English Wikipedia @ Freddythechick:Database reports/Templates containing links to disambiguation pages/Configuration

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Source code

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 {

   template_title: String,
   disambiguation_title: String,
   transclusions_count: u64,

}

pub struct TemplateDisambigs {}

impl Report<Row> for TemplateDisambigs {

   fn title(&self) -> &'static str {
       "Templates containing links to disambiguation pages"
   }

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

   fn query(&self) -> &'static str {
       r#"

/* templatedisambigs.rs SLOW_OK */ SELECT

 pltmp.page_title AS template_title,
 pltmp.lt_title AS disambiguation_title,
 (
   SELECT
     COUNT(*)
   FROM
     templatelinks
   JOIN linktarget ON tl_target_id = lt_id
   WHERE
     lt_namespace = 10
     AND lt_title = pltmp.page_title
 ) AS transclusions_count

FROM

 (
   SELECT
     page_namespace,
     page_title,
     lt_namespace,
     lt_title
   FROM
     page
     JOIN pagelinks ON pl_from = page_id
     JOIN linktarget ON pl_target_id = lt_id
   WHERE
     page_namespace = 10
     AND lt_namespace = 0
   LIMIT
     1000000
 ) AS pltmp
 JOIN page AS pg2
 /* removes red links */
 ON pltmp.lt_namespace = pg2.page_namespace
 AND pltmp.lt_title = pg2.page_title

WHERE

 EXISTS (
   SELECT
     1
   FROM
     categorylinks
   WHERE
     pg2.page_id = cl_from
     AND cl_to = 'All_disambiguation_pages'
 )

ORDER BY

 transclusions_count DESC;"#
   }

   async fn run_query(&self, conn: &mut Conn) -> Result<Vec<Row>> {
       let rows = conn
           .query_map(
               self.query(),
               |(
                   template_title,
                   disambiguation_title,
                   transclusions_count,
               )| Row {
                   template_title,
                   disambiguation_title,
                   transclusions_count,
               },
           )
           .await?;
       Ok(rows)
   }

   fn intro(&self) -> &'static str {
       "Templates containing links to disambiguation pages (limited results)"
   }

   fn headings(&self) -> Vec<&'static str> {
       vec!["Template", "Disambiguation page", "Transclusions"]
   }

   fn format_row(&self, row: &Row) -> Vec<String> {
       str_vec![
           format!("[[Template:{}|]]", row.template_title),
           format!("[[{}]]", row.disambiguation_title),
           row.transclusions_count
       ]
   }

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

} </syntaxhighlight>