diff options
Diffstat (limited to 'bootstrap_datepicker/widgets.py')
| -rw-r--r-- | bootstrap_datepicker/widgets.py | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/bootstrap_datepicker/widgets.py b/bootstrap_datepicker/widgets.py new file mode 100644 index 000000000..9416ac16b --- /dev/null +++ b/bootstrap_datepicker/widgets.py @@ -0,0 +1,169 @@ +# -*- coding: utf-8 -*- +from __future__ import unicode_literals + +import datetime +from json import dumps as json_dumps +import logging + +from django import forms +from django.forms.utils import flatatt +from django.forms.widgets import DateTimeInput +from django.utils.safestring import mark_safe +from django.utils import translation +from django.utils.html import conditional_escape +from django.utils.encoding import force_text + +logger = logging.getLogger(__name__) + + +DATE_FORMAT = { + 'fr': "dd/mm/yyyy", + 'en': "yyyy/mm/dd", +} + +DATE_INPUT_FORMATS = ['%d/%m/%Y', '%Y/%m/%d', '%Y-%m-%d'] + + +class DatePicker(DateTimeInput): + class Media: + class JSFiles(object): + def __iter__(self): + yield 'js/bootstrap-datepicker.js' + lang = translation.get_language() + if lang: + lang = lang.lower() + # language name with length > 2 or containing uppercase + lang_map = { + 'en-au': 'en-AU', + 'en-gb': 'en-GB', + 'en-us': 'en-us', + 'fr-CH': 'fr-CH', + 'it-ch': 'it-CH', + 'nl-be': 'nl-BE', + 'pt-br': 'pt-BR', + 'rs-latin': 'rs-latin', + 'sr-latin': 'sr-latin', + 'zh-cn': 'zh-CN', + 'zh-tw': 'zh-TW', + } + if len(lang) > 2: + lang = lang_map.get(lang, 'en-us') + if lang not in ('en', 'en-us'): + yield 'js/locales/bootstrap-datepicker.%s.min.js' % ( + lang) + + js = JSFiles() + css = {'all': ('css/bootstrap-datepicker3.standalone.min.css',), } + # http://bootstrap-datepicker.readthedocs.org/en/stable/options.html#format + # http://docs.python.org/2/library/datetime.html#strftime-strptime-behavior + + format_map = ( + ('dd', r'%d'), + ('DD', r'%A'), + ('D', r'%a'), + ('MM', r'%B'), + ('M', r'%b'), + ('mm', r'%m'), + ('yyyy', r'%Y'), + ('yy', r'%y'), + ) + + @classmethod + def conv_datetime_format_py2js(cls, format): + for js, py in cls.format_map: + format = format.replace(py, js) + return format + + @classmethod + def conv_datetime_format_js2py(cls, format): + for js, py in cls.format_map: + format = format.replace(js, py) + return format + + html_template = """ + <div%(div_attrs)s> + <input%(input_attrs)s/> + <span class="input-group-append"> + <span class="input-group-text"> + <span%(icon_attrs)s></span> + </span> + </span> + </div>""" + + js_template = ''' + <script> + (function() { + var callback = function() { + $(function(){$("#%(picker_id)s:has(input:not([readonly],[disabled]))").datepicker(%(options)s);}); + }; + callback(); + })(); + </script>''' + + def __init__(self, attrs=None, format=None, options=None, div_attrs=None, + icon_attrs=None): + if not icon_attrs: + icon_attrs = {'class': 'fa fa-calendar fa-2'} + if not div_attrs: + div_attrs = {'class': 'input-group date'} + if format is None and options and options.get('format'): + format = self.conv_datetime_format_js2py(options.get('format')) + super(DatePicker, self).__init__(attrs, format) + if 'class' not in self.attrs: + self.attrs['class'] = 'form-control' + self.div_attrs = div_attrs and div_attrs.copy() or {} + self.icon_attrs = icon_attrs and icon_attrs.copy() or {} + self.picker_id = self.div_attrs.get('id') or None + self.options = options and options.copy() or {} + if format and not self.options.get('format') and not self.attrs.get( + 'date-format'): + self.options['format'] = self.conv_datetime_format_py2js(format) + + def format_value(self, value): + if not self.options.get('format'): + logger.debug('datepicker: format not defined') + return str(value) + py_format = self.conv_datetime_format_js2py(self.options['format']) + if not hasattr(value, 'strftime'): + value = str(value) + try: + value = datetime.datetime.strptime(value, '%Y-%m-%d') + except ValueError: + logger.debug('datepicker: cannot extract date from %s' % value) + return str(value) + value = value.strftime(py_format) + return value + + def render(self, name, value, attrs=None): + if value is None: + value = '' + extra_attrs = dict() + extra_attrs['type'] = self.input_type + extra_attrs['name'] = name + input_attrs = self.build_attrs(attrs, extra_attrs) + if value != '': + # Only add the 'value' attribute if a value is non-empty. + input_attrs['value'] = force_text(self.format_value(value)) + input_attrs = {key: conditional_escape(val) + for key, val in input_attrs.items()} + if not self.picker_id: + self.picker_id = ( + input_attrs.get('id', '') + '_pickers' + ).replace(' ', '_') + self.div_attrs['id'] = self.picker_id + picker_id = conditional_escape(self.picker_id) + div_attrs = {key: conditional_escape(val) + for key, val in self.div_attrs.items()} + icon_attrs = {key: conditional_escape(val) + for key, val in self.icon_attrs.items()} + html = self.html_template % dict(div_attrs=flatatt(div_attrs), + input_attrs=flatatt(input_attrs), + icon_attrs=flatatt(icon_attrs)) + js = self.js_template % dict(picker_id=picker_id, + options=json_dumps(self.options or {})) + return mark_safe(force_text(html + js)) + + +class DateField(forms.DateField): + widget = DatePicker + input_formats = DATE_INPUT_FORMATS |