From 56c4f060543542692accdbfab7cb1fff82a7f40f Mon Sep 17 00:00:00 2001
From: alex <alex@alexloehr.net>
Date: Sun, 22 Jun 2025 16:47:10 +0000
Subject: [PATCH] GS-2156

---
 lib/db.js |  158 ++++++++++++++++++++++++++++++++++++++++------------
 1 files changed, 120 insertions(+), 38 deletions(-)

diff --git a/lib/db.js b/lib/db.js
index a4708f5..72d6bc0 100644
--- a/lib/db.js
+++ b/lib/db.js
@@ -1,5 +1,6 @@
 const mysql = require("mysql2/promise")
 
+const searchLib = require("./search")
 const {host, port, user, database, password} = require("./../settings").db
 
 /////////////////////////////////////////////////////////////////////////
@@ -33,75 +34,110 @@
    getKurse,
    getKurs,
    getKursItems,
+   getKursItems2,
    // getKursByObjId,
    // getKursByRefId,
    getKursTeilnehmer,
    getKursTeilnehmerCount,
 
+   getUdf,
 }
 
 /////////////////////////////////////////////////////////////////////////
 
-async function getUsers (offset = 0, limit = 10) {
-   limit = Number(limit) || 10
-   offset = Number(offset) || 0
+async function getUserSearchQuery (offset, limit, search) {
    const sel = `usr_id, login, firstname, lastname, gender, email, institution, street, city, zipcode, country, department, active`
-   // TODO user defined fields
-   // TODO check args for SQL Injection
-
-   const pool = await poolP
-   const [results, fields] = await pool.query(
-      `SELECT ${sel}
-       FROM ${database}.usr_data AS ud
-       WHERE login REGEXP '^[0-9]+$'
-       LIMIT ${limit}
-       OFFSET ${offset}
+   if (!search || search === '') {
+      return `SELECT ${sel}
+              FROM ${database}.usr_data AS ud
+              WHERE login REGEXP '^[0-9]+$'
+              LIMIT ${limit}
+              OFFSET ${offset}
       `
-   )
-   const count = await getUserCount()
-   return {
-      total: count,
-      offset, limit,
-      data: results,
+   }
+   else {
+      const ids = await searchLib.search(search)
+      if (!ids.length) {
+         throw "nothing found"
+         return await getUserSearchQuery(offset, limit)
+      } // nothing found
+      return `SELECT ${sel}
+              FROM ${database}.usr_data AS ud
+              WHERE login REGEXP '^[0-9]+$'
+              AND usr_id IN (${ids.join(",")})
+                  LIMIT ${limit}
+              OFFSET ${offset}
+      `
    }
 }
 
-async function getUserCount () {
+async function getUsers (offset = 0, limit = 10, search = null) {
+   console.log("++++++++++ get users", offset, limit, search)
+   limit = Number(limit) || 10
+   offset = Number(offset) || 0
+   // TODO check args for SQL Injection
+
    const pool = await poolP
-   const [results, fields] = await pool.query(
-      `SELECT COUNT(*)
-       FROM ${database}.usr_data AS ud
-       WHERE login REGEXP '^[0-9]+$'`
-   )
-   return results[0]["COUNT(*)"]
+
+   try {
+      let userSearchQuery = await getUserSearchQuery(offset, limit, search)
+      // console.log(userSearchQuery)
+      const [results, fields] = await pool.query(userSearchQuery)
+      const count = await getUserCount(offset, limit, search)
+      return {
+         total: count,
+         offset, limit,
+         data: results,
+      }
+   } catch (ex) {
+      return {
+         total: 0,
+         offset: 0,
+         limit: 0,
+         data: [],
+      }
+   }
+}
+
+async function getUserCount (offset, limit, search) {
+   const pool = await poolP
+   // const q = getUserSearchQuery(offset, limit, search)
+   const q = await getUserSearchQuery(0, 1000000, search) // hier darf kein Limit sein, offset=0
+   const q2 = `SELECT COUNT(*) AS count
+               FROM (${q}) AS X`
+   const [results, fields] = await pool.query(q2)
+   return results[0].count
+
+   // const [results, fields] = await pool.query(
+   //    `SELECT COUNT(*)
+   //     FROM ${database}.usr_data AS ud
+   //     WHERE login REGEXP '^[0-9]+$'`
+   // )
+   // return results[0]["COUNT(*)"]
 }
 
 async function getUserByLogin (login) {
    const sel = `usr_id, login, firstname, lastname, gender, email, institution, street, city, zipcode, country, department, active`
-   // TODO user defined fields
    // TODO check args for SQL Injection
 
    const pool = await poolP
    const [results, fields] = await pool.query(
       `SELECT ${sel}
        FROM ${database}.usr_data AS ud
-       WHERE login = '${login}'
-         AND login REGEXP '^[0-9]+$'`
+       WHERE login = '${login}'`
    )
    return joinUDF(results[0])
 }
 
 async function getUserByUserId (userId) {
    const sel = `usr_id, login, firstname, lastname, gender, email, institution, street, city, zipcode, country, department, active`
-   // TODO user defined fields
    // TODO check args for SQL Injection
 
    const pool = await poolP
    const [results, fields] = await pool.query(
       `SELECT ${sel}
        FROM ${database}.usr_data AS ud
-       WHERE usr_id = '${userId}'
-         AND login REGEXP '^[0-9]+$'`
+       WHERE usr_id = '${userId}'`
    )
    return joinUDF(results[0])
 }
@@ -188,7 +224,7 @@
 
 async function getKurs (ref_id) {
    const pool = await poolP
-   const q = `SELECT or2.ref_id, or2.obj_id, od.title, od.description, od.type
+   const q = `SELECT or2.ref_id, or2.obj_id, od.title, od.description, od.type, od.create_date
               FROM ${database}.object_reference or2
                        INNER JOIN ${database}.object_data od ON od.obj_id = or2.obj_id
               WHERE or2.ref_id = '${ref_id}'
@@ -212,6 +248,41 @@
               WHERE or2.ref_id = ${ref_id}
                  OR parent_id = ${ref_id}
                   AND or2.deleted is NULL
+   `
+   const [results] = await pool.query(q)
+   return results
+}
+
+async function getKursItems2 (ref_id) {
+   const pool = await poolP
+   const q = `
+       WITH RECURSIVE tree (parent_id, obj_id, ref_id, title, type) AS
+                          (SELECT ci.parent_id,
+                                  or2.obj_id,
+                                  ci.obj_id as ref_id,
+                                  od.title,
+                                  od.type
+                           FROM ${database}.crs_items ci
+                                    INNER JOIN ${database}.object_reference or2 ON or2.ref_id = ci.obj_id
+                                    INNER JOIN ${database}.object_data od ON od.obj_id = or2.obj_id
+                           WHERE ci.obj_id = ${ref_id} -- Kurs ref_id
+                             AND or2.deleted is NULL
+
+                           UNION ALL
+
+                           SELECT child.parent_id,
+                                  or2.obj_id,
+                                  child.obj_id as ref_id,
+                                  od.title,
+                                  od.type
+                           FROM ${database}.crs_items child
+                                    INNER JOIN ${database}.object_reference or2 ON or2.ref_id = child.obj_id
+                                    INNER JOIN ${database}.object_data od ON od.obj_id = or2.obj_id
+                                    JOIN tree ON child.parent_id = tree.ref_id
+                           WHERE or2.deleted is NULL)
+       SELECT *
+       FROM tree
+       ORDER BY tree.ref_id
    `
    const [results] = await pool.query(q)
    return results
@@ -266,15 +337,26 @@
 
 async function getUserTeilnahmen (usr_id) {
    const pool = await poolP
-   const q = `SELECT om.obj_id, om.usr_id, od.title, ulm.status, om.passed, ulm.status_changed
-              FROM ilias_globusfachtest.obj_members om
-                       INNER JOIN ilias_globusfachtest.usr_data ud ON ud.usr_id = om.usr_id
-                       INNER JOIN ilias_globusfachtest.object_data od ON od.obj_id = om.obj_id
-                       LEFT JOIN ilias_globusfachtest.ut_lp_marks ulm
+   const q = `SELECT om.obj_id, or2.ref_id, om.usr_id, od.title, ulm.status, om.passed, ulm.status_changed
+              FROM ${database}.obj_members om
+                       INNER JOIN ${database}.object_reference or2 ON or2.obj_id = om.obj_id
+                       INNER JOIN ${database}.usr_data ud ON ud.usr_id = om.usr_id
+                       INNER JOIN ${database}.object_data od ON od.obj_id = om.obj_id
+                       LEFT JOIN ${database}.ut_lp_marks ulm
                                  ON ulm.usr_id = om.usr_id AND ulm.obj_id = om.obj_id
               WHERE om.usr_id = ${usr_id}
                 AND om.member = 1
    `
+   console.log(q)
+   const [results] = await pool.query(q)
+   return results
+}
+
+/////// UDF ////////////////////////////////////////////////////////////////
+
+async function getUdf() {
+   const pool = await poolP
+   const q = `SELECT field_id, field_name, field_type from ${database}.udf_definition;`
    const [results] = await pool.query(q)
    return results
 }

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