shortcuts.py 文件源码

def render_to_string(request, result, default_template, prefix=None, template_ext='html'):
    templates = [default_template]
    dictionary = None

    # ????
    # {'var': value ...}
    if isinstance(result, dict):
        dictionary = result

    # 'template' or '/root_template'
    elif isinstance(result, basestring):
        templates = [result]

    # 'template1', 'template2' ...
    # 'template', {'var': value ...}
    # 'template1', 'template2', ... {'var': value ...}
    elif isinstance(result, tuple):
        # ?????????
        if isinstance(result[-1], dict):
            templates = list(result[:-1])
            dictionary = result[-1]
        else:
            templates = list(result)

    if getattr(request, 'is_mobile', False):
        templates = [t + '.mobile' for t in templates] + templates

    for i in xrange(0, len(templates)):
        if templates[i].startswith('/'):
            templates[i] = templates[i][1:]
        elif prefix:
            templates[i] = prefix + templates[i]
        templates[i] += '.' + template_ext

    return _render_to_string(templates, dictionary, RequestContext(request))