Friday, April 1, 2016¶
I read How to Upgrade Your Ext JS 3.4 Apps to Ext JS 6, a blog post by Olga Petrova (Sales Engineer and software developer at Sencha). Nice to read that Lino is not the only one who has been waiting so long! Maybe these examples can help us for #37.
I listened to the first ten minutes of The Waterfall Model and “Managing the Development of Large Software Systems” (PT007). Yes, these are important things to know… but I have the feeling that I “know” them. Or at least that Lino is doing well at that level. I am not (and I don’t plan to become) owner of a big company. I see the Lino community rather as a network than as a company. I see my role as the one who gives a chiquenaude initiale to a system that will live on its own, a “world” where software is being done by people who love their work… oops, Luc, stop dreaming and start working!
For ticket #147 I plan a phone meeting with Wilfried next week. Before this, I want to verify whether everything we discussed last time has been done. As a first step I updated the functional specs in ledger: General accounting and Accounting for Lino Welfare.
Sidenote. While running inv prep test for Lino Welfare, I tried to build some Sphinx docs under Python 3. Which failed. Lots of errors which depend on complex environmental conditions. Here is one which seemed surprising:
(py3)$ pip install appy
Downloading/unpacking appy
Downloading appy-0.9.3.tar.gz (1.8MB): 1.8MB downloaded
Running setup.py (path:/virtualenvs/py3/build/appy/setup.py) egg_info for package appy
package init file 'appy/pod/test/images/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/results/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/tr/__init__.py' not found (or not a regular file)
package init file 'appy/gen/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/aqua/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/tiger/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/lang/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/ckeditor/__init__.py' not found (or not a regular file)
Installing collected packages: appy
Running setup.py install for appy
package init file 'appy/pod/test/images/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/results/__init__.py' not found (or not a regular file)
package init file 'appy/pod/test/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/tr/__init__.py' not found (or not a regular file)
package init file 'appy/gen/templates/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/aqua/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/skins/tiger/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/jscalendar/lang/__init__.py' not found (or not a regular file)
package init file 'appy/gen/ui/ckeditor/__init__.py' not found (or not a regular file)
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/__init__.py", line 126
print '%d method(s) patched from %s to %s (%s)' % \
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/__init__.py", line 770
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/date.py", line 236
except DateTime.DateError, ValueError:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/pod.py", line 578
exec cmd
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/ref.py", line 1609
exec 'self.%sObject(appyObj, tied, noSecurity=False)' % action
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/string.py", line 828
exec 'res = obj.%s(*args)' % methodName
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/boolean.py", line 130
exec 'res = %s' % value
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/calendar.py", line 550
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/fields/file.py", line 111
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/job.py", line 85
exec 'targetObject.%s(*args)' % toolMethod
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/asksap.py", line 79
except SapError, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/backup.py", line 88
except IOError, ioe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/eggify.py", line 173
except EggifierError, ee:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/generate.py", line 74
except GeneratorError, ge:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/restore.py", line 60
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/odfwalk.py", line 33
print 'Walking %s...' % fileName
^
SyntaxError: Missing parentheses in call to 'print'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/bin/new.py", line 109
os.chmod('bin/zopectl', 0744) # Make it executable by owner.
^
SyntaxError: invalid token
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/px/__init__.py", line 67
except xml.sax.SAXParseException, spe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/csv_parser.py", line 114
exec 'res = %s' % str(value)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/utils.py", line 48
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/diff.py", line 309
exec 'msg = self.%sMsg' % type
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/packaging.py", line 164
os.chmod(name, 0744) # Make it executable by owner.
^
SyntaxError: invalid token
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/dav.py", line 120
except xml.sax.SAXParseException, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/tables.py", line 141
except TypeError, te:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/xml_parser.py", line 472
except Exception, err:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/ldap_connector.py", line 162
exec 'login = login.%s()' % self.loginTransform
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/shared/sap.py", line 77
except pysap.BaseSapRfcError, se:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/elements.py", line 202
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/test/Tester.py", line 110
exec 'import %s' % contextPkg
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/actions.py", line 114
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/doc_importers.py", line 340
except ResourceError, re:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/renderer.py", line 377
except OSError, oe:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/pod/buffers.py", line 243
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/descriptors.py", line 219
exec "self.modelClass.%s = fieldType" % fieldName
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/model.py", line 123
exec 'appyType = klass.%s' % name
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/utils.py", line 14
exec 'from Products.%s.%s import %s as ZopeClass' % \
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/navigate.py", line 90
exec 'needIt = self.%sNeeded' % urlType
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/wrappers/__init__.py", line 1021
except AttributeError, ae:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/wrappers/ToolWrapper.py", line 516
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/generator.py", line 202
exec 'moduleElem = module.%s' % name
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mail.py", line 127
except smtplib.SMTPException, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/layout.py", line 186
exec 'self.%s = %s%s' % (param, source, param)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/__init__.py", line 600
except Exception, e:
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/ToolMixin.py", line 530
exec 'from Products.%s.%s import %s as C'% (self.getAppName(),name,name)
^
SyntaxError: invalid syntax
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/mixins/TestMixin.py", line 16
exec 'import %s' % moduleName
^
SyntaxError: Missing parentheses in call to 'exec'
File "/virtualenvs/py3/lib/python3.4/site-packages/appy/gen/installer.py", line 302
exec 'from %s import manage_add%s as ctor' % (module, name)
^
SyntaxError: invalid syntax
Successfully installed appy
Cleaning up...
The sum of a boolean field¶
I discovered the following question: Should boolean fields sum up like numeric fields, with value 1 when True and 0 when False, and thus displaying as their sum the number of rows having True? Until today my answer was Yes.
But this choice leads to results like the following:
>>> rt.show(ledger.AccountTypes)
...
==================== =============== =============== ======== ==========
value name text D/C Sheet
-------------------- --------------- --------------- -------- ----------
A assets Assets Debit Balance
L liabilities Liabilities Credit Balance
I incomes Incomes Credit Earnings
E expenses Expenses Debit Earnings
C capital Capital Credit Balance
B bank_accounts Bank accounts Debit Balance
**Total (6 rows)** **3**
==================== =============== =============== ======== ==========
In the above example the sums are obviously disturbing, both visually and conceptually.
So I now removed the value2num method of
lino.modlib.extjs.elems.BooleanMixin. And the above snippet
now looks better:
>>> rt.show(ledger.AccountTypes)
...
======= =============== =============== ======== ==========
value name text D/C Sheet
------- --------------- --------------- -------- ----------
A assets Assets Debit Balance
L liabilities Liabilities Credit Balance
I incomes Incomes Credit Earnings
E expenses Expenses Debit Earnings
C capital Capital Credit Balance
B bank_accounts Bank accounts Debit Balance
======= =============== =============== ======== ==========
This change (as expected) caused changes in several tested docs: ledger: General accounting, Ledger Uploads in Lino Welfare Polls in Lino Welfare The lino_welfare.modlib.pcsw plugin Accounting for Lino Welfare isip : Individual Social Integration Projects Integration Service Usage of database excerpts in Lino Welfare Career (new version) Filtering clients Multiple postal addresses Automatic calendar events Configuring print templates
But all these changes confirmed that it was a good idea to change my answer to our question from Yes to No.