1
"""Support for Zope Page Templates using the simpletal library."""
1
"TurboGears support for Zope Page Templates"
3
from template import zpt
8
from simpletal import simpleTAL, simpleTALES
10
logging.getLogger("simpleTAL").setLevel(logging.INFO)
11
logging.getLogger("simpleTALES").setLevel(logging.INFO)
16
tinstance = _zpt_cache.get(tfile)
18
if tinstance is None or tinstance.stat != stat:
19
tinstance = _zpt_cache[tfile] = TemplateWrapper(
20
simpleTAL.compileXMLTemplate(open(tfile)), tfile, stat)
24
class TemplateWrapper(object):
26
def __init__(self, template, filename, stat):
27
self.template = template
28
self.filename = filename
31
def expand(self, **info):
32
context = simpleTALES.Context(allowPythonPath=1)
33
for k, v in info.iteritems():
34
context.addGlobal(k, v)
35
s = StringIO.StringIO()
36
self.template.expandInline(context, s)
39
def expand_into(self, f, **info):
40
context = simpleTALES.Context(allowPythonPath=1)
41
for k, v in info.iteritems():
42
context.addGlobal(k, v)
43
self.template.expand(context, f, 'utf-8')
47
return self.template.macros
50
def load_template(classname):
51
"""Searches for a template along the Python path.
53
Template files must end in ".pt" and be in legitimate packages.
54
Templates are automatically checked for changes and reloaded as
57
divider = classname.rfind(".")
59
package = classname[0:divider]
60
basename = classname[divider+1:]
62
raise ValueError, "All templates must be in a package"
64
tfile = pkg_resources.resource_filename(
65
package, "%s.%s" % (basename, "pt"))
7
log = logging.getLogger("turbogears.zptsupport")
9
class TurboZpt(object):
12
def __init__(self, extra_vars_func=None):
13
self.get_extra_vars = extra_vars_func
15
def load_template(self, classname, loadingSite=False):
16
"""Searches for a template along the Python path.
18
Template files must end in ".pt" and be in legitimate packages.
19
Templates are automatically checked for changes and reloaded as
22
divider = classname.rfind(".")
24
package = classname[0:divider]
25
basename = classname[divider+1:]
27
raise ValueError, "All templates must be in a package"
29
tfile = pkg_resources.resource_filename(
30
package, "%s.%s" % (basename, self.extension))
33
def render(self, info, format="html", fragment=False, template=None):
34
"""Renders data in the desired format.
36
@param info: the data / context itself
39
@type format: "string"
40
@para template: name of the template to use
41
@type template: string
43
tinstance = self.load_template(template)
44
log.debug("Applying template %s" % (tinstance.filename))
46
if self.get_extra_vars:
47
data.update(self.get_extra_vars())
49
return tinstance(**data).encode('utf-8')