backend/src/db.rs

   1 use std::path::Path;
   2 use std::fs;
   3
   4 //use rusqlite::types::ToSql;
   5 //use rusqlite::{Connection, Result, NO_PARAMS};
   6
   7 const CURRENT_DB_VERSION: u32 = 1;
   8
   9 struct Connection {
  10     pub sqlite_con : rusqlite::Connection
  11 }
  12
  13 impl Connection {
  14     fn new() -> Connection {
  15
  16         // TODO: use a constant in consts module.
  17         let data_dir = Path::new("data");
  18
  19         if !data_dir.exists() {
  20             fs::DirBuilder::new().create(data_dir).unwrap();
  21         }
  22
  23         Connection { sqlite_con : rusqlite::Connection::open(data_dir.join("recipes.sqlite")).unwrap() }
  24     }
  25 }
  26
  27 pub fn create_or_update() {
  28     let connection = Connection::new();
  29
  30     // let mut stmt = connection.sqlite_con.prepare("SELECT * FROM versions ORDER BY date").unwrap();
  31
  32     //let mut stmt = connection.sqlite_con..prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='versions'").unwrap();
  33     connection.sqlite_con.query_row(
  34         "SELECT name FROM sqlite_master WHERE type='table' AND name='versions'",
  35         rusqlite::NO_PARAMS,
  36         |row| Ok(dbg!("test"))
  37     )
  38     .unwrap();
  39 }