Add a model for likes
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commit
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-- This file should undo anything in `up.sql`
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DROP TABLE likes;
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-- Your SQL goes here
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CREATE TABLE likes (
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id SERIAL PRIMARY KEY,
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user_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
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post_id INTEGER REFERENCES posts(id) ON DELETE CASCADE NOT NULL,
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creation_date TIMESTAMP NOT NULL DEFAULT now()
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)
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use chrono;
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use diesel::{PgConnection, QueryDsl, RunQueryDsl, ExpressionMethods};
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use schema::likes;
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#[derive(Queryable)]
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pub struct Like {
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id: i32,
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user_id: i32,
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post_id: i32,
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creation_date: chrono::NaiveDateTime
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}
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#[derive(Insertable)]
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#[table_name = "likes"]
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pub struct NewLike {
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user_id: i32,
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post_id: i32
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}
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impl Like {
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pub fn get(conn: &PgConnection, id: i32) -> Option<Like> {
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likes::table.filter(likes::id.eq(id))
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.limit(1)
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.load::<Like>(conn)
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.expect("Error loading like by ID")
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.into_iter().nth(0)
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}
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}
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