def generate_summary(self, nchars=200):
'''提出摘要, 最终返回以HTML片段. 代表插图 + 前N个文字'''
orig_html = pq(self.html_content)
# 优先提取带有 cover 类的图片作为封面
cover = orig_html('img.cover:first') or orig_html('img:first')
if cover:
try:
# 清楚来自图片上传插件(ckeditor)自动添加的属性
cover.removeAttr('style').removeAttr('width').removeAttr(
'height')
except KeyError:
pass
cover.addClass('cover')
orig_src = cover.attr('src')
# 如果是本地图片, 则封面img标签使用django-filebrowser生成的缩略图
if orig_src.startswith(settings.MEDIA_URL):
print "更新封面"
relative_path = orig_src.replace(settings.MEDIA_URL, '')
if relative_path.startswith(
settings.FILEBROWSER_VERSIONS_BASEDIR):
# 如果已经引用的是FileBrowser生成的小尺寸图片,
# 则试图推导出原图路径, 并根据原图生成缩略图.
relative_path = re.sub(
r'^%s' % settings.FILEBROWSER_VERSIONS_BASEDIR,
settings.FILEBROWSER_DIRECTORY, relative_path)
# FileBrowser生成图片的后缀模式:
postfix_pat = '|'.join(
['_' + i for i in settings.FILEBROWSER_ADMIN_VERSIONS])
relative_path = re.sub(r'(%s)\.' % postfix_pat, '.',
relative_path)
fileobject = FileObject(relative_path)
if fileobject.exists():
fileobject = fileobject.original
thumbnail = fileobject.version_generate('thumbnail')
cover.attr('src',
thumbnail.url).attr('data-orig-src', orig_src)
cover.css(height='100px', width='100px')
else:
print u'引用的图片不存在: %s' % fileobject.path
summary_text = cgi.escape(orig_html.text()[:int(nchars)])
return (cover.outerHtml() or "") + \
(u'<span class="summary-text">%s...</span>' % summary_text) + \
(u'<a class="more" href="/%d/">阅读全文→</a>' % self.id) + \
u'<div class="clear"></div>'
def generate_summary(self, nchars=200):
'''提出摘要, 最终返回以HTML片段. 代表插图 + 前N个文字'''
orig_html = pq(self.html_content)
# 优先提取带有 cover 类的图片作为封面
cover = orig_html('img.cover:first') or orig_html('img:first')
if cover:
try:
# 清楚来自图片上传插件(ckeditor)自动添加的属性
cover.removeAttr('style').removeAttr('width').removeAttr('height')
except KeyError:
pass
cover.addClass('cover')
orig_src = cover.attr('src')
# 如果是本地图片, 则封面img标签使用django-filebrowser生成的缩略图
if orig_src.startswith(settings.MEDIA_URL):
print "更新封面"
relative_path = orig_src.replace(settings.MEDIA_URL, '')
if relative_path.startswith(settings.FILEBROWSER_VERSIONS_BASEDIR):
# 如果已经引用的是FileBrowser生成的小尺寸图片,
# 则试图推导出原图路径, 并根据原图生成缩略图.
relative_path = re.sub(r'^%s' % settings.FILEBROWSER_VERSIONS_BASEDIR,
settings.FILEBROWSER_DIRECTORY, relative_path)
# FileBrowser生成图片的后缀模式:
postfix_pat = '|'.join(['_'+i for i in settings.FILEBROWSER_ADMIN_VERSIONS])
relative_path = re.sub(r'(%s)\.' % postfix_pat, '.', relative_path)
fileobject = FileObject(relative_path)
if fileobject.exists():
fileobject = fileobject.original
thumbnail = fileobject.version_generate('thumbnail')
cover.attr('src', thumbnail.url).attr('data-orig-src', orig_src)
cover.css(height='100px', width='100px')
else:
print u'引用的图片不存在: %s' % fileobject.path
summary_text = cgi.escape(orig_html.text()[:int(nchars)])
return (cover.outerHtml() or "") + \
(u'<span class="summary-text">%s...</span>' % summary_text) + \
(u'<a class="more" href="/%d/">阅读全文→</a>' % self.id) + \
u'<div class="clear"></div>'
