_into(post).values(new_post).get_result::<Self>(conn)
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}
fn update(conn: &PgConnection, post_id: i32, new_post: &PostForm) -> Result<Self, Error> {
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use crate::schema::post::dsl::*;
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diesel::update(post.find(post_id))
.set(new_post)
.get_result::<Self>(conn)
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}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_like"]
pub struct PostLike {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub score: i16,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "post_like"]
pub struct PostLikeForm {
pub post_id: i32,
pub user_id: i32,
pub score: i16,
}
impl Likeable<PostLikeForm> for PostLike {
fn read(conn: &PgConnection, post_id_from: i32) -> Result<Vec<Self>, Error> {
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use crate::schema::post_like::dsl::*;
post_like
.filter(post_id.eq(post_id_from))
.load::<Self>(conn)
}
fn like(conn: &PgConnection, post_like_form: &PostLikeForm) -> Result<Self, Error> {
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use crate::schema::post_like::dsl::*;
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insert_into(post_like)
.values(post_like_form)
.get_result::<Self>(conn)
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}
fn remove(conn: &PgConnection, post_like_form: &PostLikeForm) -> Result<usize, Error> {
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use crate::schema::post_like::dsl::*;
diesel::delete(
post_like
.filter(post_id.eq(post_like_form.post_id))
.filter(user_id.eq(post_like_form.user_id)),
)
.execute(conn)
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}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_saved"]
pub struct PostSaved {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "post_saved"]
pub struct PostSavedForm {
pub post_id: i32,
pub user_id: i32,
}
impl Saveable<PostSavedForm> for PostSaved {
fn save(conn: &PgConnection, post_saved_form: &PostSavedForm) -> Result<Self, Error> {
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use crate::schema::post_saved::dsl::*;
insert_into(post_saved)
.values(post_saved_form)
.get_result::<Self>(conn)
}
fn unsave(conn: &PgConnection, post_saved_form: &PostSavedForm) -> Result<usize, Error> {
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use crate::schema::post_saved::dsl::*;
diesel::delete(
post_saved
.filter(post_id.eq(post_saved_form.post_id))
.filter(user_id.eq(post_saved_form.user_id)),
)
.execute(conn)
}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_read"]
pub struct PostRead {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "post_read"]
pub struct PostReadForm {
pub post_id: i32,
pub user_id: i32,
}
impl Readable<PostReadForm> for PostRead {
fn mark_as_read(conn: &PgConnection, post_read_form: &PostReadForm) -> Result<Self, Error> {
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use crate::schema::post_read::dsl::*;
insert_into(post_read)
.values(post_read_form)
.get_result::<Self>(conn)
}
fn mark_as_unread(conn: &PgConnection, post_read_form: &PostReadForm) -> Result<usize, Error> {
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use crate::schema::post_read::dsl::*;
diesel::delete(
post_read
.filter(post_id.eq(post_read_form.post_id))
.filter(user_id.eq(post_read_form.user_id)),
)
.execute(conn)
}
}
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#[cfg(test)]
mod tests {
use super::super::community::*;
use super::super::user::*;
use super::*;
#[test]
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fn test_crud() {
let conn = establish_connection();
let new_user = UserForm {
name: "jim".into(),
fedi_name: "rrf".into(),
preferred_username: None,
password_encrypted: "nope".into(),
email: None,
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admin: false,
banned: false,
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updated: None,
show_nsfw: false,
theme: "darkly".into(),
default_sort_type: SortType::Hot as i16,
default_listing_type: ListingType::Subscribed as i16,
};
let inserted_user = User_::create(&conn, &new_user).unwrap();
let new_community = CommunityForm {
name: "test community_3".to_string(),
title: "nada".to_owned(),
description: None,
category_id: 1,
creator_id: inserted_user.id,
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removed: None,
deleted: None,
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updated: None,
nsfw: false,
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
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let new_post = PostForm {
name: "A test post".into(),
url: None,
body: None,
creator_id: inserted_user.id,
community_id: inserted_community.id,
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removed: None,
deleted: None,
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locked: None,
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stickied: None,
nsfw: false,
updated: None,
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};
let inserted_post = Post::create(&conn, &new_post).unwrap();
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let expected_post = Post {
id: inserted_post.id,
name: "A test post".into(),
url: None,
body: None,
creator_id: inserted_user.id,
community_id: inserted_community.id,
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published: inserted_post.published,
removed: false,
locked: false,
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stickied: false,
nsfw: false,
deleted: false,
updated: None,
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};
// Post Like
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let post_like_form = PostLikeForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1,
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};
let inserted_post_like = PostLike::like(&conn, &post_like_form).unwrap();
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let expected_post_like = PostLike {
id: inserted_post_like.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
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published: inserted_post_like.published,
score: 1,
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};
// Post Save
let post_saved_form = PostSavedForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
};
let inserted_post_saved = PostSaved::save(&conn, &post_saved_form).unwrap();
let expected_post_saved = PostSaved {
id: inserted_post_saved.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
published: inserted_post_saved.published,
};
// Post Read
let post_read_form = PostReadForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
};
let inserted_post_read = PostRead::mark_as_read(&conn, &post_read_form).unwrap();
let expected_post_read = PostRead {
id: inserted_post_read.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
published: inserted_post_read.published,
};
let read_post = Post::read(&conn, inserted_post.id).unwrap();
let updated_post = Post::update(&conn, inserted_post.id, &new_post).unwrap();
let like_removed = PostLike::remove(&conn, &post_like_form).unwrap();
let saved_removed = PostSaved::unsave(&conn, &post_saved_form).unwrap();
let read_removed = PostRead::mark_as_unread(&conn, &post_read_form).unwrap();
let num_deleted = Post::delete(&conn, inserted_post.id).unwrap();
Community::delete(&conn, inserted_community.id).unwrap();
User_::delete(&conn, inserted_user.id).unwrap();
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assert_eq!(expected_post, read_post);
assert_eq!(expected_post, inserted_post);
assert_eq!(expected_post, updated_post);
assert_eq!(expected_post_like, inserted_post_like);
assert_eq!(expected_post_saved, inserted_post_saved);
assert_eq!(expected_post_read, inserted_post_read);
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assert_eq!(1, like_removed);
assert_eq!(1, saved_removed);
assert_eq!(1, read_removed);
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assert_eq!(1, num_deleted);
}
}