ok, i tried to minimalized the scope (start from simple scratch)
*1. copy welcome scaffolding app*
cp -R ~/site/web2py/applications/welcome/ ~/site/web2py/applications/z
*2. Run Web2py with profiler*
source ~/site/bin/activate
python ~/site/web2py/web2py.py --nogui --no-banner -a 'a' -i 0.0.0.0 -p
8000 -F ~/Downloads/profiler
*3. modified models/db.py (put in the bottom the code in example 1 above)*
def login_onfail(form):
username = request.vars.username
row = db((db.auth_user.username == username ) ).iterselect(cache =
cache_db,
cacheable =
True).first()
if row is not None:
db.auth_event.insert(time_stamp = request.now,
client_ip = request.client,
user_id = id,
origin = '%s/%s' % (request.controller,
request.function),
description = '%s login failed' % (username) )
auth.settings.login_onfail.append(login_onfail)
*4. create new file models/db_schema_1_person.py (to eliminate another code
i make a new file that contain code in example 2 above)*
# -*- coding: utf-8 -*-
def before_insert_person(f):
if f['auth_user']:
query_auth_user = (db.auth_user.id == f['auth_user'] )
row_auth_user = db(query_auth_user).iterselect(cache = (cache.ram,
3600),
cacheable =
True).first()
f['username'] = row_auth_user.username
f['first_name'] = row_auth_user.first_name
f['last_name'] = row_auth_user.last_name
f['email'] = row_auth_user.email
def on_define_person(table):
table._before_insert.append(before_insert_person)
db.define_table('person',
Field('is_auth', 'boolean'),
Field('auth_user', 'reference auth_user'),
Field('username'),
Field('first_name'),
Field('last_name'),
Field('email', 'list:string'),
on_define = on_define_person,
format = lambda r: '%s %s' % (r.first_name, r.last_name) )
*5. Remove profiled files from previous to make easiest to see the current
one running*
rm -rf ~/Downloads/profiler/*
*6. Go to new web2py app using browser : http://127.0.0.1:8000/z*
*7. Run snakeviz*
source ~/site/bin/activate
snakeviz ~/Downloads/profiler/req_uuid.prof
*8. Snakeviz result in models side :*
*filename:lineno(funtion)*
*db.py:8(<module>)*
*db_schema_1_person.py:13(on_define_person)*
*db_schema_1_person.py:3(<module>)*
explain db.py:8 is about, (the default scaffolding app)
if request.global_settings.web2py_version < "2.14.1":
raise HTTP(500, "Requires web2py 2.13.3 or newer")
db_schema_1_person.py:13(on_define_person), no question in here either
db_schema_1_person.py:3(<module>)
*question*
why the same callback function (comparing login_onfail (not executed) and
before_insert_person (executed) ) ?
as you see in my step above, i just trying to hit http://127.0.0.1:8000/z,
no trying to login or insert the new record of table person
*another question is about validator*
e.g.
requires_person = IS_IN_DB(db, db.person.id, db.person._format)
the above code works when put in models and controllers, why i can't put it
on modules, it's return an error, is there any way to put it on modules
using web2py way?
*modules/test_field_constructor.py*
requires_person = IS_IN_DB(current.db, current.db.person.id,
current.db.person._format)* # return an error*
thanks and best regards,
stifan
--
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