English Wikipedia @ Freddythechick:Database reports/Empty categories/Configuration

This report is updated every day at 1:00 UTC.

Source code

<syntaxhighlight lang="rust"> /* Copyright 2008, 2013 bjweeks, MZMcBride, CBM, Tim Landscheidt 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 {

   category: String,
   length: u32,

}

pub struct EmptyCats {}

impl Report<Row> for EmptyCats {

   fn title(&self) -> &'static str {
       "Empty categories"
   }

   fn frequency(&self) -> Frequency {
       Frequency::DailyAt(1)
   }

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

/* emptycats.rs SLOW_OK */ SELECT

 page_title,
 page_len

FROM

 categorylinks
 RIGHT JOIN page ON cl_to = page_title

WHERE

 page_namespace = 14
 AND page_is_redirect = 0
 AND cl_to IS NULL
 AND NOT(
   CONVERT(page_title USING utf8) REGEXP '(-importance|-class|assess|_articles_missing_|_articles_in_need_of_|_articles_undergoing_|_articles_to_be_|_articles_not_yet_|_articles_with_|_articles_without_|_articles_needing_|Wikipedia_featured_topics)'
 )
 AND NOT EXISTS (
   SELECT
     1
   FROM
     categorylinks
   WHERE
     cl_from = page_id
     AND (
       cl_to = 'Wikipedia_soft_redirected_categories'
       OR cl_to = 'Disambiguation_categories'
       OR cl_to = 'Monthly_clean-up_category_counter'
       OR cl_to LIKE 'Empty_categories%'
     )
 )
 AND NOT EXISTS (
   SELECT
     1
   FROM
     templatelinks
   JOIN linktarget ON tl_target_id = lt_id
   WHERE
     tl_from = page_id
     AND lt_namespace = 10
     AND (
       lt_title = 'Empty_category'
       OR lt_title = 'Possibly_empty_category'
       OR lt_title = 'Monthly_clean-up_category'
       OR lt_title = 'Maintenance_category_autotag'
     )
 );

"#

   }

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

   fn intro(&self) -> &'static str {
       "Empty categories not in [[:Category:Wikipedia soft redirected \
       categories]], not in Category:Disambiguation categories, not \
       in Category:Monthly clean-up category counter, not tagged with \
       {{Maintenance category autotag}}, and not containing \"(-importance\
       |\\-class|assess|articles missing|articles in need of|articles \
       undergoing|articles to be|articles not yet|articles with|articles \
       without|articles needing|Wikipedia featured topics)\""
   }

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

   fn format_row(&self, row: &Row) -> Vec<String> {
       str_vec![format!("{1={}}", row.category), row.length]
   }

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

} </syntaxhighlight>