# Path: pynuts/fields.py
# class UploadField(FileField):
#     """Field handling file uploads."""
#     def __init__(self, upload_set, *args, **kwargs):
#         super(UploadField, self).__init__(*args, **kwargs)
#         self.upload_set = upload_set
# 
# class ImageField(UploadField):
#     """Field specifically handling image uploads."""
#     def __init__(self, *args, **kwargs):
#         super(ImageField, self).__init__(*args, **kwargs)


from base64 import b64encode
from flask import escape
from wtforms import BooleanField, DateField, DateTimeField
from wtforms.ext.sqlalchemy.fields import (
    QuerySelectField, QuerySelectMultipleField)
from .fields import UploadField, ImageField
    BooleanField
      Renders '✓' or '✕'
    DateField
      Renders the date
    ImageField
      Renders the image
    UploadField
      Renders a link to the uploaded file

    Example:

    .. sourcecode:: html+jinja

        <dd>{{ field | data }}</dd>

    """
    if isinstance(field, QuerySelectMultipleField):
        if field.data:
            return escape(
                u', '.join(field.get_label(data) for data in field.data))
        else:
            return u'∅'
    elif isinstance(field, QuerySelectField):
        if field.data:
            return escape(field.get_label(field.data))
    elif isinstance(field, BooleanField):
        return u'✓' if field.data else u'✕'
    elif isinstance(field, DateField) or isinstance(field, DateTimeField):
        if field.data:
            return field.data.strftime(field.format)

# Path: pynuts/fields.py
# class UploadField(FileField):
#     """Field handling file uploads."""
#     def __init__(self, upload_set, *args, **kwargs):
#         super(UploadField, self).__init__(*args, **kwargs)
#         self.upload_set = upload_set
# 
# class ImageField(UploadField):
#     """Field specifically handling image uploads."""
#     def __init__(self, *args, **kwargs):
#         super(ImageField, self).__init__(*args, **kwargs)


# Path: pynuts/filters.py
from base64 import b64encode
from flask import escape
from wtforms import BooleanField, DateField, DateTimeField
from wtforms.ext.sqlalchemy.fields import (
    QuerySelectField, QuerySelectMultipleField)
from .fields import UploadField, ImageField

    BooleanField
      Renders '✓' or '✕'
    DateField
      Renders the date
    ImageField
      Renders the image
    UploadField
      Renders a link to the uploaded file

    Example:

    .. sourcecode:: html+jinja

        <dd>{{ field | data }}</dd>

    """
    if isinstance(field, QuerySelectMultipleField):
        if field.data:
            return escape(
                u', '.join(field.get_label(data) for data in field.data))
        else:
            return u'∅'
    elif isinstance(field, QuerySelectField):
        if field.data:
            return escape(field.get_label(field.data))
    elif isinstance(field, BooleanField):
        return u'✓' if field.data else u'✕'
    elif isinstance(field, DateField) or isinstance(field, DateTimeField):
        if field.data:
            return field.data.strftime(field.format)

    elif isinstance(field, ImageField):