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comparison piecrust/rendering.py @ 153:1c3d229158ba

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Make a nice error message when a layout hasn't been found.
author Ludovic Chabant <ludovic@chabant.com>
date Thu, 04 Dec 2014 12:49:53 -0800
parents 28444014ce7d
children 1187739e5a19
comparison
equal deleted inserted replaced
152:8d956bd94ad2 153:1c3d229158ba
2 import os.path 2 import os.path
3 import logging 3 import logging
4 from piecrust.data.builder import (DataBuildingContext, build_page_data, 4 from piecrust.data.builder import (DataBuildingContext, build_page_data,
5 build_layout_data) 5 build_layout_data)
6 from piecrust.sources.base import PageSource 6 from piecrust.sources.base import PageSource
7 from piecrust.templating.base import TemplatingError 7 from piecrust.templating.base import TemplateNotFoundError, TemplatingError
8 from piecrust.uriutil import get_slug 8 from piecrust.uriutil import get_slug
9 9
10 10
11 logger = logging.getLogger(__name__) 11 logger = logging.getLogger(__name__)
12 12
203 _, engine_name = os.path.splitext(full_names[0]) 203 _, engine_name = os.path.splitext(full_names[0])
204 engine_name = engine_name.lstrip('.') 204 engine_name = engine_name.lstrip('.')
205 engine = get_template_engine(page.app, engine_name) 205 engine = get_template_engine(page.app, engine_name)
206 if engine is None: 206 if engine is None:
207 raise PageRenderingError("No such template engine: %s" % engine_name) 207 raise PageRenderingError("No such template engine: %s" % engine_name)
208 output = engine.renderFile(full_names, layout_data) 208 try:
209 output = engine.renderFile(full_names, layout_data)
210 except TemplateNotFoundError as ex:
211 msg = "Can't find template for page: %s\n" % page.path
212 msg += "Looked for: %s" % ', '.join(full_names)
213 raise Exception(msg) from ex
209 return output 214 return output
210 215
211 216
212 def get_template_engine(app, engine_name): 217 def get_template_engine(app, engine_name):
213 if engine_name == 'html': 218 if engine_name == 'html':