Humming Via Kitchen

# django/db/models/base.py@213行目あたり
def save(self, raw=False):
    dispatcher.send(signal=signals.pre_save, sender=self.__class__,
                    instance=self, raw=raw)
    # 中略...

    dispatcher.send(signal=signals.post_save, sender=self.__class__,
                    instance=self, created=(not record_exists), raw=raw)

class Hige(models.Model):
    """
    HIGEなモデル
    """
    def save(self, raw=False):
        # なにか追加したい処理が入る。
        super(Hige, self).save(raw=raw)

class Hige(models.Model):
    """
    HIGEなモデル
    """
    def save(self, raw=False):
        """
        adminとかでは処理を追加したいので、
        オーバーライドせざるを得ないんだ。
        """
        # なにか追加したい処理が入る。
        super(Hige, self).save(raw=raw)

    def direct_save(self, raw=False):
        """
        たまーに処理を追加しないのも必要。
        """
        super(Hige, self).save(raw=raw)

# django/db/models/base.py@293行目あたり
def save(self):
    """
    Save the current instance. Override this in a subclass if you want to
    control the saving process.
    """
    self.save_base()

def save_base(self, raw=False, cls=None):
    """
    Does the heavy-lifting involved in saving. Subclasses shouldn't need to
    override this method. It's separate from save() in order to hide the
    need for overrides of save() to pass around internal-only parameters
    ('raw' and 'cls').
    """
    # 省略...

class Hige(models.Model):
    """
    HIGEなモデル
    """
    def save(self):
        """
        処理を追加したいのでオーバーライド。
        raw=Falseは無くなってるよ。
        """
        # なにか追加したい処理が入る。

        # self.save_base()ってしてないのはなんとなく。
        super(Hige, self).save()

import code
code.interact()

import IPython
IPython.Shell.IPShell().mainloop()

try:
    import IPython
    IPython.Shell.IPShell().mainloop()
except ImportError:
    import code
    code.interact()

DeprecationWarning: The ObjectPaginator is deprecated. Use django.core.paginator.Paginator instead.

def _get_count(self):
    "Returns the total number of objects, across all pages."
    if self._count is None:
        self._count = len(self.object_list) # <-- lenでカウントを取得
    return self._count
count = property(_get_count)

def _get_count(self):
    if self._count is None:
        self._count = self.object_list.count() # <-- QuerySetのcountをコール
    return self._count
count = property(_get_count)

try:
    # 返り値のobject_listはQuerySet
    object_list = paginator.get_page(page - 1)
except InvalidPage:
    raise Http404

try:
    # 返り値のpage_objはPage
    # マイナス１しなくて良くなった！
    page_obj = paginator.page(page)
except InvalidPage:
    raise Http404

# Pageの持つobject_listプロパティにQuerySetが入ってる
object_list = page_obj.object_list

class Someclass(Somebase):
    __metaclass__ = type
    x = 23

Someclass = type('Someclass', (Somebase,), {'x': 23})

>>> class HogeMetaclass(type):
...     def __new__(cls, name, bases, attrs):
...         """
...         printするだけの拡張
...         """
...         print "__new__ has been called."
...         return super(HogeMetaclass, cls).__new__(cls, name, bases, attrs)
...
>>> Hoge = HogeMetaclass('Hoge', (object,), {})
__new__ has been called.    # <- ちゃんと出た。
>>> Hoge
<class '__main__.Hoge'>

$ cd /usr/local/src
#   パッチファイル２枚をコピってくる
$ cp /opt/local/var/macports/sources/rsync.macports.org/release/ports/python/py25-mysql/files/* ./
$ curl -O http://osdn.dl.sourceforge.net/sourceforge/mysql-python/MySQL-python-1.2.2.tar.gz
$ tar zxf ./MySQL-python-1.2.2.tar.gz
$ cd MySQL-python-1.2.2
#   パッチ２枚を当てる
$ patch -p0 < ../patch-_mysql.c.diff
$ patch -p0 < ../patch-setup_posix.py.diff
$ cd ../
$ sudo easy_install -UZ ./MySQL-python-1.2.2

$ sudo easy_install Paste
$ sudo easy_install PasteScript

$ paster create
Selected and implied templates:
  PasteScript#basic_package  A basic setuptools-enabled package

Enter project name: myproject
Variables:
  egg:      myproject
  package:  myproject
  project:  myproject
Enter version (Version (like 0.1)) ['']: 0.1
Enter description (One-line description of the package) ['']: my first project
Enter long_description (Multi-line description (in reST)) ['']: my first project
Enter keywords (Space-separated keywords/tags) ['']: test
(省略)

$ sudo easy_install -UZ ./myproject
Processing myproject
Running setup.py -q bdist_egg --dist-dir /Users/nobu/tmp/myproject/egg-dist-tmp-GzZuQc
Adding myproject 0.1dev to easy-install.pth file

Installed /opt/local/lib/python2.5/site-packages/myproject-0.1dev-py2.5.egg
Processing dependencies for myproject==0.1dev
Finished processing dependencies for myproject==0.1dev

>>> import myproject
>>> dir(myproject)
['__builtins__', '__doc__', '__file__', '__name__', '__path__']

$ paster create

$ cd python-monologista
$ ls
python_monologista.egg-info/ pythonmonologista/           setup.cfg                    setup.py

$ rm -rf ./pythonmonologista

setup.cfg
setup.py
python_monologista.egg-info/PKG-INFO
python_monologista.egg-info/SOURCES.txt
python_monologista.egg-info/dependency_links.txt
python_monologista.egg-info/entry_points.txt
python_monologista.egg-info/not-zip-safe
python_monologista.egg-info/top_level.txt
monologista.py                  # <-- コレを足す
pythonmonologista/__init__.py   # <-- コレを消す

monologista.py      # <-- コレを足す
pythonmonologista   # <-- コレを消す

$ sudo easy_install -UZ python-monologista.tgz
Processing python-monologista.tgz
Running python-monologista/setup.py -q bdist_egg --dist-dir /tmp/easy_install-XXgsgg/python-monologista/egg-dist-tmp-FKUCd7
warning: install_lib: 'build/lib' does not exist -- no Python modules to install
Adding python-monologista 0.1dev to easy-install.pth file

Installed /opt/local/lib/python2.5/site-packages/python_monologista-0.1dev-py2.5.egg
Processing dependencies for python-monologista==0.1dev
Finished processing dependencies for python-monologista==0.1dev

from setuptools import setup, find_packages
import sys, os

version = '0.1'

setup(name='python-monologista',
      version=version,
      py_modules=['monologista'],   # <-- コレを足す
      # (省略)
      )

$ sudo easy_install -UZ pytthon-monologista.tgz

>>> from monologista import Api
>>> dir(Api)
['SHOW_URI',
 'TIMELINE_URI',
 'TODO_URI',
 'UPDATE_URI',
 '__class__',
 '__delattr__',
 '__dict__',
 '__doc__',
 '__getattribute__',
 '__hash__',
 '__init__',
 '__module__',
 '__new__',
 '__reduce__',
 '__reduce_ex__',
 '__repr__',
 '__setattr__',
 '__str__',
 '__weakref__',
 'get_url',
 'public_timeline',
 'update',
 'user_timeline',
 'validator']

#!/usr/bin/env python
# vim: encoding=utf=8

from optparse import OptionParser

parser = OptionParser()

def main():
    options, args = parser.parse_args()
    print options
    print args

if __name__ == '__main__':
    main()

$ ./hoge.py -h
Usage: hoge.py [options]

Options:
  -h, --help  show this help message and exit

parser = OptionParser()
parser.add_option("-f", "--file", dest="filename",
                  help="write report to FILE", metabar="FILE")
parser.add_option("-q", "--quiet", action="store_false",
                  dest="verbose", default=True,
                  help="don't print status messages to stdout")

$ ./hoge.py -h
Usage: hoge.py [options]

Options:
  -h, --help            show this help message and exit
  -f FILE, --file=FILE  write report to FILE
  -q, --quiet           don't print status messages to stdout

$ ./hoge.py -f hoge.txt
{'verbose': True, 'filename': 'hoge.txt'}
[]

$ ./hoge.py -f hige.txt -q
{'verbose': False, 'filename': 'hige.txt'}
[]

$ ./hoge.py hoge -f hige.txt -q
{'verbose': False, 'filename': 'hige.txt'}
['hoge']

def post_save_entry(instance, created, raw):
    """
    エントリーのセーブ後のフック
    """
    if raw or not created:
        # raw=Trueか新規登録じゃ無い場合はココでおしまい。
        return
    # 実際やりたい処理がつづく。

# urls.py
urpatterns = patterns('django.views.generic.simple',
    #   weblogに来たリクエストをリダイレクト。
    (r'^weblog/(?P<path>.*)$', 'redirect_to', {'url': '/%(path)s'}),
    #   bookmarkに来たリクエストは410を返す。
    (r'^bookmark/(?P<path>.*)$', 'redirect_to', {'url: None'}),
)