Wikipedia:Database reports/Uncategorized categories/Configuration

This report is updated every 7 days.

Source code

/*
Copyright 2008 bjweeks, MZMcBride
Copyright 2021 Kunal Mehta <legoktm@debian.org>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

use anyhow::Result;
use dbreps2::{str_vec, Frequency, Report};
use mysql_async::prelude::*;
use mysql_async::Conn;

pub struct Row {
    page_title: String,
    page_len: u32,
    cat_pages: u32,
    rev_timestamp: String,
    actor_name: String,
}

pub struct UncatCats {}

impl Report<Row> for UncatCats {
    fn title(&self) -> &'static str {
        "Uncategorized categories"
    }

    fn frequency(&self) -> Frequency {
        Frequency::Weekly
    }

    fn query(&self) -> &'static str {
        r#"
/* uncatcats.rs SLOW_OK */
SELECT
  page_title,
  page_len,
  cat_pages,
  rev_timestamp,
  actor_name
FROM
  revision
  JOIN actor ON rev_actor = actor_id
  JOIN (
    SELECT
      page_id,
      page_title,
      page_len,
      cat_pages
    FROM
      category
      RIGHT JOIN page ON cat_title = page_title
      LEFT JOIN categorylinks ON page_id = cl_from
    WHERE
      cl_from IS NULL
      AND page_namespace = 14
      AND page_is_redirect = 0
  ) AS pagetmp ON rev_page = pagetmp.page_id
  AND rev_timestamp = (
    SELECT
      MAX(rev_timestamp)
    FROM
      revision AS last
    WHERE
      last.rev_page = pagetmp.page_id
  );
"#
    }

    async fn run_query(&self, conn: &mut Conn) -> Result<Vec<Row>> {
        let rows = conn
            .query_map(
                self.query(),
                |(
                    page_title,
                    page_len,
                    cat_pages,
                    rev_timestamp,
                    actor_name,
                )| Row {
                    page_title,
                    page_len,
                    cat_pages,
                    rev_timestamp,
                    actor_name,
                },
            )
            .await?;
        Ok(rows)
    }

    fn headings(&self) -> Vec<&'static str> {
        vec!["Category", "Length", "Members", "Last edit", "Last user"]
    }

    fn format_row(&self, row: &Row) -> Vec<String> {
        str_vec![
            format!("{{{{clh|1={}}}}}", &row.page_title),
            row.page_len,
            row.cat_pages,
            row.rev_timestamp,
            row.actor_name
        ]
    }

    fn code(&self) -> &'static str {
        include_str!("uncatcats.rs")
    }
}