mirror of
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318 lines
10 KiB
Python
318 lines
10 KiB
Python
"""Contains the logic to create cohesive forms on the explore view"""
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from flask_appbuilder.fieldwidgets import BS3TextFieldWidget
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from wtforms import Field
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from flask_appbuilder.fieldwidgets import BS3TextFieldWidget,BS3PasswordFieldWidget,DatePickerWidget,DateTimePickerWidget,Select2ManyWidget,Select2Widget
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from myapp import app
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conf = app.config
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from wtforms.validators import DataRequired, Length, NumberRange, Optional,Regexp,ValidationError
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# 处理完再校验
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class JsonValidator(object):
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def __init__(self):
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pass
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def __call__(self, form, field):
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data = field.data
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if data is None:
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raise ValidationError('input must json')
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try:
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json.loads(data)
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except Exception as e:
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raise ValidationError("JSON is not valid :%s"%str(e))
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class MyCommaSeparatedListField(Field):
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widget = BS3TextFieldWidget()
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def _value(self):
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if self.data:
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return u", ".join(self.data)
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else:
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return u""
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def process_formdata(self, valuelist):
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if valuelist:
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self.data = [x.strip() for x in valuelist[0].split(",")]
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else:
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self.data = []
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def filter_not_empty_values(value):
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"""Returns a list of non empty values or None"""
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if not value:
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return None
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data = [x for x in value if x]
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if not data:
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return None
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return data
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import pysnooper,datetime,time,json
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from wtforms.widgets.core import HTMLString,html_params
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try:
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from html import escape
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except ImportError:
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from cgi import escape
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from wtforms.compat import text_type, iteritems
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class MyCodeArea(object):
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def __init__(self, code=''):
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self.code=code
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def __call__(self, field, **kwargs):
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if self.code:
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return HTMLString('<pre><code>%s</code></pre>' % (self.code,))
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else:
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return HTMLString('<pre><code>%s</code></pre>' % (field._value(),))
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# return HTMLString('<pre><code>%s</code></pre>' % (field._value(),))
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from wtforms import widgets
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class MyBS3TextAreaFieldWidget(widgets.TextArea):
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def __init__(self, rows=3,readonly=0):
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self.rows=rows
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self.readonly = readonly
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return super(MyBS3TextAreaFieldWidget, self).__init__()
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def __call__(self, field, **kwargs):
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kwargs["class"] = u"form-control"
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kwargs["rows"] = self.rows
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if field.label:
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kwargs["placeholder"] = field.label.text
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if self.readonly:
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kwargs['readonly']='readonly'
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return super(MyBS3TextAreaFieldWidget, self).__call__(field, **kwargs)
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class MyBS3TextFieldWidget(widgets.TextInput):
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def __init__(self, value='',readonly=0):
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self.value=value
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self.readonly = readonly
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return super(MyBS3TextFieldWidget, self).__init__()
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def __call__(self, field, **kwargs):
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kwargs["class"] = u"form-control"
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if field.label:
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kwargs["placeholder"] = field.label.text
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if "name_" in kwargs:
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field.name = kwargs["name_"]
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if self.value:
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kwargs['value'] = self.value
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if self.readonly:
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kwargs['readonly']='readonly'
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return super(MyBS3TextFieldWidget, self).__call__(field, **kwargs)
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class MyLineSeparatedListField(Field):
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widget = MyBS3TextAreaFieldWidget()
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# 前端要显示的值
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def _value(self):
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if self.data:
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return u"\n".join(self.data) # 数据库里面的数据是list
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else:
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return u""
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# 发送到后端的值
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def process_formdata(self, valuelist):
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if valuelist:
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self.data = [x.strip() for x in valuelist[0].split("\n")]
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else:
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self.data = []
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class MyJSONField(Field):
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widget = MyBS3TextAreaFieldWidget(rows=3)
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# 前端要显示的值
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def _value(self):
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if self.data:
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# return self.data #
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if type(self.data)==str: # 如果是字符集就原样返回
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return self.data
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return json.dumps(self.data,indent=4,ensure_ascii=False) # 数据库里面的数据是list
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else:
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return u"{}"
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# # 后端发送前端时的数据处理，处理完以后使用_value()进行显示
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# @pysnooper.snoop()
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# def process_data(self, value):
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# try:
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# if value:
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# self.data = json.loads(value)
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# else:
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# self.data = {}
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# except Exception as e:
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# self.data={}
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# print(self.data,type(self.data))
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# 发送到后端的值
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def process_formdata(self, valuelist):
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try:
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if valuelist:
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self.data = json.loads(valuelist[0])
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else:
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self.data = {}
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except Exception as e:
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self.data=valuelist[0] # self.default # 如果出错，self.data就是原始字符串了。
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raise ValidationError('input must json:'+str(e))
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from wtforms.widgets.core import escape_html
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from flask_babel import lazy_gettext as _
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class MySelect2Widget(object):
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extra_classes = None
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def __init__(self, extra_classes=None, style=None,multiple=False,new_web=True,value='',can_input=False,conten2choices=False):
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self.extra_classes = extra_classes
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self.style = style or u"width:350px"
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self.multiple = multiple
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self.value=value
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self.new_web=new_web
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self.can_input = can_input
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self.conten2choices=conten2choices
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# @pysnooper.snoop()
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def __call__(self, field, **kwargs):
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kwargs["class"] = u"my_select2 form-control"
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if self.extra_classes:
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kwargs["class"] = kwargs["class"] + " " + self.extra_classes
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kwargs["style"] = self.style
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kwargs["data-placeholder"] = _("Select Value")
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if "name_" in kwargs:
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field.name = kwargs["name_"]
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kwargs.setdefault('id', field.id)
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if self.multiple:
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kwargs['multiple'] = True
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if 'required' not in kwargs and 'required' in getattr(field, 'flags', []):
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kwargs['required'] = True
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if self.new_web:
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fun="set_change('%s')"%field.name
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else:
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fun=''
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html = ['''<select %s id=%s onchange="%s">''' %
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(html_params(name=field.name, **kwargs),field.name,fun)]
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for val, label, selected in field.iter_choices():
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if self.value:
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if str(val)==str(self.value):
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html.append(self.render_option(val, label, selected=True))
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else:
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html.append(self.render_option(val, label, selected=False))
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else:
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html.append(self.render_option(val, label, selected))
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html.append('</select>')
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return HTMLString(''.join(html))
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@classmethod
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def render_option(cls, value, label, selected, **kwargs):
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if value is True:
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# Handle the special case of a 'True' value.
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value = text_type(value)
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options = dict(kwargs, value=value)
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if selected:
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options['selected'] = True
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return HTMLString('<option %s>%s</option>' % (html_params(**options), escape_html(label, quote=False)))
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# json编辑框
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class MyJsonIde(object):
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def __call__(self, field, **kwargs):
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return HTMLString('<pre><code>%s</code></pre>' % (field._value(),))
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# return HTMLString('<pre><code>%s</code></pre>' % (field._value(),))
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class MySelect2ManyWidget(widgets.Select):
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extra_classes = None
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def __init__(self, extra_classes=None, style=None,can_input=False):
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self.extra_classes = extra_classes
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self.style = style or u"width:250px"
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self.can_input=can_input
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return super(MySelect2ManyWidget, self).__init__()
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from wtforms.fields.core import SelectField
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class MySelectMultipleField(SelectField):
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"""
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No different from a normal select field, except this one can take (and
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validate) multiple choices. You'll need to specify the HTML `size`
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attribute to the select field when rendering.
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"""
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widget = widgets.Select(multiple=True)
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def iter_choices(self):
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for value, label in self.choices:
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selected = self.data is not None and self.coerce(value) in self.data
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yield (value, label, selected)
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# 将数据库数据处理成前端需要的数据.post的时候也会调用一遍，那时value为None
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# @pysnooper.snoop(watch_explode='value')
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def process_data(self, value):
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try:
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if value:
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self.data = list(self.coerce(v) for v in value.split(','))
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# print(self.data)
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else:
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self.data=None
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except (ValueError, TypeError):
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self.data = None
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# @pysnooper.snoop(watch_explode='valuelist')
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def process_formdata(self, valuelist):
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try:
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self.data = ','.join(list(self.coerce(x) for x in valuelist))
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# print(self.data)
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except ValueError:
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raise ValueError(self.gettext('Invalid choice(s): one or more data inputs could not be coerced'))
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def pre_validate(self, form):
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pass
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from flask_appbuilder.widgets import FormWidget
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from flask_appbuilder._compat import as_unicode
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class MySearchWidget(FormWidget):
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template = "appbuilder/general/widgets/search.html"
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filters = None
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def __init__(self, **kwargs):
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self.filters = kwargs.get("filters")
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self.help_url=kwargs.get("help_url",'')
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return super(MySearchWidget, self).__init__(**kwargs)
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def __call__(self, **kwargs):
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""" create dict labels based on form """
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""" create dict of form widgets """
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""" create dict of possible filters """
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""" create list of active filters """
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label_columns = {}
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form_fields = {}
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search_filters = {}
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dict_filters = self.filters.get_search_filters()
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for col in self.template_args["include_cols"]:
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label_columns[col] = as_unicode(self.template_args["form"][col].label.text)
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form_fields[col] = self.template_args["form"][col]()
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search_filters[col] = [as_unicode(flt.name) for flt in dict_filters[col]]
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kwargs["help_url"] = self.help_url
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kwargs["label_columns"] = label_columns
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kwargs["form_fields"] = form_fields
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kwargs["search_filters"] = search_filters
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kwargs["active_filters"] = self.filters.get_filters_values_tojson()
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return super(MySearchWidget, self).__call__(**kwargs)
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