dbmysql for webflask login

basic/compexec.py

@@ -143,8 +143,6 @@ class Testexecuter():
             self.m.logInfo("select db-content "+ self.name)
             dbi = basic.toolHandling.getDbTool(job, self)
             data = dbi.selectTables(subdir, job)
-            print("ppp")
-            #data = {}
             for t in data[subdir]:
                 data[B.DATA_NODE_TABLES] = {}
                 data[B.DATA_NODE_TABLES][t] = data[subdir][t]
@@ -255,7 +253,7 @@ class Testexecuter():
         :return:
         """
         if not step.fct in self.conf[B.DATA_NODE_STEPS]:
-            raise Exception(self.m.getMessageText(T.EXP_KEY_DOESNT_EXIST, [step.fct, self.name]))
+            raise Exception(self.m.getMessageText(job, T.EXP_KEY_DOESNT_EXIST, [step.fct, self.name]))
         if step.fct in self.conf[B.DATA_NODE_STEPS]:
             for stepconf in self.conf[B.DATA_NODE_STEPS][step.fct]:
                 if stepconf[B.SUBJECT_TOOL] == B.TOPIC_NODE_FILE:

basic/constants.py

@@ -126,7 +126,14 @@ ATTR_DB_SCHEMA = "schema"
 """ optional attribute for technical name of the schema  """
 ATTR_DB_TABNAME = "tabname"
 """ optional attribute in order to use a different technical name for the db-table """
-LIST_DB_ATTR = [ATTR_DB_PARTITION, ATTR_DB_DATABASE, ATTR_DB_SCHEMA, ATTR_DB_TABNAME, ATTR_ARTS_PRESTEP] + LIST_ARTS_ATTR
+ATTR_DB_USER = "user"
+""" optional attribute in order to use a different technical name for the db-table """
+ATTR_DB_PASSWD = "password"
+""" optional attribute in order to use a different technical name for the db-table """
+ATTR_DB_HOST = "hostname"
+""" optional attribute in order to use a different technical name for the db-table """
+LIST_DB_ATTR = [ATTR_DB_PARTITION, ATTR_DB_DATABASE, ATTR_DB_SCHEMA, ATTR_DB_TABNAME, ATTR_ARTS_PRESTEP,
+                ATTR_DB_USER, ATTR_DB_PASSWD, ATTR_DB_HOST] + LIST_ARTS_ATTR
 TOPIC_NODE_CLI = "cli"
 LIST_CLI_ATTR = [] + LIST_ARTS_ATTR
 TOPIC_NODE_API = "api"

basic/entity.py

@@ -7,6 +7,25 @@ class Entity:
     def __int__(self, job):
         self.job = job
 
+    def getDbAttr(self, job):
+        out = {}
+        for attr in [B.ATTR_DB_HOST, B.ATTR_DB_USER, B.ATTR_DB_DATABASE, B.ATTR_DB_PASSWD]:
+            out[attr] = job.conf.confs[B.TOPIC_NODE_DB][attr]
+        return out
+
+    def getDdl(self, job, ddl):
+        out = {}
+        for t in ddl:
+            out[t] = {}
+            for f in ddl[t]:
+                out[t][f] = {}
+                for a in ddl[t][f]:
+                    print("entity-23 "+f+", "+a+" "+str(ddl))
+                    out[t][f][a] = ddl[t][f][a]
+                out[t][f][D.DDL_FNAME] = f
+            out[t][B.DATA_NODE_HEADER] = list(ddl[t].keys())
+        return out
+
     def createSchema(self):
         if B.TOPIC_NODE_DB in self.job.conf.confs:
             dbi = basic.toolHandling.getDbTool(self.job, None, self.job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE])

basic/program.py

@@ -40,14 +40,14 @@ jobdef = {
 		"dirname": "workdir",
 		"loglevel": basic.message.LIMIT_INFO,
 		"logpath": "{job.conf.data}/workspace/reorg_{job.start:H}.txt" },
-	"temp": {
+	"service": {
 		"pardef": "",
 		"pfilesource": "",
 		"pfiletarget": "",
 		"basedir": "workbase",
 		"dirname": "workdir",
 		"loglevel": basic.message.LIMIT_INFO,
-		"logpath": "{job.par.envdir}/{log}/log_{job.start:H}.txt" },
+		"logpath": "{job.conf.data}/workspace/service_{job.start:H}.txt" },
 	"unit": {
 		"pardef": "",
 		"pfilesource": "",

basic/user.py

@@ -9,6 +9,20 @@ import utils.data_const as D
 import basic.constants as B
 import basic.entity
 
+ddl = {
+    "user": {
+        "id":   {
+            D.DDL_TYPE: D.TYPE_PK,
+        },
+        "username": {
+            D.DDL_TYPE: D.TYPE_STR,
+        },
+        "password": {
+            D.DDL_TYPE: D.TYPE_STRING,
+        }
+    }
+}
+
 class User(basic.entity.Entity):
     username = ""
     password = ""
@@ -19,6 +33,10 @@ class User(basic.entity.Entity):
         :param job:
         """
         self.job = job
+        self.conf = {}
+        self.conf[B.SUBJECT_CONN] = self.getDbAttr(job)
+        self.conf[B.DATA_NODE_DDL] = self.getDdl(job, ddl)
+        self.m = job.m
 
     def getSchema(self):
         dbtype = self.job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]

test/test_21tdata.py

@@ -20,7 +20,7 @@ OS_SYSTEM = test.constants.OS_SYSTEM
 # if you minimize the list you can check the specific test-function
 TEST_FUNCTIONS = ["test_01tdata", "test_02getCsvSpec_data", "test_03getCsvSpec_tree", "test_04getCsvSpec_key",
                   "test_05getCsvSpec_conf",  "test_06parseCsv"]
-# TEST_FUNCTIONS = ["test_getCsvSpec_data"]
+TEST_FUNCTIONS = ["test_05getCsvSpec_conf"]
 # with this variable you can switch prints on and off
 verbose = False
 

test/test_31db.py

@@ -16,14 +16,15 @@ import utils.db_abstract
 import test.testtools
 import utils.config_tool
 import utils.data_const as D
-
+import basic.user
 HOME_PATH = test.constants.HOME_PATH
 
 conf = {}
 # here you can select single testfunction for developping the tests
 # "test_toolhandling", "test_parseSql" -> test of components
-TEST_FUNCTIONS = ["test_formatDbRows"]
-# TEST_FUNCTIONS = ["test_getTechnicalIDFields"]
+TEST_FUNCTIONS = ["test_formatDbRows", "test_10insertion", "test_11selection", "test_12deletion"]
+#TEST_FUNCTIONS = ["test_10insertion", "test_11selection"]
+TEST_FUNCTIONS = ["test_10insertion","test_12deletion"]
 
 class MyTestCase(unittest.TestCase):
     mymsg = "--------------------------------------------------------------"
@@ -123,6 +124,62 @@ class MyTestCase(unittest.TestCase):
         MyTestCase.mymsg += "\n----- "+actfunction+" : "+str(cnttest)
 
 
+
+    def test_10insertion(self):
+        global mymsg
+        actfunction = str(inspect.currentframe().f_code.co_name)
+        cnttest = 0
+        if actfunction not in TEST_FUNCTIONS:
+            return
+        job = basic.program.Job("webflask", {})
+        if B.TOPIC_NODE_DB in job.conf.confs:
+            dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+            userentity = basic.user.User(job)
+            dbi = basic.toolHandling.getDbTool(job, userentity, dbtype)
+            data = {}
+            data["user"] = {}
+            data["user"][B.DATA_NODE_HEADER] = userentity.conf[B.DATA_NODE_DDL]["user"][B.DATA_NODE_HEADER]
+            data["user"][B.DATA_NODE_DATA] = []
+            row = {"username": "alfons", "password": "alfons-secret"}
+            data["user"][B.DATA_NODE_DATA].append(row)
+            dbi.insertRows("user", data["user"][B.DATA_NODE_DATA], job)
+
+    def test_11selection(self):
+        global mymsg
+        actfunction = str(inspect.currentframe().f_code.co_name)
+        cnttest = 0
+        if actfunction not in TEST_FUNCTIONS:
+            return
+        job = basic.program.Job("webflask", {})
+        if B.TOPIC_NODE_DB in job.conf.confs:
+            dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+            userentity = basic.user.User(job)
+            dbi = basic.toolHandling.getDbTool(job, userentity, dbtype)
+            rows = dbi.selectRows("user", job)
+            print (str(rows))
+        MyTestCase.mymsg += "\n----- "+actfunction+" : "+str(cnttest)
+
+    def test_12deletion(self):
+        global mymsg
+        actfunction = str(inspect.currentframe().f_code.co_name)
+        cnttest = 0
+        if actfunction not in TEST_FUNCTIONS:
+            return
+        job = basic.program.Job("webflask", {})
+        if B.TOPIC_NODE_DB in job.conf.confs:
+            dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+            userentity = basic.user.User(job)
+            dbi = basic.toolHandling.getDbTool(job, userentity, dbtype)
+            rows = dbi.selectRows("user", job, "WHERE username = \'alfons\'")
+            cntpre = len(rows)
+            print (str(rows))
+            dbi.deleteRows("user", job, "WHERE username = \'alfons\'")
+            rows = dbi.selectRows("user", job, "WHERE username = \'alfons\'")
+            print (str(rows))
+            cntpost = len(rows)
+            self.assertGreaterEqual(cntpre, cntpost)
+
+
     def test_zzz(self):
         print(MyTestCase.mymsg)
 

test/testtools.py

@@ -74,13 +74,12 @@ def getJob(pgran="", papp="", penv="", ptstamp="", pmode=""):
         path = DEFAULT_ARCHIV_DIR + "/TC0001/" + tstamp
     elif gran == "ts":
         path = DEFAULT_ARCHIV_DIR + "/testlauf/TST001_" + tstamp
-    job = basic.program.Job("unit")
     #job.conf.confs[B.SUBJECT_PATH]["components"] = T.COMP_PATH
     args = {"application": app, "environment": env, "modus": mode, gran+"time": tstamp,
             gran+"dir": path,
             "step": 2}
     #         "usecase": "TST001", "tstime": "2022-03-17_17-28"}
-    job.par.setParameterArgs(job, args)
+    job = basic.program.Job("unit", args)
     return job
 
 

utils/data_const.py

@@ -15,6 +15,7 @@ TYPE_FLOAT = "float"
 TYPE_DOUBLE = "double"
 TYPE_DATE = "date"
 TYPE_TIME = "time"
+TYPE_PK = "pk"
 
 # fields in DDL
 DDL_FNULLABLE = "nullable"

utils/db_abstract.py

@@ -61,15 +61,18 @@ def getDbAttributes(comp, table):
         B.ATTR_DB_DATABASE: "",
         B.ATTR_DB_SCHEMA: "",
         B.ATTR_DB_TABNAME: "",
+        B.ATTR_DB_USER: "",
+        B.ATTR_DB_PASSWD: "",
+        B.ATTR_DB_HOST: "",
         B.ATTR_DB_PARTITION: D.DEFAULT_DB_PARTITION,
         B.ATTR_DB_CONN_JAR: D.DEFAULT_DB_CONN_JAR
     }
     for attr in out.keys():
-        if (table in comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB]) \
+        if (B.SUBJECT_ARTS in comp.conf and table in comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB]) \
                 and (attr in comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB][table]):
             out[attr] = comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB][table][attr]
             print("a " + attr + " " + out[attr])
-        elif (attr in comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB]):
+        elif (B.SUBJECT_ARTS in comp.conf and attr in comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB]):
             out[attr] = comp.conf[B.SUBJECT_ARTS][B.TOPIC_NODE_DB][attr]
             print("b " + attr + " " + out[attr])
         elif (B.TOPIC_NODE_DB in comp.conf[B.SUBJECT_CONN]) \
@@ -241,7 +244,7 @@ def formatDbVal(msg, val, dtyp):
         pass
 
 
-def isCompTable(comp, data, table):
+def isCompTable(comp, job, data, table):
     """ checks if the table in data relates to the component """
     print(str(data))
     return isCompRow(comp, data[B.DATA_NODE_TABLES][table])
@@ -334,7 +337,7 @@ class DbFcts():
         self.loadDdl(job)
         for t in tdata[B.DATA_NODE_TABLES]:
             print("einzufuegende Tabelle "+self.comp.name+" "+t)
-            if isCompTable(self.comp, tdata, t):
+            if isCompTable(self.comp, job, tdata, t):
                 self.insertRows(t, tdata[B.DATA_NODE_TABLES][t][B.DATA_NODE_DATA], job)
                 self.comp.m.logMsg("in Tabelle {} {} Zeilen eingefuegt".format(
                     t, len(tdata[B.DATA_NODE_TABLES][t][B.DATA_NODE_DATA])))
@@ -372,7 +375,7 @@ class DbFcts():
         if len(value.strip()) == 0 and fo[D.DDL_FNULLABLE] == B.SVAL_YES:
             return self.getDbNull()
         if fo[D.DATA_NODE_TYPE] == D.TYPE_STRING or fo[D.DATA_NODE_TYPE] == D.TYPE_STR:
-            return "'"+value.strip()+"'"
+            return value.strip()
         elif fo[D.DATA_NODE_TYPE] == D.TYPE_INT:
             return value.strip()
         elif fo[D.DATA_NODE_TYPE] == D.TYPE_DOUBLE:

utils/dbmysql_tool.py

@@ -20,30 +20,46 @@ class DbFcts(utils.dbrel_tool.DbFcts):
     def __init__(self):
         pass
 
-  def selectRows(self, table, job):
+    def selectRows(self, table, job, where=""):
         """ method to select rows from a database
         statement written in sql """
         tdata = {}
         verify = -1+job.getDebugLevel("db_tool")
-    cmd = "SELECT * FROM "+table+";"
-    #mycursor = self.getConnector()
-    #mycursor.execute(cmd)
-    #myresult = mycursor.fetchall()
+        attr = self.getDbAttributes(B.SVAL_NULL)
+        sql = "SELECT * FROM "+attr[B.ATTR_DB_DATABASE]+"."+table
+        if len(where) > 3:
+            sql += " "+where
+        sql += ";"
+        self.comp.m.logInfo(sql)
+        connector = self.getConnector()
+        mycursor = connector.cursor()
+        mycursor.execute(sql)
+        myresult = mycursor.fetchall()
         tdata[B.DATA_NODE_HEADER] = []
         for f in self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]:
             tdata[B.DATA_NODE_HEADER].append(f)
-    myresult = []
+        tdata[B.DATA_NODE_DATA] = []
         for x in myresult:
-      print(x)
-    self.comp.m.logInfo(cmd)
+            r = {}
+            i = 0
+            for f in self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]:
+                r[f] = x[i]
+                i += 1
+            tdata[B.DATA_NODE_DATA].append(r)
+        self.comp.m.logInfo(str(tdata))
         return tdata
 
-  def deleteRows(self, table, job):
+    def deleteRows(self, table, job, where=""):
         """ method to delete rows from a database
         statement written in sql """
         verify = -1+job.getDebugLevel("db_tool")
-    cmd = "DELETE FROM "+table+";"
-    self.comp.m.logInfo(cmd)
+        attr = self.getDbAttributes(B.SVAL_NULL)
+        sql = "DELETE FROM "+attr[B.ATTR_DB_DATABASE]+"."+table
+        if len(where) > 3:
+            sql += " "+where
+        sql += ";"
+        self.comp.m.logInfo(sql)
+        self.execStatement(sql)
 
     def updateRows(self, statement, job):
         """ method to delete rows from a database
@@ -55,43 +71,61 @@ class DbFcts(utils.dbrel_tool.DbFcts):
         the rows will be interpreted by the ddl of the component
         """
         verify = -1+job.getDebugLevel("db_tool")
-    cmd = "INSERT INTO "+table+";"
-    header = ""
-    for h in self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]:
-      print(h)
-      header += ", "+h
-    cmd += " (" + header[1:]+" ) "
-    rowvalues = ""
+        attr = self.getDbAttributes(B.SVAL_NULL)
+        sql = "INSERT INTO "+attr[B.ATTR_DB_DATABASE]+"."+table
+        sql += " ( "+",".join(self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]) + " ) "
+        sql += " VALUES ( "
+        for x in self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]:
+            sql += "%s, "
+        sql = sql[0:-2] + " )"
+        self.comp.m.logInfo(sql)
+        values = []
         for r in rows:
-      print("r-----------------")
-      print(r)
-      rowvalues = ""
-      cmd += "\n ( "
+            rowvalues = []
             for h in self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_HEADER]:
-        print("h "+h)
+                if (self.comp.conf[B.DATA_NODE_DDL][table][h] == D.TYPE_PK):
+                    continue
                 if (h in r):
-          rowvalues += ", "+self.getDbValue(self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_DATA][h], r[h])
+                    rowvalues.append(self.getDbValue(self.comp.conf[B.DATA_NODE_DDL][table][h], r[h]))
                 else:
-          rowvalues += ", "+self.getDbValue(self.comp.conf[B.DATA_NODE_DDL][table][B.DATA_NODE_DATA][h], "")
-        print("rv " + rowvalues)
-      cmd += rowvalues[1:]+" ),"
-    cmd = cmd[0:-1]+";"
-    self.comp.m.logInfo(cmd)
+                    rowvalues.append(self.getDbValue(self.comp.conf[B.DATA_NODE_DDL][table][h], ""))
+            values.append( tuple(rowvalues))
+        self.comp.m.logInfo(str(values))
+        try:
+            connector = self.getConnector()
+            mycursor = connector.cursor()
+            mycursor.executemany(sql, values)
+            connector.commit()
+        except Exception as e:
+            self.comp.m.setError("")
+            return
+        self.comp.m.setMsg(str(len(values))+" rows inserted into "+table)
 
 
-  def execStatement(self, dbconn, statement):
+    def execStatement(self, statement):
         """ add-on-method to execute the statement
         this method should only called by the class itself """
-    print("execStatement "+statement)
-    connector = mysql.connector.connect(
-      host=dbconn["host"],
-      user=dbconn["user"],
-      password=dbconn["passwd"]
-    )
+        connector = self.getConnector()
         cursor = connector.cursor()
         try:
             cursor.execute(statement)
-    except:
+            connector.commit()
+        except Exception as e:
             if "CREATE INDEX " in statement:
                 return
-      raise Exception("DB-Exception "+statement)
+            raise Exception("DB-Exception "+statement+"\n"+e.__str__())
+        print("Statement executed "+statement)
+        self.comp.m.setMsg("Statement executed")
+
+    def getConnector(self):
+        """ add-on-method to get the connector
+        this method should only called by the class itself """
+        job = self.job # basic.program.Job.getInstance()
+        attr = self.getDbAttributes(B.SVAL_NULL)
+        cnx = mysql.connector.connect(
+          host=attr[B.ATTR_DB_HOST],
+          user=attr[B.ATTR_DB_USER],
+          password=attr[B.ATTR_DB_PASSWD],
+          database=attr[B.ATTR_DB_DATABASE]
+        )
+        return cnx

utils/tdata_tool.py

@@ -372,9 +372,13 @@ def splitFields(line, delimiter, job):
 
 def writeCsvData(filename, tdata, comp, job):
     text = ""
-    if B.DATA_NODE_TABLES in tdata:
-        for k in tdata[B.DATA_NODE_TABLES]:
-            text += buildCsvData(tdata, k, comp, job)
+    data = tdata
+    for p in [B.DATA_NODE_TABLES, P.KEY_PRECOND, P.KEY_POSTCOND]:
+        if p in data:
+            print("data "+p)
+            data = data[p]
+    for k in data:
+        text += buildCsvData(data, k, comp, job)
         text += "\n"
     utils.file_tool.writeFileText(comp.m, job, filename, text)
 
@@ -391,10 +395,6 @@ def buildCsvData(tdata, tableName, comp, job=None):
     for k in [D.DATA_ATTR_DATE, D.DATA_ATTR_COUNT]:
         if k in tdata:
             text += k+";"+str(tdata[k])+"\n"
-    x0 = "-------"+str(f"{B.DATA_NODE_TABLES=}")
-    x1 = "-------"+str(tableName)
-    x2 = str(utils.i18n_tool.I18n.getInstance(job).getText(f"{B.DATA_NODE_TABLES=}", job))
-    print(x0+" "+x1+" "+x2)
     if tableName in tdata:
         actdata = tdata[tableName]
     else:

webflask/auth.py

@@ -1,12 +1,18 @@
 # https://flask.palletsprojects.com/en/2.0.x/tutorial/views/
 # --------------------------------------------------------------
 import functools
+import traceback
+import basic.user
+import basic.program
+import basic.constants as B
+import basic.toolHandling
 
 from flask import (
     Blueprint, flash, g, redirect, render_template, request, session, url_for
 )
 from werkzeug.security import check_password_hash, generate_password_hash
 
+import basic.program
 from webflask.db import get_db
 
 bp = Blueprint('auth', __name__, url_prefix='/auth')
@@ -16,21 +22,24 @@ def login():
     if request.method == 'POST':
         username = request.form['username']
         password = request.form['password']
-        db = get_db()
+        job = basic.program.Job("webflask", {})
+        session['datest_job'] = job
+        dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+        userentity = basic.user.User(job)
+        dbi = basic.toolHandling.getDbTool(job, userentity, dbtype)
         error = None
-        user = db.execute(
-            'SELECT * FROM user WHERE username = ?', (username,)
-        ).fetchone()
+        row = dbi.selectRows("user", job, "WHERE username = \'" + username + "\'")
 
-        if user is None:
+        if row is None or len(row[B.DATA_NODE_DATA]) == 0:
             error = 'Incorrect username.'
-        elif not check_password_hash(user['password'], password):
+        elif not check_password_hash(row[B.DATA_NODE_DATA][0]['password'], password):
             error = 'Incorrect password.'
 
         if error is None:
             session.clear()
-            session['user_id'] = user['id']
-            return redirect(url_for('index'))
+            session['user_id'] = row[B.DATA_NODE_DATA][0]['id']
+            return redirect(url_for('testcase.overview'))
+
 
         flash(error)
 
@@ -41,7 +50,10 @@ def register():
     if request.method == 'POST':
         username = request.form['username']
         password = request.form['password']
-        db = get_db()
+        job = basic.program.Job("webflask", {})
+        dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+        dbi = basic.toolHandling.getDbTool(job, None, "mysql")
+        # db = get_db()
         error = None
 
         if not username:
@@ -51,13 +63,13 @@ def register():
 
         if error is None:
             try:
-                db.execute(
-                    "INSERT INTO user (username, password) VALUES (?, ?)",
-                    (username, generate_password_hash(password)),
-                )
-                db.commit()
-            except db.IntegrityError:
-                error = f"User {username} is already registered."
+                sql = "INSERT INTO datest.user (username, password) "
+                sql += "VALUES ( '"+username+"', '"+generate_password_hash(password)+"');"
+                dbi.execStatement(job.conf.confs[B.TOPIC_NODE_DB], sql )
+                #db.commit()
+            except Exception as e:
+                error = str(e)
+                # error = f"User {username} is already registered."
             else:
                 return redirect(url_for("auth.login"))
 
@@ -72,9 +84,20 @@ def load_logged_in_user():
     if user_id is None:
         g.user = None
     else:
-        g.user = get_db().execute(
-            'SELECT * FROM user WHERE id = ?', (user_id,)
-        ).fetchone()
+        job = basic.program.Job("webflask", {})
+        dbtype = job.conf.confs[B.TOPIC_NODE_DB][B.ATTR_TYPE]
+        userentity = basic.user.User(job)
+        dbi = basic.toolHandling.getDbTool(job, userentity, dbtype)
+        error = None
+        sql = "WHERE id = " + str(user_id)
+        row = dbi.selectRows("user", job, sql)
+        if len(row[B.DATA_NODE_DATA]) > 0:
+            g.user = row[B.DATA_NODE_DATA][0]
+        else:
+            g.user = None
+        #    get_db().execute(
+        #    'SELECT * FROM user WHERE id = ?', (user_id,)
+        #).fetchone()
 
 @bp.route('/logout')
 def logout():

webflask/db.py

@@ -13,6 +13,10 @@ def init_db():
         db.executescript(f.read().decode('utf8'))
 
 def get_db():
+    """
+    read config and check the db-connection
+    :return:
+    """
     if 'db' not in g:
         g.db = sqlite3.connect(
             current_app.config['DATABASE'],