Mercurial > p > roundup > code
comparison roundup/cgi/engine_jinja2.py @ 4743:2d6959f1d2df
templating: proof of concept for Jinja2 support. Select 'jinja2'
template_engine in config and place .html templates into
html/jinja2
| author | anatoly techtonik <techtonik@gmail.com> |
|---|---|
| date | Thu, 17 Jan 2013 15:21:54 +0300 |
| parents | |
| children | e339583eae8e |
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| 4742:9cc6d463cfbe | 4743:2d6959f1d2df |
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| 1 """ | |
| 2 Experimental Jinja2 support for Roundup. It will become less | |
| 3 experimental when it is completely clear what information is | |
| 4 passed to template, and when the info is limited to the sane | |
| 5 minimal set (to avoid Roundup state changes from template). | |
| 6 | |
| 7 [ ] fallback mechanizm to use multiple templating engines in | |
| 8 parallel and aid in incremental translation from one | |
| 9 engine to another | |
| 10 | |
| 11 [ ] define a place for templates | |
| 12 probably | |
| 13 TRACKER_HOME/templates/jinja2 | |
| 14 with | |
| 15 TRACKER_HOME/templates/INFO.txt | |
| 16 describing how the dir was created, for example | |
| 17 "This is a copy of 'classic' template from ..." | |
| 18 also template fallback mechanizm for multi-engine | |
| 19 configuration | |
| 20 [ ] backward compatibility - if no engine is explicitly | |
| 21 specified, use TRACKER_HOME/html directory | |
| 22 [ ] copy TEMPLATES-INFO.txt to INFO.txt | |
| 23 [ ] implement VERSION file in environment for auto | |
| 24 upgrade | |
| 25 [ ] figure out what to do with autoescaping - it is disabled | |
| 26 by default in Jinja2 | |
| 27 | |
| 28 [ ] precompileTemplates is a stub | |
| 29 | |
| 30 [ ] add {{ debug() }} dumper to inspect available variables | |
| 31 https://github.com/mitsuhiko/jinja2/issues/174 | |
| 32 """ | |
| 33 | |
| 34 import jinja2 | |
| 35 | |
| 36 # http://jinja.pocoo.org/docs/api/#loaders | |
| 37 | |
| 38 from roundup.cgi.templating import context, LoaderBase, TemplateBase | |
| 39 | |
| 40 class Jinja2Loader(LoaderBase): | |
| 41 def __init__(self, dir): | |
| 42 jinjadir = dir + '/jinja2' | |
| 43 # [ ] separate configuration when multiple loaders are used | |
| 44 print "Jinja2 templates:", jinjadir | |
| 45 self._env = jinja2.Environment( | |
| 46 loader=jinja2.FileSystemLoader(jinjadir) | |
| 47 ) | |
| 48 | |
| 49 def check(self, tplname): | |
| 50 print tplname | |
| 51 try: | |
| 52 print self._env.get_template(tplname + '.html') | |
| 53 except jinja2.TemplateNotFound: | |
| 54 return | |
| 55 else: | |
| 56 return True | |
| 57 | |
| 58 def load(self, tplname): | |
| 59 #src, filename = self.check(tplname) | |
| 60 return Jinja2ProxyPageTemplate(self._env.get_template(tplname + '.html')) | |
| 61 | |
| 62 def precompileTemplates(self): | |
| 63 pass | |
| 64 | |
| 65 class Jinja2ProxyPageTemplate(TemplateBase): | |
| 66 def __init__(self, template): | |
| 67 self._tpl = template | |
| 68 | |
| 69 def render(self, client, classname, request, **options): | |
| 70 # [ ] limit the information passed to the minimal necessary set | |
| 71 c = context(client, self, classname, request) | |
| 72 '''c.update({'options': options}) | |
| 73 | |
| 74 def translate(msgid, domain=None, mapping=None, default=None): | |
| 75 result = client.translator.translate(domain, msgid, | |
| 76 mapping=mapping, default=default) | |
| 77 return unicode(result, client.translator.OUTPUT_ENCODING) | |
| 78 | |
| 79 output = self._pt.render(None, translate, **c) | |
| 80 return output.encode(client.charset) | |
| 81 ''' | |
| 82 return self._tpl.render(c) | |
| 83 | |
| 84 def __getitem__(self, name): | |
| 85 # [ ] figure out what are these for | |
| 86 raise NotImplemented | |
| 87 #return self._pt[name] | |
| 88 | |
| 89 def __getattr__(self, name): | |
| 90 # [ ] figure out what are these for | |
| 91 raise NotImplemented | |
| 92 #return getattr(self._pt, name) | |
| 93 |