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annotate roundup/backends/__init__.py @ 5005:a86b0c02940d

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Remove the tsearch2 backend The documentation within the tsearch2 backend labels it as being experimental and that it should not be used. The have_backend() function in roundup.backend returns False indicating that it does not exist and is labeled as "currently not working". The PostgreSQL website also seems to indicate that it has been deprecated since v8.3 when text searching was integrated into the core[1]. Considering all this, it seems like the best option is to just remove the tsearch2 backend. [1] http://www.postgresql.org/docs/9.4/static/tsearch2.html
author John Kristensen <john@jerrykan.com>
date Sun, 11 Oct 2015 00:06:51 +1100
parents 4960a2c21590
children 198b6e810c67
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17
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18 '''Container for the hyperdb storage backend implementations.
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19 '''
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20 __docformat__ = 'restructuredtext'
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22 import sys
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24 # These names are used to suppress import errors.
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25 # If get_backend raises an ImportError with appropriate
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26 # module name, have_backend quietly returns False.
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27 # Otherwise the error is reraised.
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28 _modules = {
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29 'mysql': ('MySQLdb',),
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30 'postgresql': ('psycopg',),
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31 'sqlite': ('pysqlite', 'pysqlite2', 'sqlite3', '_sqlite3', 'sqlite'),
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32 }
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34 def get_backend(name):
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35 '''Get a specific backend by name.'''
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36 vars = globals()
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37 # if requested backend has been imported yet, return current instance
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38 if name in vars:
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39 return vars[name]
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40 # import the backend module
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41 module_name = 'back_%s' % name
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42 module = __import__(module_name, vars)
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43 vars[name] = module
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44 return module
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46 def have_backend(name):
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47 '''Is backend "name" available?'''
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48 try:
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49 get_backend(name)
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50 return 1
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51 except ImportError, e:
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52 for name in _modules.get(name, (name,)):
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53 if str(e).startswith('No module named %s'%name):
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54 return 0
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55 raise
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56 return 0
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58 def list_backends():
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59 '''List all available backend names.
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61 This function has side-effect of registering backward-compatible
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62 globals for all available backends.
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64 '''
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65 l = []
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66 for name in 'anydbm', 'mysql', 'sqlite', 'postgresql':
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67 if have_backend(name):
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68 l.append(name)
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69 return l
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71 # vim: set filetype=python sts=4 sw=4 et si :
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