426 lines
14 KiB
Python
426 lines
14 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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import inspect
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import logging
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import pdb
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import time
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import psycopg2
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import sqlalchemy
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from sqlalchemy import func
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from flask import current_app
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from app import db
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from app.auth.models import User, get_super_admin
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import app
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from app import clear_scodoc_cache
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from app import models
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from app.scodoc import notesdb as ndb
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# Attributs modifiés entre les bases ScoDoc 7 et 8+:
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# (None indique que l'attribut est supprimé, "nouveau_nom" qu'il change de nom)
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ATTRIBUTES_MAPPING = {
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"admissions": {
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"debouche": None,
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},
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"adresse": {
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"entreprise_id": None,
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},
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"etud_annotations": {
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"zope_authenticated_user": "author",
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"zope_remote_addr": None,
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},
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"identite": {
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"foto": None,
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},
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"notes_formsemestre": {
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"etape_apo2": None, # => suppressed
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"etape_apo3": None,
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"etape_apo4": None,
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# préférences, plus dans formsemestre:
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# (inutilisés depuis ScoDoc 6 environ)
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"bul_show_decision": None,
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"bul_show_uevalid": None,
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"nomgroupetd": None,
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"nomgroupetp": None,
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"nomgroupeta": None,
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"gestion_absence": None,
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"bul_show_codemodules": None,
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"bul_show_rangs": None,
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"bul_show_ue_rangs": None,
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"bul_show_mod_rangs": None,
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},
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"partition": {
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"compute_ranks": None,
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},
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"notes_appreciations": {
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"zope_authenticated_user": "author",
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"zope_remote_addr": None,
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},
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"scolog": {
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"remote_addr": None,
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"remote_host": None,
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},
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}
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def setup_log(dept_acronym: str):
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"""log to console (stderr) and /opt/scodoc-data/log/migration78.log"""
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log_formatter = logging.Formatter(
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"%(asctime)s %(levelname)s (" + dept_acronym + ") %(message)s"
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)
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# Log to file:
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logger = logging.getLogger()
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file_handler = logging.FileHandler("/opt/scodoc-data/log/migration78.log")
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file_handler.setFormatter(log_formatter)
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logger.addHandler(file_handler)
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# Log to stderr:
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console_handler = logging.StreamHandler() # stderr
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console_handler.setFormatter(log_formatter)
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logger.addHandler(console_handler)
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# Caution:
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logger.setLevel(logging.DEBUG)
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def import_scodoc7_dept(dept_id: str, dept_db_uri=None):
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"""Importe un département ScoDoc7 dans ScoDoc >= 8.1
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(base de donnée unique)
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Args:
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dept_id: acronyme du département ("RT")
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dept_db_uri: URI de la base ScoDoc7eg "postgresql:///SCORT"
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si None, utilise postgresql:///SCO{dept_id}
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"""
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dept = models.Departement.query.filter_by(acronym=dept_id).first()
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if dept:
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raise ValueError(f"le département {dept_id} existe déjà !")
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if dept_db_uri is None:
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dept_db_uri = f"postgresql:///SCO{dept_id}"
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setup_log(dept_id)
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logging.info(f"connecting to database {dept_db_uri}")
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cnx = psycopg2.connect(dept_db_uri)
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cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
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# Create dept:
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dept = models.Departement(acronym=dept_id, description="migré de ScoDoc7")
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db.session.add(dept)
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db.session.commit()
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#
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id_from_scodoc7 = {} # { scodoc7id (str) : scodoc8 id (int)}
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# Utilisateur de rattachement par défaut:
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default_user = get_super_admin()
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#
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t0 = time.time()
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for (table, id_name) in SCO7_TABLES_ORDONNEES:
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logging.info(f"{dept.acronym}: converting {table}...")
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klass = get_class_for_table(table)
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t1 = time.time()
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n = convert_table(dept, cursor, id_from_scodoc7, klass, id_name, default_user)
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logging.info(f" inserted {n} objects in {time.time()-t1:3.2f}s.")
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logging.info(f"All table imported in {time.time()-t0:3.2f}s")
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logging.info(f"clearing app caches...")
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clear_scodoc_cache()
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logging.info(f"Done.")
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logging.warning(f"Un redémarrage du serveur postgresql est conseillé.")
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def get_class_for_table(table):
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"""Return ScoDoc orm class for the given SQL table: search in our models"""
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for name in dir(models):
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item = getattr(models, name)
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if inspect.isclass(item):
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if issubclass(item, db.Model):
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if item.__tablename__ == table:
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return item
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try: # pour les db.Table qui ne sont pas des classes (isclass est faux !)
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if item.name == table:
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return item
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except:
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pass
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raise ValueError(f"No model for table {table}")
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def get_boolean_columns(klass):
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"return list of names of boolean attributes in this model"
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boolean_columns = []
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column_names = sqlalchemy.inspect(klass).columns.keys()
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for column_name in column_names:
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column = getattr(klass, column_name)
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if isinstance(column.expression.type, sqlalchemy.sql.sqltypes.Boolean):
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boolean_columns.append(column_name)
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return boolean_columns
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def get_table_max_id(klass):
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"return max id in this Table (or -1 if no id)"
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if not id in sqlalchemy.inspect(klass).columns.keys():
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return -1
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sql_table = str(klass.description)
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cnx = db.engine.connect()
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r = cnx.execute("SELECT max(id) FROM " + sql_table)
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r.fetchone()
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if r:
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return r[0]
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else: # empty table
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return 0
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def update_table_sequence(table_name):
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"""After filling the table, we need to update the serial
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so that the next insertions will use new ids
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"""
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with db.engine.connect() as cnx:
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cnx.execute(
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f"""SELECT
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setval('{table_name}_id_seq',
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(SELECT MAX(id) FROM {table_name}))
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"""
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)
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def convert_table(
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dept, cursor, id_from_scodoc7: dict, klass=None, id_name=None, default_user=None
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):
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"converti les élements d'une table scodoc7"
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# Est-ce une Table ou un Model dans l'ORM ?
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if isinstance(klass, sqlalchemy.sql.schema.Table):
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is_table = True
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current_id = get_table_max_id(klass)
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has_id = current_id != -1
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table_name = str(klass.description)
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boolean_columns = []
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else:
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is_table = False
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has_id = True
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table_name = klass.__tablename__
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# Colonnes booléennes (valeurs à convertir depuis int)
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boolean_columns = get_boolean_columns(klass)
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# Part de l'id le plus haut actuellement présent
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# (évidemment, nous sommes les seuls connectés à la base destination !)
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current_id = db.session.query(func.max(klass.id)).first()
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if (current_id is None) or (current_id[0] is None):
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current_id = 0
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else:
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current_id = current_id[0]
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cnx = db.engine.connect()
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# mapping: login (scodoc7) : user id (scodoc8)
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login2id = {u.user_name: u.id for u in User.query}
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# les tables ont le même nom dans les deux versions de ScoDoc:
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cursor.execute(f"SELECT * FROM {table_name}")
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objects = cursor.dictfetchall()
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n = 0
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for obj in objects:
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current_id += 1
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convert_object(
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current_id,
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dept,
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obj,
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has_id,
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id_from_scodoc7,
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klass,
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is_table,
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id_name,
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boolean_columns,
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login2id,
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default_user,
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cnx,
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)
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# commit progressif pour ne pas consommer trop de mémoire:
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n += 1
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if (not n % 1000) and cnx:
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db.session.commit()
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if cnx:
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cnx.close()
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db.session.commit() # écrit la table
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if has_id:
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update_table_sequence(table_name)
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return len(objects)
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def convert_object(
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new_id,
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dept,
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obj: dict,
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has_id: bool = True,
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id_from_scodoc7: dict = None,
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klass=None,
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is_table: bool = False,
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id_name=None,
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boolean_columns=None,
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login2id=None,
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default_user=None,
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cnx=None, # cnx à la base destination
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):
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# Supprime l'id ScoDoc7 (eg "formsemestre_id") qui deviendra "id"
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if id_name:
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old_id = obj[id_name]
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del obj[id_name]
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else:
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old_id = None # tables ScoDoc7 sans id
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if is_table:
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table_name = str(klass.description)
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else:
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table_name = klass.__tablename__
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# Les champs contant des id utilisateurs:
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# chaine login en ScoDoc7, uid numérique en ScoDoc 8+
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USER_REFS = {"responsable_id", "ens_id", "uid"}
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if not is_table:
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# Supprime les attributs obsoletes (très anciennes versions de ScoDoc):
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attributs = ATTRIBUTES_MAPPING.get(table_name, {})
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# renomme ou supprime les attributs
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for k in attributs.keys() & obj.keys():
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v = attributs[k]
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if v is not None:
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obj[v] = obj[k]
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del obj[k]
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# map les ids (foreign keys)
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for k in obj:
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if (k.endswith("id") or k == "object") and k not in USER_REFS | {
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"semestre_id",
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"sem_id",
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}:
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old_ref = obj[k]
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if old_ref is not None:
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if isinstance(old_ref, str):
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old_ref = old_ref.strip()
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elif k == "entreprise_id": # id numérique spécial
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old_ref = f"entreprises.{old_ref}"
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elif k == "entreprise_corresp_id":
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old_ref = f"entreprise_correspondant.{old_ref}"
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if old_ref == "NULL" or not old_ref: # buggy old entries
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new_ref = None
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elif old_ref in id_from_scodoc7:
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new_ref = id_from_scodoc7[old_ref]
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elif (not is_table) and table_name in {
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"scolog",
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"etud_annotations",
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"notes_notes_log",
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"scolar_news",
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"absences",
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"absences_notifications",
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}:
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# tables avec "fausses" clés
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# (l'object référencé a pu disparaitre)
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new_ref = None
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else:
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raise ValueError(f"no new id for {table_name}.{k}='{obj[k]}' !")
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obj[k] = new_ref
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# Remape les utilisateur: user.id
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# S'il n'existe pas, rattache à l'admin
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for k in USER_REFS & obj.keys():
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login_scodoc7 = obj[k]
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uid = login2id.get(login_scodoc7)
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if not uid:
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uid = default_user.id
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logging.warning(
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f"non existent user: {login_scodoc7}: giving {table_name}({old_id}) to admin"
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)
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# raise ValueError(f"non existent user: {login_scodoc7}")
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obj[k] = uid
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# Converti les booléens
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for k in boolean_columns:
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obj[k] = bool(obj[k])
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# Ajoute le département si besoin:
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if hasattr(klass, "dept_id"):
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obj["dept_id"] = dept.id
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# Fixe l'id (ainsi nous évitons d'avoir à commit() après chaque entrée)
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if has_id:
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obj["id"] = new_id
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if is_table:
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statement = sqlalchemy.insert(klass).values(**obj)
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_ = cnx.execute(statement)
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else:
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new_obj = klass(**obj) # ORM object
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db.session.add(new_obj)
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# insert_object(cnx, table_name, obj)
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# Stocke l'id pour les références (foreign keys):
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if id_name and has_id:
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if isinstance(old_id, int):
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# les id int étaient utilisés pour les "entreprises"
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old_id = table_name + "." + str(old_id)
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id_from_scodoc7[old_id] = new_id
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def insert_object(cnx, table_name: str, vals: dict) -> str:
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"""insert tuple in db
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version manuelle => ne semble pas plus rapide
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"""
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cols = list(vals.keys())
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colnames = ",".join(cols)
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fmt = ",".join(["%%(%s)s" % col for col in cols])
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cnx.execute("insert into %s (%s) values (%s)" % (table_name, colnames, fmt), vals)
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# tables ordonnées topologiquement pour les clés étrangères:
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# g = nx.read_adjlist("misc/model-scodoc7.csv", create_using=nx.DiGraph,delimiter=";")
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# L = list(reversed(list(nx.topological_sort(g))))
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SCO7_TABLES_ORDONNEES = [
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# (table SQL, nom de l'id scodoc7)
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("notes_formations", "formation_id"),
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("notes_ue", "ue_id"),
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("notes_matieres", "matiere_id"),
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("notes_formsemestre", "formsemestre_id"),
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("notes_modules", "module_id"),
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("notes_moduleimpl", "moduleimpl_id"),
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(
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"notes_modules_enseignants",
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"modules_enseignants_id",
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), # (relation) avait un id modules_enseignants_id
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("partition", "partition_id"),
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("identite", "etudid"),
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("entreprises", "entreprise_id"),
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("notes_evaluation", "evaluation_id"),
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("group_descr", "group_id"),
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("group_membership", "group_membership_id"), # (relation, qui avait un id)
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("notes_semset", "semset_id"),
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("notes_tags", "tag_id"),
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("itemsuivi", "itemsuivi_id"),
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("itemsuivi_tags", "tag_id"),
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("adresse", "adresse_id"),
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("admissions", "adm_id"),
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("absences", ""),
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("scolar_news", "news_id"),
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("scolog", ""),
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("etud_annotations", "id"),
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("billet_absence", "billet_id"),
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("entreprise_correspondant", "entreprise_corresp_id"),
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("entreprise_contact", "entreprise_contact_id"),
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("absences_notifications", ""),
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# ("notes_form_modalites", "form_modalite_id"), : déjà initialisées
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("notes_appreciations", "id"),
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("scolar_autorisation_inscription", "autorisation_inscription_id"),
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("scolar_formsemestre_validation", "formsemestre_validation_id"),
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("scolar_events", "event_id"),
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("notes_notes_log", "id"),
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("notes_notes", ""),
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("notes_moduleimpl_inscription", "moduleimpl_inscription_id"),
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("notes_formsemestre_inscription", "formsemestre_inscription_id"),
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("notes_formsemestre_custommenu", "custommenu_id"),
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(
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"notes_formsemestre_ue_computation_expr",
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"notes_formsemestre_ue_computation_expr_id",
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),
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("notes_formsemestre_uecoef", "formsemestre_uecoef_id"),
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("notes_semset_formsemestre", ""), # (relation)
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("notes_formsemestre_etapes", ""),
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("notes_formsemestre_responsables", ""), # (relation)
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("notes_modules_tags", ""),
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("itemsuivi_tags_assoc", ""), # (relation)
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("sco_prefs", "pref_id"),
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]
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"""
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from tools.import_scodoc7_dept import *
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import_scodoc7_dept( "RT", "SCORT" )
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"""
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