Wikipedia:Database reports/Articles with the most redirects/Configuration
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Source code
[edit]use anyhow::Result;
use dbreps2::{dbr_link, str_vec, Frequency, Report};
use mysql_async::prelude::*;
use mysql_async::Conn;
pub struct Row {
rd_title: String,
count: u32,
}
pub struct ArticlesMostRedirects {}
impl Report<Row> for ArticlesMostRedirects {
fn title(&self) -> &'static str {
"Articles with the most redirects"
}
fn frequency(&self) -> Frequency {
Frequency::Monthly
}
fn query(&self) -> &'static str {
r#"
/* articlesmostredirects.rs SLOW_OK */
SELECT
rd_title,
COUNT(*)
FROM
page
JOIN
redirect
ON rd_from = page_id
WHERE
page_namespace = 0
AND rd_namespace = 0
GROUP BY rd_namespace, rd_title
ORDER BY COUNT(*) DESC
LIMIT 1500;
"#
}
async fn run_query(&self, conn: &mut Conn) -> Result<Vec<Row>> {
let rows = conn
.query_map(self.query(), |(rd_title, count)| Row {
rd_title,
count,
})
.await?;
Ok(rows)
}
fn intro(&self) -> &'static str {
"Articles with the most redirects \
(limited to the first 1500 entries)"
}
fn headings(&self) -> Vec<&'static str> {
vec!["Article", "Redirects count"]
}
fn format_row(&self, row: &Row) -> Vec<String> {
str_vec![dbr_link(&row.rd_title), row.count]
}
fn code(&self) -> &'static str {
include_str!("articlesmostredirects.rs")
}
}