2013-10-04 11:41:55 +00:00
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# -*- coding: utf-8 -*-
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2013-10-07 09:15:56 +00:00
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import cStringIO
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import json
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2013-06-27 15:08:07 +00:00
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import logging
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2013-08-08 18:11:38 +00:00
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import re
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2013-06-27 14:20:22 +00:00
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2013-10-07 09:15:56 +00:00
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import Image
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2013-09-26 14:51:26 +00:00
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import werkzeug.utils
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2013-06-27 15:08:07 +00:00
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2013-06-27 14:20:22 +00:00
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import xml # FIXME use lxml
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2013-08-13 08:45:43 +00:00
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import traceback
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2013-10-07 09:15:56 +00:00
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from openerp.osv import osv, orm, fields
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2013-06-27 15:08:07 +00:00
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_logger = logging.getLogger(__name__)
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2013-06-27 09:13:29 +00:00
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2013-08-13 14:08:09 +00:00
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BUILTINS = {
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'False': False,
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'None': None,
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'True': True,
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'abs': abs,
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'bool': bool,
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'dict': dict,
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'filter': filter,
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'len': len,
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'list': list,
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'map': map,
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'max': max,
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'min': min,
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'reduce': reduce,
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'repr': repr,
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'round': round,
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'set': set,
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'str': str,
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'tuple': tuple,
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}
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2013-08-08 18:11:38 +00:00
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class QWebContext(dict):
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2013-10-04 11:41:55 +00:00
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def __init__(self, data, undefined_handler=None, loader=None):
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self.loader = loader
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self.undefined_handler = undefined_handler
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dic = BUILTINS.copy()
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dic.update(data)
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2013-09-25 12:10:28 +00:00
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super(QWebContext, self).__init__(dic)
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self['defined'] = lambda key: key in self
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def __getitem__(self, key):
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if key in self:
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return self.get(key)
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2013-08-08 18:22:18 +00:00
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elif not self.undefined_handler:
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raise NameError("QWeb: name %r is not defined while rendering template %r" % (key, self.get('__template__')))
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else:
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return self.get(key, self.undefined_handler(key, self))
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2013-10-04 11:41:55 +00:00
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def copy(self):
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return QWebContext(dict.copy(self),
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undefined_handler=self.undefined_handler,
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loader=self.loader)
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def __copy__(self):
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return self.copy()
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class QWeb(orm.AbstractModel):
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"""QWeb Xml templating engine
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2013-06-27 09:13:29 +00:00
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The templating engine use a very simple syntax, "magic" xml attributes, to
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produce any kind of texutal output (even non-xml).
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QWebXml:
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the template engine core implements the basic magic attributes:
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2013-06-27 15:08:07 +00:00
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2013-06-27 09:13:29 +00:00
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t-att t-raw t-esc t-if t-foreach t-set t-call t-trim
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2013-06-27 15:08:07 +00:00
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2013-06-27 09:13:29 +00:00
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- loader: function that return a template
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"""
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2013-10-04 11:41:55 +00:00
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2013-10-07 09:15:56 +00:00
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_name = 'ir.qweb'
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node = xml.dom.Node
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_void_elements = frozenset([
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'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
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'link', 'menuitem', 'meta', 'param', 'source', 'track', 'wbr'])
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2013-10-04 12:52:04 +00:00
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_format_regex = re.compile(
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'(?:'
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# ruby-style pattern
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'#\{(.+?)\}'
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')|(?:'
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# jinja-style pattern
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'\{\{(.+?)\}\}'
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')')
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def __init__(self, pool, cr):
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super(QWeb, self).__init__(pool, cr)
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self._t = {}
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self._render_tag = self.prefixed_methods('render_tag_')
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self._render_att = self.prefixed_methods('render_att_')
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def prefixed_methods(self, prefix):
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""" Extracts all methods prefixed by ``prefix``, and returns a mapping
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of (t-name, method) where the t-name is the method name with prefix
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removed and underscore converted to dashes
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:param str prefix:
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:return: dict
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"""
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return dict(
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(name[len(prefix):].replace('_', '-'), getattr(type(self), name))
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for name in dir(self)
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if name.startswith(prefix))
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def register_tag(self, tag, func):
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self._render_tag[tag] = func
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def load_document(self, x):
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"""
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Loads an XML document and installs any contained template in the engine
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"""
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if hasattr(x, 'documentElement'):
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dom = x
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elif x.startswith("<?xml"):
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dom = xml.dom.minidom.parseString(x)
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else:
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dom = xml.dom.minidom.parse(x)
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for n in dom.documentElement.childNodes:
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if n.nodeType == self.node.ELEMENT_NODE and n.getAttribute('t-name'):
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self._t[str(n.getAttribute("t-name"))] = n
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def get_template(self, name, context):
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if context.loader and name not in self._t:
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xml_doc = context.loader(name)
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self.load_document(xml_doc)
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if name in self._t:
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return self._t[name]
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raise KeyError('qweb: template "%s" not found' % name)
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def eval(self, expr, v):
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try:
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return eval(expr, None, v)
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2013-08-14 15:10:18 +00:00
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except (osv.except_osv, orm.except_orm), err:
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raise orm.except_orm("QWeb Error", "Invalid expression %r while rendering template '%s'.\n\n%s" % (expr, v.get('__template__'), err[1]))
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except Exception:
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raise SyntaxError("QWeb: invalid expression %r while rendering template '%s'.\n\n%s" % (expr, v.get('__template__'), traceback.format_exc()))
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def eval_object(self, expr, v):
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return self.eval(expr, v)
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def eval_str(self, expr, v):
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if expr == "0":
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return v.get(0, '')
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val = self.eval(expr, v)
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if isinstance(val, unicode):
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return val.encode("utf8")
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return str(val)
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def eval_format(self, expr, v):
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expr, replacements = self._format_regex.subn(
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lambda m: self.eval_str(m.group(1) or m.group(2), v),
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expr)
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2013-10-04 12:52:04 +00:00
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if replacements:
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return expr
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try:
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return str(expr % v)
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except:
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raise Exception("QWeb: format error '%s' " % expr)
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def eval_bool(self, expr, v):
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val = self.eval(expr, v)
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if val:
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return 1
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else:
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return 0
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def render(self, tname, v=None, out=None, loader=None, undefined_handler=None):
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if v is None:
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v = {}
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if not isinstance(v, QWebContext):
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v = QWebContext(v, undefined_handler=undefined_handler, loader=loader)
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v['__template__'] = tname
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2013-08-12 10:52:11 +00:00
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stack = v.get('__stack__', [])
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if stack:
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v['__caller__'] = stack[-1]
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stack.append(tname)
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v['__stack__'] = stack
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return self.render_node(self.get_template(tname, v), v)
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def render_node(self, e, v):
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r = ""
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if e.nodeType == self.node.TEXT_NODE or e.nodeType == self.node.CDATA_SECTION_NODE:
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r = e.data.encode("utf8")
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elif e.nodeType == self.node.ELEMENT_NODE:
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g_att = ""
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t_render = None
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t_att = {}
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for (an, av) in e.attributes.items():
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an = str(an)
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if isinstance(av, unicode):
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av = av.encode("utf8")
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else:
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av = av.nodeValue.encode("utf8")
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if an.startswith("t-"):
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for i in self._render_att:
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if an[2:].startswith(i):
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g_att += self._render_att[i](self, e, an, av, v)
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break
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else:
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if an[2:] in self._render_tag:
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t_render = an[2:]
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t_att[an[2:]] = av
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else:
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g_att += ' %s="%s"' % (an, werkzeug.utils.escape(av))
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if 'debug' in t_att:
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debugger = t_att.get('debug', 'pdb')
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__import__(debugger).set_trace() # pdb, ipdb, pudb, ...
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if t_render:
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r = self._render_tag[t_render](self, e, t_att, g_att, v)
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else:
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r = self.render_element(e, t_att, g_att, v)
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if isinstance(r, unicode):
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return r.encode('utf-8')
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return r
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def render_element(self, e, t_att, g_att, v, inner=None):
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# e: element
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# t_att: t-* attributes
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# g_att: generated attributes
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# v: values
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# inner: optional innerXml
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if inner:
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g_inner = inner
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else:
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g_inner = []
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for n in e.childNodes:
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g_inner.append(self.render_node(n, v))
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name = str(e.nodeName)
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inner = "".join(g_inner)
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trim = t_att.get("trim", 0)
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if trim == 0:
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pass
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elif trim == 'left':
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inner = inner.lstrip()
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elif trim == 'right':
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inner = inner.rstrip()
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elif trim == 'both':
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inner = inner.strip()
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if name == "t":
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return inner
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elif len(inner) or name not in self._void_elements:
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return "<%s%s>%s</%s>" % tuple(
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v if isinstance(v, str) else v.encode('utf-8')
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for v in (name, g_att, inner, name))
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else:
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return "<%s%s/>" % (name, g_att)
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# Attributes
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def render_att_att(self, e, an, av, v):
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if an.startswith("t-attf-"):
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att, val = an[7:], self.eval_format(av, v)
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elif an.startswith("t-att-"):
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att, val = an[6:], self.eval(av, v)
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if isinstance(val, unicode):
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val = val.encode("utf8")
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else:
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att, val = self.eval_object(av, v)
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return val and ' %s="%s"' % (att, werkzeug.utils.escape(val)) or " "
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def render_att_href(self, e, an, av, v):
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return self.url_for(e, an, av, v)
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def render_att_src(self, e, an, av, v):
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return self.url_for(e, an, av, v)
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def render_att_action(self, e, an, av, v):
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return self.url_for(e, an, av, v)
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def url_for(self, e, an, av, v):
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if 'url_for' not in v:
|
|
|
|
raise KeyError("qweb: no 'url_for' found in context")
|
|
|
|
path = str(v['url_for'](self.eval_format(av, v)))
|
2013-09-27 12:05:03 +00:00
|
|
|
return ' %s="%s"' % (an[2:], werkzeug.utils.escape(path))
|
2013-09-24 08:46:20 +00:00
|
|
|
|
2013-06-27 09:13:29 +00:00
|
|
|
# Tags
|
2013-06-27 15:08:07 +00:00
|
|
|
def render_tag_raw(self, e, t_att, g_att, v):
|
2013-06-30 21:35:15 +00:00
|
|
|
inner = self.eval_str(t_att["raw"], v)
|
2013-08-08 08:07:42 +00:00
|
|
|
return self.render_element(e, t_att, g_att, v, inner)
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_rawf(self, e, t_att, g_att, v):
|
2013-06-30 21:35:15 +00:00
|
|
|
inner = self.eval_format(t_att["rawf"], v)
|
2013-08-08 08:07:42 +00:00
|
|
|
return self.render_element(e, t_att, g_att, v, inner)
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_esc(self, e, t_att, g_att, v):
|
2013-09-26 14:51:26 +00:00
|
|
|
inner = werkzeug.utils.escape(self.eval_str(t_att["esc"], v))
|
2013-08-08 08:07:42 +00:00
|
|
|
return self.render_element(e, t_att, g_att, v, inner)
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_escf(self, e, t_att, g_att, v):
|
2013-09-26 14:51:26 +00:00
|
|
|
inner = werkzeug.utils.escape(self.eval_format(t_att["escf"], v))
|
2013-08-08 08:07:42 +00:00
|
|
|
return self.render_element(e, t_att, g_att, v, inner)
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_foreach(self, e, t_att, g_att, v):
|
|
|
|
expr = t_att["foreach"]
|
|
|
|
enum = self.eval_object(expr, v)
|
|
|
|
if enum is not None:
|
|
|
|
var = t_att.get('as', expr).replace('.', '_')
|
2013-10-04 11:41:55 +00:00
|
|
|
d = v.copy()
|
2013-06-27 15:08:07 +00:00
|
|
|
size = -1
|
2013-09-10 13:44:02 +00:00
|
|
|
if isinstance(enum, (list, tuple)):
|
2013-06-27 15:08:07 +00:00
|
|
|
size = len(enum)
|
|
|
|
elif hasattr(enum, 'count'):
|
|
|
|
size = enum.count()
|
|
|
|
d["%s_size" % var] = size
|
|
|
|
d["%s_all" % var] = enum
|
|
|
|
index = 0
|
|
|
|
ru = []
|
2013-06-27 09:13:29 +00:00
|
|
|
for i in enum:
|
2013-06-27 15:08:07 +00:00
|
|
|
d["%s_value" % var] = i
|
|
|
|
d["%s_index" % var] = index
|
|
|
|
d["%s_first" % var] = index == 0
|
|
|
|
d["%s_even" % var] = index % 2
|
|
|
|
d["%s_odd" % var] = (index + 1) % 2
|
|
|
|
d["%s_last" % var] = index + 1 == size
|
|
|
|
if index % 2:
|
|
|
|
d["%s_parity" % var] = 'odd'
|
2013-06-27 09:13:29 +00:00
|
|
|
else:
|
2013-06-27 15:08:07 +00:00
|
|
|
d["%s_parity" % var] = 'even'
|
2013-08-21 14:09:10 +00:00
|
|
|
if 'as' in t_att:
|
2013-06-27 15:08:07 +00:00
|
|
|
d[var] = i
|
2013-09-10 13:44:02 +00:00
|
|
|
elif isinstance(i, dict):
|
2013-08-21 14:09:10 +00:00
|
|
|
d.update(i)
|
2013-06-30 21:35:15 +00:00
|
|
|
ru.append(self.render_element(e, t_att, g_att, d))
|
2013-06-27 15:08:07 +00:00
|
|
|
index += 1
|
2013-06-27 09:13:29 +00:00
|
|
|
return "".join(ru)
|
|
|
|
else:
|
2013-08-21 14:09:10 +00:00
|
|
|
raise NameError("QWeb: foreach enumerator %r is not defined while rendering template %r" % (expr, v.get('__template__')))
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_if(self, e, t_att, g_att, v):
|
|
|
|
if self.eval_bool(t_att["if"], v):
|
2013-06-30 21:35:15 +00:00
|
|
|
return self.render_element(e, t_att, g_att, v)
|
2013-06-27 09:13:29 +00:00
|
|
|
else:
|
|
|
|
return ""
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_call(self, e, t_att, g_att, v):
|
2013-10-04 11:41:55 +00:00
|
|
|
d = v if 'import' in t_att else v.copy()
|
2013-06-30 21:35:15 +00:00
|
|
|
d[0] = self.render_element(e, t_att, g_att, d)
|
2013-10-04 11:41:55 +00:00
|
|
|
|
2013-08-21 15:35:07 +00:00
|
|
|
return self.render(self.eval_format(t_att["call"], d), d)
|
2013-06-27 15:08:07 +00:00
|
|
|
|
|
|
|
def render_tag_set(self, e, t_att, g_att, v):
|
2013-07-02 12:00:18 +00:00
|
|
|
if "value" in t_att:
|
|
|
|
v[t_att["set"]] = self.eval_object(t_att["value"], v)
|
2013-08-08 22:39:38 +00:00
|
|
|
elif "valuef" in t_att:
|
|
|
|
v[t_att["set"]] = self.eval_format(t_att["valuef"], v)
|
2013-06-27 09:13:29 +00:00
|
|
|
else:
|
2013-06-30 21:35:15 +00:00
|
|
|
v[t_att["set"]] = self.render_element(e, t_att, g_att, v)
|
2013-06-27 09:13:29 +00:00
|
|
|
return ""
|
2013-06-30 21:35:15 +00:00
|
|
|
|
2013-07-01 15:55:41 +00:00
|
|
|
def render_tag_field(self, e, t_att, g_att, v):
|
|
|
|
""" eg: <span t-record="browse_record(res.partner, 1)" t-field="phone">+1 555 555 8069</span>"""
|
2013-09-17 11:30:22 +00:00
|
|
|
node_name = e.nodeName
|
2013-09-27 12:45:23 +00:00
|
|
|
assert node_name not in ("table", "tbody", "thead", "tfoot", "tr", "td",
|
|
|
|
"ol", "ul", "ol", "dl", "dt", "dd"),\
|
2013-09-17 11:30:22 +00:00
|
|
|
"RTE widgets do not work correctly on %r elements" % node_name
|
2013-09-25 12:10:28 +00:00
|
|
|
assert node_name != 't',\
|
|
|
|
"t-field can not be used on a t element, provide an actual HTML node"
|
2013-08-04 20:23:31 +00:00
|
|
|
|
2013-10-07 09:15:56 +00:00
|
|
|
record, field_name = t_att["field"].rsplit('.', 1)
|
2013-08-04 20:27:20 +00:00
|
|
|
record = self.eval_object(record, v)
|
2013-07-01 15:55:41 +00:00
|
|
|
|
2013-10-07 09:15:56 +00:00
|
|
|
column = record._model._all_columns[field_name].column
|
|
|
|
options = json.loads(t_att.get('field-options') or '{}')
|
|
|
|
field_type = get_field_type(column, options)
|
2013-09-26 14:51:26 +00:00
|
|
|
|
2013-10-07 09:15:56 +00:00
|
|
|
converter = self.pool.get('ir.qweb.field.' + field_type,
|
|
|
|
self.pool['ir.qweb.field'])
|
2013-09-26 14:51:26 +00:00
|
|
|
|
2013-10-07 09:15:56 +00:00
|
|
|
return converter.to_html(record._cr, record._uid, field_name, record, options,
|
|
|
|
e, t_att, g_att, v)
|
|
|
|
|
|
|
|
|
|
|
|
class FieldConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def attributes(self, cr, uid, field_name, record, options,
|
|
|
|
source_element, g_att, t_att, qweb_context):
|
|
|
|
column = record._model._all_columns[field_name].column
|
|
|
|
field_type = get_field_type(column, options)
|
|
|
|
return [
|
|
|
|
('data-oe-model', record._model._name),
|
|
|
|
('data-oe-id', record.id),
|
|
|
|
('data-oe-field', field_name),
|
|
|
|
('data-oe-type', field_type),
|
|
|
|
('data-oe-translate', '1' if column.translate else '0'),
|
|
|
|
('data-oe-expression', t_att['field']),
|
|
|
|
]
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
""" Converts a single value to its HTML version/output
|
|
|
|
"""
|
|
|
|
return werkzeug.utils.escape(value)
|
|
|
|
|
|
|
|
def record_to_html(self, cr, uid, field_name, record, column, options=None):
|
|
|
|
""" Converts the specified field of a ``record`` to HTML
|
|
|
|
"""
|
|
|
|
return self.value_to_html(
|
|
|
|
cr, uid, record[field_name], column, options=None)
|
|
|
|
|
|
|
|
def to_html(self, cr, uid, field_name, record, options,
|
|
|
|
source_element, t_att, g_att, qweb_context):
|
|
|
|
""" Converts a ``t-field[t-field-options]?`` to its HTML output
|
|
|
|
"""
|
2013-09-26 14:51:26 +00:00
|
|
|
content = None
|
2013-07-02 16:48:05 +00:00
|
|
|
try:
|
2013-10-07 09:15:56 +00:00
|
|
|
content = self.record_to_html(
|
|
|
|
cr, uid, field_name, record,
|
|
|
|
record._model._all_columns[field_name].column,
|
|
|
|
options)
|
2013-09-26 14:51:26 +00:00
|
|
|
except KeyError:
|
2013-10-07 09:15:56 +00:00
|
|
|
_logger.warning("t-field no field %s for model %s", field_name, record._model._name)
|
2013-07-01 15:55:41 +00:00
|
|
|
|
2013-09-26 14:51:26 +00:00
|
|
|
g_att += ''.join(
|
|
|
|
' %s="%s"' % (name, werkzeug.utils.escape(value))
|
2013-10-07 09:15:56 +00:00
|
|
|
for name, value in self.attributes(
|
|
|
|
cr, uid, field_name, record, options,
|
|
|
|
source_element, g_att, t_att, qweb_context)
|
2013-09-26 14:51:26 +00:00
|
|
|
)
|
|
|
|
|
2013-10-07 09:15:56 +00:00
|
|
|
return self.render_element(cr, uid, source_element, t_att, g_att,
|
|
|
|
qweb_context, content)
|
|
|
|
|
|
|
|
def render_element(self, cr, uid, source_element, t_att, g_att, qweb_context, content):
|
|
|
|
return self.pool['ir.qweb'].render_element(
|
|
|
|
source_element, t_att, g_att, qweb_context, content or '')
|
|
|
|
|
|
|
|
class FloatConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.float'
|
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
width, precision = column.digits or (None, None)
|
|
|
|
fmt = '{value}' if precision is None else '{value:.{precision}f}'
|
|
|
|
|
|
|
|
return werkzeug.utils.escape(
|
|
|
|
fmt.format(value=value, width=width, precision=precision, ))
|
|
|
|
|
|
|
|
class TextConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.text'
|
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
"""
|
|
|
|
Escapes the value and converts newlines to br. This is bullshit.
|
|
|
|
"""
|
|
|
|
return werkzeug.utils.escape(value).replace('\n', '<br>\n')
|
|
|
|
|
|
|
|
class SelectionConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.selection'
|
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def record_to_html(self, cr, uid, field_name, record, column, options=None):
|
|
|
|
# FIXME: context
|
|
|
|
value = record[field_name]
|
|
|
|
selection = dict(fields.selection.reify(
|
|
|
|
cr, uid, record._model, column))
|
|
|
|
return self.value_to_html(
|
|
|
|
cr, uid, selection[value], column, options=options)
|
|
|
|
|
|
|
|
class ManyToOneConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.many2one'
|
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
return werkzeug.utils.escape(value.name_get()[0][1]).replace('\n', '<br>\n')
|
|
|
|
|
|
|
|
class HTMLConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.html'
|
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
return value
|
|
|
|
|
2013-10-07 11:31:33 +00:00
|
|
|
class ImageConverter(osv.AbstractModel):
|
|
|
|
_name = 'ir.qweb.field.image'
|
2013-10-07 09:15:56 +00:00
|
|
|
_inherit = 'ir.qweb.field'
|
|
|
|
|
|
|
|
def value_to_html(self, cr, uid, value, column, options=None):
|
|
|
|
try:
|
|
|
|
image = Image.open(cStringIO.StringIO(value.decode('base64')))
|
2013-10-07 11:31:33 +00:00
|
|
|
image.verify()
|
2013-10-07 09:15:56 +00:00
|
|
|
except IOError:
|
|
|
|
raise ValueError("Non-image binary fields can not be converted to HTML")
|
|
|
|
except: # no idea what "suitable exceptions" are
|
|
|
|
raise ValueError("Invalid image content")
|
|
|
|
|
2013-10-07 11:31:33 +00:00
|
|
|
return '<img src="data:%s;base64,%s">' % (Image.MIME[image.format], value)
|
2013-10-07 09:15:56 +00:00
|
|
|
|
|
|
|
def get_field_type(column, options):
|
|
|
|
""" Gets a t-field's effective type from the field's column and its options
|
|
|
|
"""
|
|
|
|
return options.get('widget', column._type)
|
2013-07-01 15:55:41 +00:00
|
|
|
|
2013-06-30 21:35:15 +00:00
|
|
|
# leave this, al.
|