Monthly Archives: 2011-3

Ghetto logging for PHP

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In the case you need to quickly see if certain code path is executed on a production server for which config cannot be changed.

file_put_contents("/tmp/log.txt", "this is a test entry\n");

The proper method would be

  • Configure error log in php.ini
  • Use error_log()
  • …. or use logging facility of your PHP framework

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scp file copy with on-line compression

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This might come handy if you need to copy a database file (Data.fs) from the remote server to your local computer:

scp -C -o CompressionLevel=9 user@yoursite.com:~/plonefolder/zinstance/var/filestorage/Data.fs .

This command line enables real-time compression with the highest compression level. This speeds up copying somewhat, as ZODB database compresses pretty well.

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Installing MySQL-python connector on OSX

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Preconditions

  • You are using MySQL installation from mysql.com (and not e.g. from Macports)
  • You want to install MySQL-python egg using easy_install or buildout

You’ll get an error

Getting distribution for 'MySQL-python'.
install_dir /Users/moo/project/eggs/tmp8-j13e
sh: mysql_config: command not found
Traceback (most recent call last):
 File "<string>", line 1, in ?
 File "/Users/moo/code/collective.buildout.python/python-2.4/lib/python2.4/site-packages/distribute-0.6.14-py2.4.egg/setuptools/command/easy_install.py", line 1855, in main
 with_ei_usage(lambda:
 File "/Users/moo/code/collective.buildout.python/python-2.4/lib/python2.4/site-packages/distribute-0.6.14-py2.4.egg/setuptools/command/easy_install.py", line 1836, in with_ei_usage
 return f()  
...

 31, in <lambda>
 {'__file__':setup_script, '__name__':'__main__'}
 File "setup.py", line 15, in ?
 File "/var/folders/O8/O8pt7q52F7Oi+P3O0pNqq++++TI/-Tmp-/easy_install-g5cvxl/MySQL-python-1.2.3/setup_posix.py", line 43, in get_config
 File "/var/folders/O8/O8pt7q52F7Oi+P3O0pNqq++++TI/-Tmp-/easy_install-g5cvxl/MySQL-python-1.2.3/setup_posix.py", line 24, in mysql_config
EnvironmentError: mysql_config not found
An error occured when trying to install MySQL-python 1.2.3.Look above this message for any errors thatwere output by easy_install.
While:
 Installing instance.
 Getting distribution for 'MySQL-python'.
Error: Couldn't install: MySQL-python 1.2.3

The reason is that MySQL installer puts MySQL under /usr/local and does not expose MySQL utilites directly to path. MySQL-python expects to find utility mysql_config to configure compile time paths when building native bindings using GCC.

Workaround:

sudo -i
cd /usr/bin
ln -s /usr/local/mysql-5.1.46-osx10.5-x86_64/bin/mysql_config .

Then rerun installer.

Though it is a bit harsh solution to modify system folder, it gets the thing done in simple manner.

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Mobilize your Plone web site

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Web and Mobile 1.0 for Plone has been out for a while now. Web and Mobile allows you create a mobile site out of your Plone web site very easily. There already exists some projects using this add-on and we are getting some traffic on the mailing list. Web and Mobile works on both old Plone 3 sites and new Plone 4 sites.

We here at mFabrik are interested to find organizations who are looking for

  • Mobilizing their existing web sites
  • Building mobile applications
  • Need training regarding mobile development

Web and Mobile comes with commercial support if you need to guarantee that there is a person available fixing mobile related bugs on your site.

We’d also like to hear  if you do not find Web and Mobile a suitable solution for your Plone site: what are the pain points there and where we could help.

You can contact our Plone team via email research at mfabrik dot com.

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