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8f1f04e5f3
- Reformat source so it's wrapped. - Standardise markup. - Center images. - Restructure in various places to improve the indexing. - Remove duplicated Query Tool toolbar descriptions. - Ensure the structure works in both HTML and LaTeX.
93 lines
2.6 KiB
ReStructuredText
93 lines
2.6 KiB
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*********************
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`Translations`:index:
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*********************
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pgAdmin supports multiple languages using the `Flask-Babel
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<https://pythonhosted.org/Flask-Babel/>`_ Python module. A list of supported
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languages is included in the **web/config.py** configuration file and must be
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updated whenever languages are added or removed with
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`ISO 639-1 <https://en.wikipedia.org/wiki/ISO_639-1>`_ (two letter) language
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codes. The codes are named **$LANG** in this document.
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Translation Marking
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*******************
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Strings can be marked for translation in either Python code (using **gettext()**)
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or Jinja templates (using **_()**). Here are some examples that show how this
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is achieved.
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Python:
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.. code-block:: python
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errormsg = gettext('No server group name was specified')
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Jinja:
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.. code-block:: html
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<input type="submit" value="{{ _('Change Password') }}">
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.. code-block:: html
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<title>{{ _('%(appname)s Password Change', appname=config.APP_NAME) }}</title>
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.. code-block:: javascript
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define(['sources/gettext', ...], function(gettext, ...){
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...
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var alert = alertify.prompt(
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gettext('Password Change'),
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gettext('New password for %(userName)s', {userName: 'jsmith' }),
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...
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)
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})
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Updating and Merging
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********************
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Whenever new strings are added to the application, the template catalogue
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(**web/pgadmin/messages.pot**) and the existing translation
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catalogues (**web/pgadmin/translations/$LANG/LC_MESSAGES/messages.po**) must be
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updated and compiled. This can be achieved using the following commands from the
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**web** directory in the Python virtual environment for pgAdmin:
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.. code-block:: bash
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(pgadmin4) user$ pybabel extract -F babel.cfg -o pgadmin/messages.pot pgadmin
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Once the template has been updated it needs to be merged into the existing
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message catalogues:
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.. code-block:: bash
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(pgadmin4) user$ pybabel update -i pgadmin/messages.pot -d pgadmin/translations
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Finally, the message catalogues can be compiled for use:
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.. code-block:: bash
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(pgadmin4) user$ pybabel compile -d pgadmin/translations
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Adding a New Language
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*********************
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Adding a new language is simple. First, add the language name and identifier to
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**web/config.py**::
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# Languages we support in the UI
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LANGUAGES = {
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'en': 'English',
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'zh': 'Chinese (Simplified)',
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'de': 'German',
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'pl': 'Polish'
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}
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Then, create the new message catalogue from the **web** directory in the source
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tree in the Python virtual environment for pgAdmin:
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.. code-block:: bash
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(pgadmin4) user$ pybabel init -i pgadmin/messages.pot -d pgadmin/translations -l $LANG
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