odoo/openerp/addons/base/ir/ir_qweb.py

887 lines
35 KiB
Python

# -*- coding: utf-8 -*-
import collections
import cStringIO
import datetime
import json
import logging
import math
import re
import sys
import xml # FIXME use lxml and etree
import babel
import babel.dates
import werkzeug.utils
from PIL import Image
import openerp.tools
from openerp.tools.safe_eval import safe_eval as eval
from openerp.osv import osv, orm, fields
from openerp.tools.translate import _
_logger = logging.getLogger(__name__)
#--------------------------------------------------------------------
# QWeb template engine
#--------------------------------------------------------------------
class QWebException(Exception):
def __init__(self, message, **kw):
Exception.__init__(self, message)
self.qweb = dict(kw)
class QWebTemplateNotFound(QWebException):
pass
def raise_qweb_exception(etype=None, **kw):
if etype is None:
etype = QWebException
orig_type, original, tb = sys.exc_info()
try:
raise etype, original, tb
except etype, e:
for k, v in kw.items():
e.qweb[k] = v
# Will use `raise foo from bar` in python 3 and rename cause to __cause__
e.qweb['cause'] = original
raise
class QWebContext(dict):
def __init__(self, cr, uid, data, loader=None, templates=None, context=None):
self.cr = cr
self.uid = uid
self.loader = loader
self.templates = templates or {}
self.context = context
dic = dict(data)
super(QWebContext, self).__init__(dic)
self['defined'] = lambda key: key in self
def safe_eval(self, expr):
locals_dict = collections.defaultdict(lambda: None)
locals_dict.update(self)
locals_dict.pop('cr', None)
locals_dict.pop('loader', None)
return eval(expr, None, locals_dict, nocopy=True, locals_builtins=True)
def copy(self):
return QWebContext(self.cr, self.uid, dict.copy(self),
loader=self.loader,
templates=self.templates,
context=self.context)
def __copy__(self):
return self.copy()
class QWeb(orm.AbstractModel):
"""QWeb Xml templating engine
The templating engine use a very simple syntax based "magic" xml
attributes, to produce textual output (even non-xml).
The core magic attributes are:
flow attributes:
t-if t-foreach t-call
output attributes:
t-att t-raw t-esc t-trim
assignation attribute:
t-set
QWeb can be extended like any OpenERP model and new attributes can be
added.
If you need to customize t-fields rendering, subclass the ir.qweb.field
model (and its sub-models) then override :meth:`~.get_converter_for` to
fetch the right field converters for your qweb model.
Beware that if you need extensions or alterations which could be
incompatible with other subsystems, you should create a local object
inheriting from ``ir.qweb`` and customize that.
"""
_name = 'ir.qweb'
node = xml.dom.Node
_void_elements = frozenset([
'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
'link', 'menuitem', 'meta', 'param', 'source', 'track', 'wbr'])
_format_regex = re.compile(
'(?:'
# ruby-style pattern
'#\{(.+?)\}'
')|(?:'
# jinja-style pattern
'\{\{(.+?)\}\}'
')')
def __init__(self, pool, cr):
super(QWeb, self).__init__(pool, cr)
self._render_tag = self.prefixed_methods('render_tag_')
self._render_att = self.prefixed_methods('render_att_')
def prefixed_methods(self, prefix):
""" Extracts all methods prefixed by ``prefix``, and returns a mapping
of (t-name, method) where the t-name is the method name with prefix
removed and underscore converted to dashes
:param str prefix:
:return: dict
"""
n_prefix = len(prefix)
return dict(
(name[n_prefix:].replace('_', '-'), getattr(type(self), name))
for name in dir(self)
if name.startswith(prefix)
)
def register_tag(self, tag, func):
self._render_tag[tag] = func
def add_template(self, qwebcontext, name, node):
"""Add a parsed template in the context. Used to preprocess templates."""
qwebcontext.templates[name] = node
def load_document(self, document, qwebcontext):
"""
Loads an XML document and installs any contained template in the engine
"""
if hasattr(document, 'documentElement'):
dom = document
elif document.startswith("<?xml"):
dom = xml.dom.minidom.parseString(document)
else:
dom = xml.dom.minidom.parse(document)
for node in dom.documentElement.childNodes:
if node.nodeType == self.node.ELEMENT_NODE and node.getAttribute('t-name'):
name = str(node.getAttribute("t-name"))
self.add_template(qwebcontext, name, node)
def get_template(self, name, qwebcontext):
origin_template = qwebcontext.get('__caller__') or qwebcontext['__stack__'][0]
if qwebcontext.loader and name not in qwebcontext.templates:
try:
xml_doc = qwebcontext.loader(name)
except ValueError:
raise_qweb_exception(QWebTemplateNotFound, message="Loader could not find template %r" % name, template=origin_template)
self.load_document(xml_doc, qwebcontext=qwebcontext)
if name in qwebcontext.templates:
return qwebcontext.templates[name]
raise QWebTemplateNotFound("Template %r not found" % name, template=origin_template)
def eval(self, expr, qwebcontext):
try:
return qwebcontext.safe_eval(expr)
except Exception:
template = qwebcontext.get('__template__')
raise_qweb_exception(message="Could not evaluate expression %r" % expr, expression=expr, template=template)
def eval_object(self, expr, qwebcontext):
return self.eval(expr, qwebcontext)
def eval_str(self, expr, qwebcontext):
if expr == "0":
return qwebcontext.get(0, '')
val = self.eval(expr, qwebcontext)
if isinstance(val, unicode):
return val.encode("utf8")
if val is False or val is None:
return ''
return str(val)
def eval_format(self, expr, qwebcontext):
expr, replacements = self._format_regex.subn(
lambda m: self.eval_str(m.group(1) or m.group(2), qwebcontext),
expr
)
if replacements:
return expr
try:
return str(expr % qwebcontext)
except Exception:
template = qwebcontext.get('__template__')
raise_qweb_exception(message="Format error for expression %r" % expr, expression=expr, template=template)
def eval_bool(self, expr, qwebcontext):
return int(bool(self.eval(expr, qwebcontext)))
def render(self, cr, uid, id_or_xml_id, qwebcontext=None, loader=None, context=None):
if qwebcontext is None:
qwebcontext = {}
if not isinstance(qwebcontext, QWebContext):
qwebcontext = QWebContext(cr, uid, qwebcontext, loader=loader, context=context)
qwebcontext['__template__'] = id_or_xml_id
stack = qwebcontext.get('__stack__', [])
if stack:
qwebcontext['__caller__'] = stack[-1]
stack.append(id_or_xml_id)
qwebcontext['__stack__'] = stack
qwebcontext['xmlid'] = str(stack[0]) # Temporary fix
return self.render_node(self.get_template(id_or_xml_id, qwebcontext), qwebcontext)
def render_node(self, element, qwebcontext):
result = ""
if element.nodeType == self.node.TEXT_NODE or element.nodeType == self.node.CDATA_SECTION_NODE:
result = element.data.encode("utf8")
elif element.nodeType == self.node.ELEMENT_NODE:
generated_attributes = ""
t_render = None
template_attributes = {}
for (attribute_name, attribute_value) in element.attributes.items():
attribute_name = str(attribute_name)
if attribute_name == "groups":
cr = qwebcontext.get('request') and qwebcontext['request'].cr or None
uid = qwebcontext.get('request') and qwebcontext['request'].uid or None
can_see = self.user_has_groups(cr, uid, groups=attribute_value)
if not can_see:
return ''
continue
if isinstance(attribute_value, unicode):
attribute_value = attribute_value.encode("utf8")
else:
attribute_value = attribute_value.nodeValue.encode("utf8")
if attribute_name.startswith("t-"):
for attribute in self._render_att:
if attribute_name[2:].startswith(attribute):
att, val = self._render_att[attribute](self, element, attribute_name, attribute_value, qwebcontext)
generated_attributes += val and ' %s="%s"' % (att, werkzeug.utils.escape(val)) or " "
break
else:
if attribute_name[2:] in self._render_tag:
t_render = attribute_name[2:]
template_attributes[attribute_name[2:]] = attribute_value
else:
generated_attributes += ' %s="%s"' % (attribute_name, werkzeug.utils.escape(attribute_value))
if 'debug' in template_attributes:
debugger = template_attributes.get('debug', 'pdb')
__import__(debugger).set_trace() # pdb, ipdb, pudb, ...
if t_render:
result = self._render_tag[t_render](self, element, template_attributes, generated_attributes, qwebcontext)
else:
result = self.render_element(element, template_attributes, generated_attributes, qwebcontext)
if isinstance(result, unicode):
return result.encode('utf-8')
return result
def render_element(self, element, template_attributes, generated_attributes, qwebcontext, inner=None):
# element: element
# template_attributes: t-* attributes
# generated_attributes: generated attributes
# qwebcontext: values
# inner: optional innerXml
if inner:
g_inner = inner
else:
g_inner = []
for current_node in element.childNodes:
try:
g_inner.append(self.render_node(current_node, qwebcontext))
except QWebException:
raise
except Exception:
template = qwebcontext.get('__template__')
raise_qweb_exception(message="Could not render element %r" % element.nodeName, node=element, template=template)
name = str(element.nodeName)
inner = "".join(g_inner)
trim = template_attributes.get("trim", 0)
if trim == 0:
pass
elif trim == 'left':
inner = inner.lstrip()
elif trim == 'right':
inner = inner.rstrip()
elif trim == 'both':
inner = inner.strip()
if name == "t":
return inner
elif len(inner) or name not in self._void_elements:
return "<%s%s>%s</%s>" % tuple(
qwebcontext if isinstance(qwebcontext, str) else qwebcontext.encode('utf-8')
for qwebcontext in (name, generated_attributes, inner, name)
)
else:
return "<%s%s/>" % (name, generated_attributes)
# Attributes
def render_att_att(self, element, attribute_name, attribute_value, qwebcontext):
if attribute_name.startswith("t-attf-"):
att, val = attribute_name[7:], self.eval_format(attribute_value, qwebcontext)
elif attribute_name.startswith("t-att-"):
att, val = attribute_name[6:], self.eval(attribute_value, qwebcontext)
if isinstance(val, unicode):
val = val.encode("utf8")
else:
att, val = self.eval_object(attribute_value, qwebcontext)
return att, val
# Tags
def render_tag_raw(self, element, template_attributes, generated_attributes, qwebcontext):
inner = self.eval_str(template_attributes["raw"], qwebcontext)
return self.render_element(element, template_attributes, generated_attributes, qwebcontext, inner)
def render_tag_esc(self, element, template_attributes, generated_attributes, qwebcontext):
inner = werkzeug.utils.escape(self.eval_str(template_attributes["esc"], qwebcontext))
return self.render_element(element, template_attributes, generated_attributes, qwebcontext, inner)
def render_tag_foreach(self, element, template_attributes, generated_attributes, qwebcontext):
expr = template_attributes["foreach"]
enum = self.eval_object(expr, qwebcontext)
if enum is not None:
var = template_attributes.get('as', expr).replace('.', '_')
copy_qwebcontext = qwebcontext.copy()
size = -1
if isinstance(enum, (list, tuple)):
size = len(enum)
elif hasattr(enum, 'count'):
size = enum.count()
copy_qwebcontext["%s_size" % var] = size
copy_qwebcontext["%s_all" % var] = enum
index = 0
ru = []
for i in enum:
copy_qwebcontext["%s_value" % var] = i
copy_qwebcontext["%s_index" % var] = index
copy_qwebcontext["%s_first" % var] = index == 0
copy_qwebcontext["%s_even" % var] = index % 2
copy_qwebcontext["%s_odd" % var] = (index + 1) % 2
copy_qwebcontext["%s_last" % var] = index + 1 == size
if index % 2:
copy_qwebcontext["%s_parity" % var] = 'odd'
else:
copy_qwebcontext["%s_parity" % var] = 'even'
if 'as' in template_attributes:
copy_qwebcontext[var] = i
elif isinstance(i, dict):
copy_qwebcontext.update(i)
ru.append(self.render_element(element, template_attributes, generated_attributes, copy_qwebcontext))
index += 1
return "".join(ru)
else:
template = qwebcontext.get('__template__')
raise QWebException("foreach enumerator %r is not defined while rendering template %r" % (expr, template), template=template)
def render_tag_if(self, element, template_attributes, generated_attributes, qwebcontext):
if self.eval_bool(template_attributes["if"], qwebcontext):
return self.render_element(element, template_attributes, generated_attributes, qwebcontext)
return ""
def render_tag_call(self, element, template_attributes, generated_attributes, qwebcontext):
d = qwebcontext.copy()
d[0] = self.render_element(element, template_attributes, generated_attributes, d)
cr = d.get('request') and d['request'].cr or None
uid = d.get('request') and d['request'].uid or None
return self.render(cr, uid, self.eval_format(template_attributes["call"], d), d)
def render_tag_set(self, element, template_attributes, generated_attributes, qwebcontext):
if "value" in template_attributes:
qwebcontext[template_attributes["set"]] = self.eval_object(template_attributes["value"], qwebcontext)
elif "valuef" in template_attributes:
qwebcontext[template_attributes["set"]] = self.eval_format(template_attributes["valuef"], qwebcontext)
else:
qwebcontext[template_attributes["set"]] = self.render_element(element, template_attributes, generated_attributes, qwebcontext)
return ""
def render_tag_field(self, element, template_attributes, generated_attributes, qwebcontext):
""" eg: <span t-record="browse_record(res.partner, 1)" t-field="phone">+1 555 555 8069</span>"""
node_name = element.nodeName
assert node_name not in ("table", "tbody", "thead", "tfoot", "tr", "td",
"li", "ul", "ol", "dl", "dt", "dd"),\
"RTE widgets do not work correctly on %r elements" % node_name
assert node_name != 't',\
"t-field can not be used on a t element, provide an actual HTML node"
record, field_name = template_attributes["field"].rsplit('.', 1)
record = self.eval_object(record, qwebcontext)
column = record._model._all_columns[field_name].column
options = json.loads(template_attributes.get('field-options') or '{}')
field_type = get_field_type(column, options)
converter = self.get_converter_for(field_type)
return converter.to_html(qwebcontext.cr, qwebcontext.uid, field_name, record, options,
element, template_attributes, generated_attributes, qwebcontext, context=qwebcontext.context)
def get_converter_for(self, field_type):
return self.pool.get('ir.qweb.field.' + field_type,
self.pool['ir.qweb.field'])
#--------------------------------------------------------------------
# QWeb Fields converters
#--------------------------------------------------------------------
class FieldConverter(osv.AbstractModel):
""" Used to convert a t-field specification into an output HTML field.
:meth:`~.to_html` is the entry point of this conversion from QWeb, it:
* converts the record value to html using :meth:`~.record_to_html`
* generates the metadata attributes (``data-oe-``) to set on the root
result node
* generates the root result node itself through :meth:`~.render_element`
"""
_name = 'ir.qweb.field'
def attributes(self, cr, uid, field_name, record, options,
source_element, g_att, t_att, qweb_context,
context=None):
"""
Generates the metadata attributes (prefixed by ``data-oe-`` for the
root node of the field conversion. Attribute values are escaped by the
parent using ``werkzeug.utils.escape``.
The default attributes are:
* ``model``, the name of the record's model
* ``id`` the id of the record to which the field belongs
* ``field`` the name of the converted field
* ``type`` the logical field type (widget, may not match the column's
``type``, may not be any _column subclass name)
* ``translate``, a boolean flag (``0`` or ``1``) denoting whether the
column is translatable
* ``expression``, the original expression
:returns: iterable of (attribute name, attribute value) pairs.
"""
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-expression', t_att['field']),
]
def value_to_html(self, cr, uid, value, column, options=None, context=None):
""" Converts a single value to its HTML version/output
"""
if not value: return ''
return value
def record_to_html(self, cr, uid, field_name, record, column, options=None, context=None):
""" Converts the specified field of the browse_record ``record`` to
HTML
"""
return self.value_to_html(
cr, uid, record[field_name], column, options=options, context=context)
def to_html(self, cr, uid, field_name, record, options,
source_element, t_att, g_att, qweb_context, context=None):
""" Converts a ``t-field`` to its HTML output. A ``t-field`` may be
extended by a ``t-field-options``, which is a JSON-serialized mapping
of configuration values.
A default configuration key is ``widget`` which can override the
field's own ``_type``.
"""
try:
content = self.record_to_html(
cr, uid, field_name, record,
record._model._all_columns[field_name].column,
options, context=context)
if options.get('html-escape', True):
content = werkzeug.utils.escape(content)
elif hasattr(content, '__html__'):
content = content.__html__()
except Exception:
_logger.warning("Could not get field %s for model %s",
field_name, record._model._name, exc_info=True)
content = None
if context and context.get('inherit_branding'):
# add branding attributes
g_att += ''.join(
' %s="%s"' % (name, werkzeug.utils.escape(value))
for name, value in self.attributes(
cr, uid, field_name, record, options,
source_element, g_att, t_att, qweb_context)
)
return self.render_element(cr, uid, source_element, t_att, g_att,
qweb_context, content)
def qweb_object(self):
return self.pool['ir.qweb']
def render_element(self, cr, uid, source_element, t_att, g_att,
qweb_context, content):
""" Final rendering hook, by default just calls ir.qweb's ``render_element``
"""
return self.qweb_object().render_element(
source_element, t_att, g_att, qweb_context, content or '')
def user_lang(self, cr, uid, context):
"""
Fetches the res.lang object corresponding to the language code stored
in the user's context. Fallbacks to en_US if no lang is present in the
context *or the language code is not valid*.
:returns: res.lang browse_record
"""
if context is None: context = {}
lang_code = context.get('lang') or 'en_US'
Lang = self.pool['res.lang']
lang_ids = Lang.search(cr, uid, [('code', '=', lang_code)], context=context) \
or Lang.search(cr, uid, [('code', '=', 'en_US')], context=context)
return Lang.browse(cr, uid, lang_ids[0], context=context)
class FloatConverter(osv.AbstractModel):
_name = 'ir.qweb.field.float'
_inherit = 'ir.qweb.field'
def precision(self, cr, uid, column, options=None, context=None):
_, precision = column.digits or (None, None)
return precision
def value_to_html(self, cr, uid, value, column, options=None, context=None):
if context is None:
context = {}
precision = self.precision(cr, uid, column, options=options, context=context)
fmt = '%f' if precision is None else '%.{precision}f'
lang_code = context.get('lang') or 'en_US'
lang = self.pool['res.lang']
formatted = lang.format(cr, uid, [lang_code], fmt.format(precision=precision), value, grouping=True)
# %f does not strip trailing zeroes. %g does but its precision causes
# it to switch to scientific notation starting at a million *and* to
# strip decimals. So use %f and if no precision was specified manually
# strip trailing 0.
if not precision:
formatted = re.sub(r'(?:(0|\d+?)0+)$', r'\1', formatted)
return formatted
class DateConverter(osv.AbstractModel):
_name = 'ir.qweb.field.date'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
if not value: return ''
lang = self.user_lang(cr, uid, context=context)
locale = babel.Locale.parse(lang.code)
if isinstance(value, basestring):
value = datetime.datetime.strptime(
value, openerp.tools.DEFAULT_SERVER_DATE_FORMAT)
if options and 'format' in options:
pattern = options['format']
else:
strftime_pattern = lang.date_format
pattern = openerp.tools.posix_to_ldml(strftime_pattern, locale=locale)
return babel.dates.format_datetime(
value, format=pattern,
locale=locale)
class DateTimeConverter(osv.AbstractModel):
_name = 'ir.qweb.field.datetime'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
if not value: return ''
lang = self.user_lang(cr, uid, context=context)
locale = babel.Locale.parse(lang.code)
if isinstance(value, basestring):
value = datetime.datetime.strptime(
value, openerp.tools.DEFAULT_SERVER_DATETIME_FORMAT)
value = fields.datetime.context_timestamp(
cr, uid, timestamp=value, context=context)
if options and 'format' in options:
pattern = options['format']
else:
strftime_pattern = (u"%s %s" % (lang.date_format, lang.time_format))
pattern = openerp.tools.posix_to_ldml(strftime_pattern, locale=locale)
if options and options.get('hide_seconds'):
pattern = pattern.replace(":ss", "").replace(":s", "")
return babel.dates.format_datetime(value, format=pattern, locale=locale)
class TextConverter(osv.AbstractModel):
_name = 'ir.qweb.field.text'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
"""
Escapes the value and converts newlines to br. This is bullshit.
"""
if not value: return ''
return nl2br(value, options=options)
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, context=None):
value = record[field_name]
if not value: return ''
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 record_to_html(self, cr, uid, field_name, record, column, options=None, context=None):
[read] = record.read([field_name])
if not read[field_name]: return ''
_, value = read[field_name]
return nl2br(value, options=options)
class HTMLConverter(osv.AbstractModel):
_name = 'ir.qweb.field.html'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
return HTMLSafe(value or '')
class ImageConverter(osv.AbstractModel):
""" ``image`` widget rendering, inserts a data:uri-using image tag in the
document. May be overridden by e.g. the website module to generate links
instead.
.. todo:: what happens if different output need different converters? e.g.
reports may need embedded images or FS links whereas website
needs website-aware
"""
_name = 'ir.qweb.field.image'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
try:
image = Image.open(cStringIO.StringIO(value.decode('base64')))
image.verify()
except IOError:
raise ValueError("Non-image binary fields can not be converted to HTML")
except: # image.verify() throws "suitable exceptions", I have no idea what they are
raise ValueError("Invalid image content")
return HTMLSafe('<img src="data:%s;base64,%s">' % (Image.MIME[image.format], value))
class MonetaryConverter(osv.AbstractModel):
""" ``monetary`` converter, has a mandatory option
``display_currency``.
The currency is used for formatting *and rounding* of the float value. It
is assumed that the linked res_currency has a non-empty rounding value and
res.currency's ``round`` method is used to perform rounding.
.. note:: the monetary converter internally adds the qweb context to its
options mapping, so that the context is available to callees.
It's set under the ``_qweb_context`` key.
"""
_name = 'ir.qweb.field.monetary'
_inherit = 'ir.qweb.field'
def to_html(self, cr, uid, field_name, record, options,
source_element, t_att, g_att, qweb_context, context=None):
options['_qweb_context'] = qweb_context
return super(MonetaryConverter, self).to_html(
cr, uid, field_name, record, options,
source_element, t_att, g_att, qweb_context, context=context)
def record_to_html(self, cr, uid, field_name, record, column, options, context=None):
if context is None:
context = {}
Currency = self.pool['res.currency']
display = self.display_currency(cr, uid, options)
# lang.format mandates a sprintf-style format. These formats are non-
# minimal (they have a default fixed precision instead), and
# lang.format will not set one by default. currency.round will not
# provide one either. So we need to generate a precision value
# (integer > 0) from the currency's rounding (a float generally < 1.0).
#
# The log10 of the rounding should be the number of digits involved if
# negative, if positive clamp to 0 digits and call it a day.
# nb: int() ~ floor(), we want nearest rounding instead
precision = int(round(math.log10(display.rounding)))
fmt = "%.{0}f".format(-precision if precision < 0 else 0)
lang_code = context.get('lang') or 'en_US'
lang = self.pool['res.lang']
formatted_amount = lang.format(cr, uid, [lang_code],
fmt, Currency.round(cr, uid, display, record[field_name]),
grouping=True, monetary=True)
pre = post = u''
if display.position == 'before':
pre = u'{symbol} '
else:
post = u' {symbol}'
return HTMLSafe(u'{pre}<span class="oe_currency_value">{0}</span>{post}'.format(
formatted_amount,
pre=pre, post=post,
).format(
symbol=display.symbol,
))
def display_currency(self, cr, uid, options):
return self.qweb_object().eval_object(
options['display_currency'], options['_qweb_context'])
TIMEDELTA_UNITS = (
('year', 3600 * 24 * 365),
('month', 3600 * 24 * 30),
('week', 3600 * 24 * 7),
('day', 3600 * 24),
('hour', 3600),
('minute', 60),
('second', 1)
)
class DurationConverter(osv.AbstractModel):
""" ``duration`` converter, to display integral or fractional values as
human-readable time spans (e.g. 1.5 as "1 hour 30 minutes").
Can be used on any numerical field.
Has a mandatory option ``unit`` which can be one of ``second``, ``minute``,
``hour``, ``day``, ``week`` or ``year``, used to interpret the numerical
field value before converting it.
Sub-second values will be ignored.
"""
_name = 'ir.qweb.field.duration'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
units = dict(TIMEDELTA_UNITS)
if value < 0:
raise ValueError(_("Durations can't be negative"))
if not options or options.get('unit') not in units:
raise ValueError(_("A unit must be provided to duration widgets"))
locale = babel.Locale.parse(
self.user_lang(cr, uid, context=context).code)
factor = units[options['unit']]
sections = []
r = value * factor
for unit, secs_per_unit in TIMEDELTA_UNITS:
v, r = divmod(r, secs_per_unit)
if not v: continue
section = babel.dates.format_timedelta(
v*secs_per_unit, threshold=1, locale=locale)
if section:
sections.append(section)
return u' '.join(sections)
class RelativeDatetimeConverter(osv.AbstractModel):
_name = 'ir.qweb.field.relative'
_inherit = 'ir.qweb.field'
def value_to_html(self, cr, uid, value, column, options=None, context=None):
parse_format = openerp.tools.DEFAULT_SERVER_DATETIME_FORMAT
locale = babel.Locale.parse(
self.user_lang(cr, uid, context=context).code)
if isinstance(value, basestring):
value = datetime.datetime.strptime(value, parse_format)
# value should be a naive datetime in UTC. So is fields.datetime.now()
reference = datetime.datetime.strptime(column.now(), parse_format)
return babel.dates.format_timedelta(
value - reference, add_direction=True, locale=locale)
class Contact(orm.AbstractModel):
_name = 'ir.qweb.field.contact'
_inherit = 'ir.qweb.field.many2one'
def record_to_html(self, cr, uid, field_name, record, column, options=None, context=None):
opf = options.get('fields') or ["name", "address", "phone", "mobile", "fax", "email"]
if not getattr(record, field_name):
return None
id = getattr(record, field_name).id
field_browse = self.pool[column._obj].browse(cr, openerp.SUPERUSER_ID, id, context={"show_address": True})
value = werkzeug.utils.escape( field_browse.name_get()[0][1] )
val = {
'name': value.split("\n")[0],
'address': werkzeug.utils.escape("\n".join(value.split("\n")[1:])),
'phone': field_browse.phone,
'mobile': field_browse.mobile,
'fax': field_browse.fax,
'city': field_browse.city,
'country_id': field_browse.country_id and field_browse.country_id.name_get()[0][1],
'email': field_browse.email,
'fields': opf,
'options': options
}
html = self.pool["ir.ui.view"].render(cr, uid, "base.contact", val, engine='ir.qweb', context=context).decode('utf8')
return HTMLSafe(html)
class HTMLSafe(object):
""" HTMLSafe string wrapper, Werkzeug's escape() has special handling for
objects with a ``__html__`` methods but AFAIK does not provide any such
object.
Wrapping a string in HTML will prevent its escaping
"""
__slots__ = ['string']
def __init__(self, string):
self.string = string
def __html__(self):
return self.string
def __str__(self):
s = self.string
if isinstance(s, unicode):
return s.encode('utf-8')
return s
def __unicode__(self):
s = self.string
if isinstance(s, str):
return s.decode('utf-8')
return s
def nl2br(string, options=None):
""" Converts newlines to HTML linebreaks in ``string``. Automatically
escapes content unless options['html-escape'] is set to False, and returns
the result wrapped in an HTMLSafe object.
:param str string:
:param dict options:
:rtype: HTMLSafe
"""
if options is None: options = {}
if options.get('html-escape', True):
string = werkzeug.utils.escape(string)
return HTMLSafe(string.replace('\n', '<br>\n'))
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)
# vim:et: