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extern crate clap;
extern crate serde;
extern crate serde_json;
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate log;
extern crate env_logger;
extern crate rusqlite;
extern crate regex;
use std::fs::File;
use std::io::Read;
use clap::{App, Arg};
use std::collections::HashMap;
use regex::Regex;
#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "camelCase")]
struct Key {
id: String,
}
#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "camelCase")]
struct Quote {
timestamp: String,
author: String,
ip: String,
content: String,
quote_date: String,
#[serde(rename = "__key__")]
key: Key,
#[serde(default = "Vec::new")]
votes: Vec<Vote>,
}
#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "camelCase")]
struct Vote {
ip: String,
rating: String,
quote_id: String,
timestamp: String,
}
fn import<'a, I: Iterator<Item = &'a Quote>>(conn: &rusqlite::Connection, quotes: I) {
let r = Regex::new(r".*(\d{4})-(\d{2})-(\d{2}).*").unwrap();
for quote in quotes {
let quote_date = r.replace("e.quote_date, "$1-$2-$3").to_string();
info!("Inserting: {:?}, quote_date({})", quote, quote_date);
conn.execute("INSERT INTO quotes (approved, quote_date, author, content, ip, timestamp) VALUES (1, ?1, ?2, ?3, ?4, ?5)",
&["e_date, "e.author, "e.content, "e.ip, "e.timestamp]).unwrap();
let quote_id = conn.last_insert_rowid();
let mut user_id = 1;
for vote in quote.votes.iter() {
info!("quote({}): Add vote {:?}", quote_id, vote);
let score: i32 = vote.rating.parse().unwrap();
conn.execute(r"INSERT INTO votes (user_id, quote_id, score, ip, timestamp) VALUES (?1, ?2, ?3, ?4, ?5)",
&[&user_id, "e_id, &score, &vote.ip, &vote.timestamp]).unwrap();
user_id += 1;
}
}
}
fn main() {
env_logger::init().unwrap();
let matches = App::new("migration")
.arg(Arg::with_name("db").required(true))
.arg(Arg::with_name("quotes_json").required(true))
.arg(Arg::with_name("votes_json").required(true))
.get_matches();
let mut quotes = "".to_string();
File::open(matches.value_of("quotes_json").unwrap())
.unwrap()
.read_to_string(&mut quotes)
.unwrap();
fn parse_all<'a, T: serde::Deserialize<'a>>(s: &'a str) -> Vec<T> {
s.lines()
.filter(|s| !s.is_empty())
.map(|s| {
debug!("deserializing this: {:?}", s);
serde_json::from_str(s).unwrap()
})
.collect::<Vec<T>>()
}
let quotes: Vec<Quote> = parse_all("es);
let mut quotes: HashMap<String, Quote> =
quotes.into_iter().map(|q| (q.key.id.clone(), q)).collect();
let mut votes = "".to_string();
File::open(matches.value_of("votes_json").unwrap())
.unwrap()
.read_to_string(&mut votes)
.unwrap();
let votes: Vec<Vote> = parse_all(&votes);
let mut v1 = 0;
for vote in votes.into_iter() {
if let Some(quote) = quotes.get_mut(&vote.quote_id) {
quote.votes.push(vote);
}
v1 += 1;
}
let mut v2 = 0;
for (_, quote) in quotes.iter() {
println!(
"{}/{}: {} votes",
quote.key.id,
quote.quote_date,
quote.votes.len()
);
v2 += quote.votes.len();
}
println!("votes before {} after {}", v1, v2);
let mut quotes: Vec<Quote> = quotes.into_iter().map(|(_, v)| v).collect();
quotes.sort_by_key(|q| {
(q.quote_date.clone(), q.timestamp.clone(), q.key.id.clone())
});
let mut conn = rusqlite::Connection::open(matches.value_of("db").unwrap()).unwrap();
let tx = conn.transaction().unwrap();
import(&tx, quotes.iter());
tx.commit().unwrap();
}
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