PYROS

h1. Technical Documentation for the PYROS project (FGFT-CC)

HOWTO Format Redmine Wiki : http://www.redmine.org/projects/redmine/wiki/FrRedmineWikiFormatting

{{>toc}}

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h2. %{margin-left:0px; font-weight:bold; font-size:25px;  display:block; color:red;}TODO%

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h2. %{margin-left:0px; font-weight:bold; font-size:25px;  display:block; color:red;}I - INSTALLATION%

h3. If necessary, install MySql

 * Linux Ubuntu

<pre>

TODO:

$ sudo apt-get install mysql

...

</pre>

 * Linux CentOS

<pre>

TODO:

$ sudo yum install mysql

...

</pre>

 * Mac OS X

<pre>

TODO:

Install XAMPP

(but you could also use the pre-installed Mac OS MySql)

</pre>

 * Windows

<pre>

TODO:

</pre>

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h3. Create database

 * Linux and Mac OS X:

<pre>

One liner:

$ mysql -u root < pyros.sql

Or :

$ mysql -u root

mysql> create database pyros;

mysql> use pyros;

mysql> source pyros.sql;

(

TODO:

mysql> grant all on pyros.* to pyros@localhost identified by ‘pyros’;)

mysql> flush privileges;

)

</pre>

 * Windows:

<pre>

TODO: Use phpmyadmin ?

</pre>

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h3. Install python3.5

 * Mac OS X :

<pre>

1) Installer MacPort

(TODO: doc)

2) Installer le "port" python35

$ sudo port install python35

</pre>

 * Linux (Ubuntu) :

<pre>

$ sudo apt-get ...

</pre>

---

h3. Create project dir

$ mkdir pyros

---

h3. Create virtualenv with python3.5 dedicated to pyros project

$ cd pyros/

$ which python3.5

/opt/local/bin/python3.5

$ virtualenv-3.5 venv_py35_pyros -p /opt/local/bin/python3.5

=> creates a venv_py35_pyros/ folder inside pyros/

---

h3. Activate venv

<pre>

$ source venv_py35_pyros/bin/activate

$ python -V

Python 3.5.1

$ which pip

…/pyros/venv_py35_pyros/bin/pip

Upgrade pip to last version available :

$ pip install --upgrade pip

Collecting pip

  Downloading pip-8.1.1-py2.py3-none-any.whl (1.2MB)

Installing collected packages: pip

  Found existing installation: pip 7.1.2

    Uninstalling pip-7.1.2:

      Successfully uninstalled pip-7.1.2

Successfully installed pip-8.1.1

</pre>

h3. Install needed python packages (from within the virtual environment)

*Install Django* :

<pre>

$ pip install django

Collecting django

  Downloading Django-1.9.4-py2.py3-none-any.whl (6.6MB)

Installing collected packages: django

Successfully installed django-1.9.4

$ pip install django-admin-tools

Collecting django-admin-tools

  Downloading django_admin_tools-0.7.2-py2.py3-none-any.whl (289kB)

Installing collected packages: django-admin-tools

Successfully installed django-admin-tools-0.7.2

$ pip install django-debug-toolbar

Collecting django-debug-toolbar

  Downloading django_debug_toolbar-1.4-py2.py3-none-any.whl (212kB)

Requirement already satisfied (use --upgrade to upgrade): Django>=1.7 in ./venv_py35_pyros/lib/python3.5/site-packages (from django-debug-toolbar)

Collecting sqlparse (from django-debug-toolbar)

  Downloading sqlparse-0.1.19.tar.gz (58kB)

Building wheels for collected packages: sqlparse

  Running setup.py bdist_wheel for sqlparse ... done

  Stored in directory: /Users/epallier/Library/Caches/pip/wheels/7b/d4/72/6011bb100dd5fc213164e4bbee13d4e03261dd54ce6a5de6b8

Successfully built sqlparse

Installing collected packages: sqlparse, django-debug-toolbar

Successfully installed django-debug-toolbar-1.4 sqlparse-0.1.19

$ pip install django-extensions

Collecting django-extensions

  Downloading django_extensions-1.6.1-py2.py3-none-any.whl (202kB)

Collecting six>=1.2 (from django-extensions)

  Downloading six-1.10.0-py2.py3-none-any.whl

Installing collected packages: six, django-extensions

Successfully installed django-extensions-1.6.1 six-1.10.0

$ pip install django-suit

Collecting django-suit

  Downloading django-suit-0.2.18.tar.gz (587kB)

Building wheels for collected packages: django-suit

  Running setup.py bdist_wheel for django-suit ... done

  Stored in directory: /Users/epallier/Library/Caches/pip/wheels/12/8b/9a/e02ab0ad9229881638aa040d47d77c8f562999533811927d41

Successfully built django-suit

Installing collected packages: django-suit

Successfully installed django-suit-0.2.18

</pre>

*Install the web application server gunicorn (will be used in production instead of the dev django web server)* :

<pre>

$ pip install gunicorn

Collecting gunicorn

  Downloading gunicorn-19.4.5-py2.py3-none-any.whl (112kB)

Installing collected packages: gunicorn

Successfully installed gunicorn-19.4.5

</pre>

*Install the python mysql client*:

<pre>

$ pip install mysqlclient

...

</pre>

=> Issue under Mac OS X:

<pre>

Collecting mysqlclient

  Downloading mysqlclient-1.3.7.tar.gz (79kB)

Building wheels for collected packages: mysqlclient

  Running setup.py bdist_wheel for mysqlclient ... error

…

  ----------------------------------------

  Failed building wheel for mysqlclient

  Running setup.py clean for mysqlclient

Failed to build mysqlclient

Installing collected packages: mysqlclient

  Running setup.py install for mysqlclient ... done

Successfully installed mysqlclient-1.3.7

BOUH !!!

$ pip install --upgrade wheel

Collecting wheel

  Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)

Installing collected packages: wheel

  Found existing installation: wheel 0.24.0

    Uninstalling wheel-0.24.0:

      Successfully uninstalled wheel-0.24.0

Successfully installed wheel-0.29.0

$ pip uninstall mysqlclient

$ pip install mysqlclient

Collecting mysqlclient

  Using cached mysqlclient-1.3.7.tar.gz

Building wheels for collected packages: mysqlclient

  Running setup.py bdist_wheel for mysqlclient ... done

  Stored in directory: /Users/epallier/Library/Caches/pip/wheels/9b/06/50/d11418c26cf8f2156b13d4363b5afde8e7e75ebb8540d0228d

Successfully built mysqlclient

Installing collected packages: mysqlclient

Successfully installed mysqlclient-1.3.7

YES !!!

</pre>

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h3. Project organization

Example of a good organization :

1 project = N applis

(but 1 appli can be part of many projects)

(then 1 appli = N models)

<pre>

MYPROJECT/

	src/

		myproject/

		appli1/

		appli2/

		…

		appliN/

	public/

		static/

	private/

		requirements.txt

	venv_py35_pyros/

</pre>

Set needed folders:

<pre>

$ cd pyros/

$ mkdir private public

$ mkdir public/static

</pre>

---

h3. Create Django project pyros

<pre>

$ cd pyros/

$ django-admin startproject pyros

$ tree pyros/

pyros/

├── manage.py

└── pyros

    ├── __init__.py

    ├── settings.py

    ├── urls.py

    └── wsgi.py

$ mv pyros src

$ cd src/

$ ./manage.py runserver

(or gunicorn pyros.wsgi)

==> http://localhost:8000

</pre>

---

h3. Set Database engine as MySql

Edit src/pyros/settings.py

<pre>

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.mysql',

        'NAME': 'pyros',

        'USER': 'root',

        'PASSWORD': ''

    }

}

</pre>

---

h3. Import database into Django (with inspectdb)

$ cd src/

$ ./manage.py inspectdb > models.py

*Issue on Mac OS X*:

<pre>

Traceback (most recent call last):

  File "/Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/django/db/backends/mysql/base.py", line 25, in <module>

    import MySQLdb as Database

  File "/Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/MySQLdb/__init__.py", line 19, in <module>

    import _mysql

ImportError: dlopen(/Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so, 2): Library not loaded: libmysqlclient.18.dylib

  Referenced from: /Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so

  Reason: image not found

=> BOUH !!!

LA SOLUTION EST ICI : http://stackoverflow.com/questions/6383310/python-mysqldb-library-not-loaded-libmysqlclient-18-dylib

(

Apparemment, ceci aurait dû suffire:

mkdir -p /usr/local/lib   

ln -s /usr/local/mysql/lib/libmysql* /usr/local/lib

)

Mais j’ai fait ceci:

$ otool -L /Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so

/Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so:

	libmysqlclient.18.dylib (compatibility version 18.0.0, current version 18.0.0)

...

$ locate libmysqlclient.18.dylib

/Applications/XAMPP/xamppfiles/lib/libmysqlclient.18.dylib

/Library/SystemMigration/History/Migration-68137DFB-CB6A-4FBB-81E2-11BDB5D01E48/QuarantineRoot/usr/lib/libmysqlclient.18.dylib

$ sudo install_name_tool -change libmysqlclient.18.dylib /Applications/XAMPP/xamppfiles/lib/libmysqlclient.18.dylib /Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so

$ otool -L /Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so

/Users/epallier/Documents/_W_more/PROJECTS/GFT/SOFT/PYROS/pyros/venv_py35_pyros/lib/python3.5/site-packages/_mysql.cpython-35m-darwin.so:

	/Applications/XAMPP/xamppfiles/lib/libmysqlclient.18.dylib (compatibility version 18.0.0, current version 18.0.0)

...

$ ./manage.py inspectdb > models.py

=> YES !!!

</pre>

---

h3. Create a Django application pyrosapp

$ ./manage.py startapp pyrosapp

$ tree src

src

├── manage.py

├── pyros

│   ├── __init__.py

│   ├── __pycache__

│   │   ├── __init__.cpython-35.pyc

│   │   ├── settings.cpython-35.pyc

│   │   ├── urls.cpython-35.pyc

│   │   └── wsgi.cpython-35.pyc

│   ├── settings.py

│   ├── urls.py

│   └── wsgi.py

└── pyrosapp

    ├── __init__.py

    ├── admin.py

    ├── apps.py

    ├── migrations

    │   └── __init__.py

    ├── models.py

    ├── tests.py

    └── views.py

---

h3. Replace the default pyrosapp models.py with the inspectdb generated one

$ mv models.py pyrosapp/

---

h3. *TODO: Fix and improve the inspectdb generated file models.py*

$ cd pyrosapp/

$ vi models.py