677 lines
30 KiB
Python
677 lines
30 KiB
Python
from django.conf import settings
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from django.core import formfields, validators
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from django.core.exceptions import ObjectDoesNotExist
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from django.utils.functional import curry
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from django.utils.text import capfirst
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import datetime, os
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# Random entropy string used by "default" param.
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NOT_PROVIDED = 'oijpwojefiojpanv'
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# Values for filter_interface.
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HORIZONTAL, VERTICAL = 1, 2
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# The values to use for "blank" in SelectFields. Will be appended to the start of most "choices" lists.
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BLANK_CHOICE_DASH = [("", "---------")]
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BLANK_CHOICE_NONE = [("", "None")]
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# Values for Relation.edit_inline.
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TABULAR, STACKED = 1, 2
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RECURSIVE_RELATIONSHIP_CONSTANT = 'self'
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# prepares a value for use in a LIKE query
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prep_for_like_query = lambda x: str(x).replace("%", "\%").replace("_", "\_")
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# returns the <ul> class for a given radio_admin value
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get_ul_class = lambda x: 'radiolist%s' % ((x == HORIZONTAL) and ' inline' or '')
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def manipulator_valid_rel_key(f, self, field_data, all_data):
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"Validates that the value is a valid foreign key"
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mod = f.rel.to.get_model_module()
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try:
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mod.get_object(**{'id__iexact': field_data})
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except ObjectDoesNotExist:
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raise validators.ValidationError, "Please enter a valid %s." % f.verbose_name
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def manipulator_validator_unique(f, opts, self, field_data, all_data):
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"Validates that the value is unique for this field."
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try:
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old_obj = opts.get_model_module().get_object(**{'%s__exact' % f.name: field_data})
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except ObjectDoesNotExist:
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return
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if hasattr(self, 'original_object') and getattr(self.original_object, opts.pk.name) == getattr(old_obj, opts.pk.name):
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return
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raise validators.ValidationError, "%s with this %s already exists." % (capfirst(opts.verbose_name), f.verbose_name)
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class Field(object):
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# Designates whether empty strings fundamentally are allowed at the
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# database level.
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empty_strings_allowed = True
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def __init__(self, name, verbose_name=None, primary_key=False,
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maxlength=None, unique=False, blank=False, null=False, db_index=None,
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core=False, rel=None, default=NOT_PROVIDED, editable=True,
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prepopulate_from=None, unique_for_date=None, unique_for_month=None,
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unique_for_year=None, validator_list=None, choices=None, radio_admin=None,
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help_text=''):
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self.name = name
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self.verbose_name = verbose_name or name.replace('_', ' ')
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self.primary_key = primary_key
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self.maxlength, self.unique = maxlength, unique
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self.blank, self.null = blank, null
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self.core, self.rel, self.default = core, rel, default
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self.editable = editable
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self.validator_list = validator_list or []
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self.prepopulate_from = prepopulate_from
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self.unique_for_date, self.unique_for_month = unique_for_date, unique_for_month
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self.unique_for_year = unique_for_year
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self.choices = choices or []
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self.radio_admin = radio_admin
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self.help_text = help_text
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if rel and isinstance(rel, ManyToMany):
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self.help_text += ' Hold down "Control", or "Command" on a Mac, to select more than one.'
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# Set db_index to True if the field has a relationship and doesn't explicitly set db_index.
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if db_index is None:
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if isinstance(rel, OneToOne) or isinstance(rel, ManyToOne):
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self.db_index = True
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else:
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self.db_index = False
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else:
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self.db_index = db_index
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def pre_save_add(self, obj, value):
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"""
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Hook for altering the object obj based on the value of this field,
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during the add stage.
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"""
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pass
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def get_db_prep_save(self, value):
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"Returns field's value prepared for saving into a database."
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return value
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def get_db_prep_lookup(self, lookup_type, value):
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"Returns field's value prepared for database lookup."
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if lookup_type in ('exact', 'gt', 'gte', 'lt', 'lte', 'ne', 'month', 'day'):
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return [value]
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elif lookup_type in ('range', 'in'):
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return value
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elif lookup_type == 'year':
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return ['%s-01-01' % value, '%s-12-31' % value]
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elif lookup_type in ('contains', 'icontains'):
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return ["%%%s%%" % prep_for_like_query(value)]
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elif lookup_type == 'iexact':
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return [prep_for_like_query(value)]
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elif lookup_type in ('startswith', 'istartswith'):
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return ["%s%%" % prep_for_like_query(value)]
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elif lookup_type in ('endswith', 'iendswith'):
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return ["%%%s" % prep_for_like_query(value)]
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elif lookup_type == 'isnull':
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return []
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raise TypeError, "Field has invalid lookup: %s" % lookup_type
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def has_default(self):
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"Returns a boolean of whether this field has a default value."
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return self.default != NOT_PROVIDED
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def get_default(self):
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"Returns the default value for this field."
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if self.default != NOT_PROVIDED:
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if hasattr(self.default, '__get_value__'):
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return self.default.__get_value__()
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return self.default
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if self.null:
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return None
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return ""
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def get_manipulator_field_names(self, name_prefix):
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"""
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Returns a list of field names that this object adds to the manipulator.
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"""
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return [name_prefix + self.name]
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def get_manipulator_fields(self, opts, manipulator, change, name_prefix='', rel=False):
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"""
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Returns a list of formfields.FormField instances for this field. It
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calculates the choices at runtime, not at compile time.
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name_prefix is a prefix to prepend to the "field_name" argument.
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rel is a boolean specifying whether this field is in a related context.
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"""
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params = {'validator_list': self.validator_list[:]}
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if self.maxlength and not self.choices: # Don't give SelectFields a maxlength parameter.
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params['maxlength'] = self.maxlength
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if isinstance(self.rel, ManyToOne):
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if self.rel.raw_id_admin:
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field_objs = self.get_manipulator_field_objs()
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params['validator_list'].append(curry(manipulator_valid_rel_key, self, manipulator))
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else:
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if self.radio_admin:
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field_objs = [formfields.RadioSelectField]
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params['choices'] = self.get_choices(include_blank=self.blank, blank_choice=BLANK_CHOICE_NONE)
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params['ul_class'] = get_ul_class(self.radio_admin)
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else:
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if self.null:
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field_objs = [formfields.NullSelectField]
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else:
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field_objs = [formfields.SelectField]
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params['choices'] = self.get_choices()
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elif self.choices:
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if self.radio_admin:
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field_objs = [formfields.RadioSelectField]
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params['choices'] = self.get_choices(include_blank=self.blank, blank_choice=BLANK_CHOICE_NONE)
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params['ul_class'] = get_ul_class(self.radio_admin)
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else:
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field_objs = [formfields.SelectField]
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params['choices'] = self.get_choices()
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else:
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field_objs = self.get_manipulator_field_objs()
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# Add the "unique" validator(s).
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for field_name_list in opts.unique_together:
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if field_name_list[0] == self.name:
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params['validator_list'].append(getattr(manipulator, 'isUnique%s' % '_'.join(field_name_list)))
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# Add the "unique for..." validator(s).
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if self.unique_for_date:
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params['validator_list'].append(getattr(manipulator, 'isUnique%sFor%s' % (self.name, self.unique_for_date)))
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if self.unique_for_month:
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params['validator_list'].append(getattr(manipulator, 'isUnique%sFor%s' % (self.name, self.unique_for_month)))
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if self.unique_for_year:
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params['validator_list'].append(getattr(manipulator, 'isUnique%sFor%s' % (self.name, self.unique_for_year)))
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if self.unique:
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params['validator_list'].append(curry(manipulator_validator_unique, self, opts, manipulator))
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# Only add is_required=True if the field cannot be blank. Primary keys
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# are a special case, and fields in a related context should set this
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# as False, because they'll be caught by a separate validator --
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# RequiredIfOtherFieldGiven.
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params['is_required'] = not self.blank and not self.primary_key and not rel
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# If this field is in a related context, check whether any other fields
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# in the related object have core=True. If so, add a validator --
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# RequiredIfOtherFieldsGiven -- to this FormField.
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if rel and not self.blank and not isinstance(self, AutoField) and not isinstance(self, FileField):
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# First, get the core fields, if any.
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core_field_names = []
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for f in opts.fields:
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if f.core and f != self:
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core_field_names.extend(f.get_manipulator_field_names(name_prefix))
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# Now, if there are any, add the validator to this FormField.
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if core_field_names:
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params['validator_list'].append(validators.RequiredIfOtherFieldsGiven(core_field_names, "This field is required."))
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# BooleanFields (CheckboxFields) are a special case. They don't take
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# is_required or validator_list.
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if isinstance(self, BooleanField):
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del params['validator_list'], params['is_required']
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# Finally, add the field_names.
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field_names = self.get_manipulator_field_names(name_prefix)
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return [man(field_name=field_names[i], **params) for i, man in enumerate(field_objs)]
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def get_manipulator_new_data(self, new_data, rel=False):
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"""
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Given the full new_data dictionary (from the manipulator), returns this
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field's data.
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"""
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if rel:
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return new_data.get(self.name, [self.get_default()])[0]
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else:
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val = new_data.get(self.name, self.get_default())
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if not self.empty_strings_allowed and val == '' and self.null:
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val = None
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return val
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def get_choices(self, include_blank=True, blank_choice=BLANK_CHOICE_DASH):
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"Returns a list of tuples used as SelectField choices for this field."
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first_choice = include_blank and blank_choice or []
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if self.choices:
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return first_choice + list(self.choices)
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rel_obj = self.rel.to
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return first_choice + [(getattr(x, rel_obj.pk.name), repr(x)) for x in rel_obj.get_model_module().get_list(**self.rel.limit_choices_to)]
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class AutoField(Field):
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empty_strings_allowed = False
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def get_manipulator_fields(self, opts, manipulator, change, name_prefix='', rel=False):
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if not rel:
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return [] # Don't add a FormField unless it's in a related context.
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return Field.get_manipulator_fields(self, opts, manipulator, change, name_prefix, rel)
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def get_manipulator_field_objs(self):
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return [formfields.HiddenField]
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def get_manipulator_new_data(self, new_data, rel=False):
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if not rel:
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return None
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return Field.get_manipulator_new_data(self, new_data, rel)
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class BooleanField(Field):
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def __init__(self, *args, **kwargs):
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kwargs['blank'] = True
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Field.__init__(self, *args, **kwargs)
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def get_manipulator_field_objs(self):
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return [formfields.CheckboxField]
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class CharField(Field):
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def get_manipulator_field_objs(self):
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return [formfields.TextField]
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class CommaSeparatedIntegerField(CharField):
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def get_manipulator_field_objs(self):
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return [formfields.CommaSeparatedIntegerField]
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class DateField(Field):
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empty_strings_allowed = False
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def __init__(self, name, verbose_name=None, auto_now=False, auto_now_add=False, **kwargs):
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self.auto_now, self.auto_now_add = auto_now, auto_now_add
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if auto_now or auto_now_add:
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kwargs['editable'] = False
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Field.__init__(self, name, verbose_name, **kwargs)
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def get_db_prep_lookup(self, lookup_type, value):
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if lookup_type == 'range':
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value = [str(v) for v in value]
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else:
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value = str(value)
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return Field.get_db_prep_lookup(self, lookup_type, value)
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def pre_save_add(self, obj, value):
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if self.auto_now or self.auto_now_add:
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setattr(obj, self.name, datetime.datetime.now())
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def get_db_prep_save(self, value):
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# Casts dates into string format for entry into database.
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if value is not None:
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value = value.strftime('%Y-%m-%d')
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return Field.get_db_prep_save(self, value)
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def get_manipulator_field_objs(self):
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return [formfields.DateField]
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class DateTimeField(DateField):
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def get_db_prep_save(self, value):
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# Casts dates into string format for entry into database.
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if value is not None:
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value = value.strftime('%Y-%m-%d %H:%M:%S')
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return Field.get_db_prep_save(self, value)
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def get_manipulator_field_objs(self):
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return [formfields.DateField, formfields.TimeField]
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def get_manipulator_field_names(self, name_prefix):
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return [name_prefix + self.name + '_date', name_prefix + self.name + '_time']
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def get_manipulator_new_data(self, new_data, rel=False):
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date_field, time_field = self.get_manipulator_field_names('')
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if rel:
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d = new_data.get(date_field, [None])[0]
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t = new_data.get(time_field, [None])[0]
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else:
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d = new_data.get(date_field, None)
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t = new_data.get(time_field, None)
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if d is not None and t is not None:
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return datetime.datetime.combine(d, t)
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return self.get_default()
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class EmailField(Field):
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def get_manipulator_field_objs(self):
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return [formfields.EmailField]
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class FileField(Field):
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def __init__(self, name, verbose_name=None, upload_to='', **kwargs):
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self.upload_to = upload_to
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Field.__init__(self, name, verbose_name, **kwargs)
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def get_manipulator_fields(self, opts, manipulator, change, name_prefix='', rel=False):
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field_list = Field.get_manipulator_fields(self, opts, manipulator, change, name_prefix, rel)
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if not self.blank:
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if rel:
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# This validator makes sure FileFields work in a related context.
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class RequiredFileField:
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def __init__(self, other_field_names, other_file_field_name):
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self.other_field_names = other_field_names
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self.other_file_field_name = other_file_field_name
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self.always_test = True
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def __call__(self, field_data, all_data):
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if not all_data.get(self.other_file_field_name, False):
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c = validators.RequiredIfOtherFieldsGiven(self.other_field_names, "This field is required.")
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c(field_data, all_data)
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# First, get the core fields, if any.
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core_field_names = []
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for f in opts.fields:
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if f.core and f != self:
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core_field_names.extend(f.get_manipulator_field_names(name_prefix))
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# Now, if there are any, add the validator to this FormField.
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if core_field_names:
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field_list[0].validator_list.append(RequiredFileField(core_field_names, field_list[1].field_name))
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else:
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v = validators.RequiredIfOtherFieldNotGiven(field_list[1].field_name, "This field is required.")
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v.always_test = True
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field_list[0].validator_list.append(v)
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field_list[0].is_required = field_list[1].is_required = False
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# If the raw path is passed in, validate it's under the MEDIA_ROOT.
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def isWithinMediaRoot(field_data, all_data):
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f = os.path.abspath(os.path.join(settings.MEDIA_ROOT, field_data))
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if not f.startswith(os.path.normpath(settings.MEDIA_ROOT)):
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raise validators.ValidationError, "Enter a valid filename."
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field_list[1].validator_list.append(isWithinMediaRoot)
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return field_list
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def get_manipulator_field_objs(self):
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return [formfields.FileUploadField, formfields.HiddenField]
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def get_manipulator_field_names(self, name_prefix):
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return [name_prefix + self.name + '_file', name_prefix + self.name]
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def save_file(self, new_data, new_object, original_object, change, rel):
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upload_field_name = self.get_manipulator_field_names('')[0]
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if new_data.get(upload_field_name, False):
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if rel:
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getattr(new_object, 'save_%s_file' % self.name)(new_data[upload_field_name][0]["filename"], new_data[upload_field_name][0]["content"])
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else:
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getattr(new_object, 'save_%s_file' % self.name)(new_data[upload_field_name]["filename"], new_data[upload_field_name]["content"])
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def get_directory_name(self):
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return os.path.normpath(datetime.datetime.now().strftime(self.upload_to))
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def get_filename(self, filename):
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from django.utils.text import get_valid_filename
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f = os.path.join(self.get_directory_name(), get_valid_filename(os.path.basename(filename)))
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return os.path.normpath(f)
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class FloatField(Field):
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empty_strings_allowed = False
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def __init__(self, name, verbose_name=None, max_digits=None, decimal_places=None, **kwargs):
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self.max_digits, self.decimal_places = max_digits, decimal_places
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Field.__init__(self, name, verbose_name, **kwargs)
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def get_manipulator_field_objs(self):
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return [curry(formfields.FloatField, max_digits=self.max_digits, decimal_places=self.decimal_places)]
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class ImageField(FileField):
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def __init__(self, name, verbose_name=None, width_field=None, height_field=None, **kwargs):
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self.width_field, self.height_field = width_field, height_field
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FileField.__init__(self, name, verbose_name, **kwargs)
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def get_manipulator_field_objs(self):
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return [formfields.ImageUploadField, formfields.HiddenField]
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def save_file(self, new_data, new_object, original_object, change, rel):
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FileField.save_file(self, new_data, new_object, original_object, change, rel)
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# If the image has height and/or width field(s) and they haven't
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# changed, set the width and/or height field(s) back to their original
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# values.
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if change and (self.width_field or self.height_field):
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if self.width_field:
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setattr(new_object, self.width_field, getattr(original_object, self.width_field))
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if self.height_field:
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setattr(new_object, self.height_field, getattr(original_object, self.height_field))
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new_object.save()
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class IntegerField(Field):
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empty_strings_allowed = False
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def get_manipulator_field_objs(self):
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return [formfields.IntegerField]
|
|
|
|
class IPAddressField(Field):
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs['maxlength'] = 15
|
|
Field.__init__(self, *args, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.IPAddressField]
|
|
|
|
class NullBooleanField(Field):
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs['null'] = True
|
|
Field.__init__(self, *args, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.NullBooleanField]
|
|
|
|
class PhoneNumberField(IntegerField):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.PhoneNumberField]
|
|
|
|
class PositiveIntegerField(IntegerField):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.PositiveIntegerField]
|
|
|
|
class PositiveSmallIntegerField(IntegerField):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.PositiveSmallIntegerField]
|
|
|
|
class SlugField(Field):
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs['maxlength'] = 50
|
|
kwargs.setdefault('validator_list', []).append(validators.isAlphaNumeric)
|
|
# Set db_index=True unless it's been set manually.
|
|
if not kwargs.has_key('db_index'):
|
|
kwargs['db_index'] = True
|
|
Field.__init__(self, *args, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.TextField]
|
|
|
|
class SmallIntegerField(IntegerField):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.SmallIntegerField]
|
|
|
|
class TextField(Field):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.LargeTextField]
|
|
|
|
class TimeField(Field):
|
|
empty_strings_allowed = False
|
|
def __init__(self, name, verbose_name=None, auto_now=False, auto_now_add=False, **kwargs):
|
|
self.auto_now, self.auto_now_add = auto_now, auto_now_add
|
|
if auto_now or auto_now_add:
|
|
kwargs['editable'] = False
|
|
Field.__init__(self, name, verbose_name, **kwargs)
|
|
|
|
def get_db_prep_lookup(self, lookup_type, value):
|
|
if lookup_type == 'range':
|
|
value = [str(v) for v in value]
|
|
else:
|
|
value = str(value)
|
|
return Field.get_db_prep_lookup(self, lookup_type, value)
|
|
|
|
def pre_save_add(self, obj, value):
|
|
if self.auto_now or self.auto_now_add:
|
|
setattr(obj, self.name, datetime.datetime.now().time())
|
|
|
|
def get_db_prep_save(self, value):
|
|
# Casts dates into string format for entry into database.
|
|
if value is not None:
|
|
value = value.strftime('%H:%M:%S')
|
|
return Field.get_db_prep_save(self, value)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.TimeField]
|
|
|
|
class URLField(Field):
|
|
def __init__(self, name, verbose_name=None, verify_exists=True, **kwargs):
|
|
if verify_exists:
|
|
kwargs.setdefault('validator_list', []).append(validators.isExistingURL)
|
|
Field.__init__(self, name, verbose_name, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.URLField]
|
|
|
|
class USStateField(Field):
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.USStateField]
|
|
|
|
class XMLField(Field):
|
|
def __init__(self, name, verbose_name=None, schema_path=None, **kwargs):
|
|
self.schema_path = schema_path
|
|
Field.__init__(self, name, verbose_name, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [curry(formfields.XMLLargeTextField, schema_path=self.schema_path)]
|
|
|
|
class ForeignKey(Field):
|
|
empty_strings_allowed = False
|
|
def __init__(self, to, to_field=None, rel_name=None, **kwargs):
|
|
try:
|
|
to_name = to._meta.object_name.lower()
|
|
except AttributeError: # to._meta doesn't exist, so it must be RECURSIVE_RELATIONSHIP_CONSTANT
|
|
assert to == 'self', "ForeignKey(%r) is invalid. First parameter to ForeignKey must be either a model or the string %r" % (to, RECURSIVE_RELATIONSHIP_CONSTANT)
|
|
kwargs['name'] = kwargs.get('name', '')
|
|
kwargs['verbose_name'] = kwargs.get('verbose_name', '')
|
|
else:
|
|
to_field = to_field or to._meta.pk.name
|
|
kwargs['name'] = kwargs.get('name', to_name + '_id')
|
|
kwargs['verbose_name'] = kwargs.get('verbose_name', to._meta.verbose_name)
|
|
rel_name = rel_name or to_name
|
|
|
|
if kwargs.has_key('edit_inline_type'):
|
|
import warnings
|
|
warnings.warn("edit_inline_type is deprecated. Use edit_inline instead.")
|
|
kwargs['edit_inline'] = kwargs.pop('edit_inline_type')
|
|
|
|
kwargs['rel'] = ManyToOne(to, rel_name, to_field,
|
|
num_in_admin=kwargs.pop('num_in_admin', 3),
|
|
min_num_in_admin=kwargs.pop('min_num_in_admin', None),
|
|
max_num_in_admin=kwargs.pop('max_num_in_admin', None),
|
|
num_extra_on_change=kwargs.pop('num_extra_on_change', 1),
|
|
edit_inline=kwargs.pop('edit_inline', False),
|
|
related_name=kwargs.pop('related_name', None),
|
|
limit_choices_to=kwargs.pop('limit_choices_to', None),
|
|
lookup_overrides=kwargs.pop('lookup_overrides', None),
|
|
raw_id_admin=kwargs.pop('raw_id_admin', False))
|
|
Field.__init__(self, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
return [formfields.IntegerField]
|
|
|
|
class ManyToManyField(Field):
|
|
def __init__(self, to, rel_name=None, **kwargs):
|
|
kwargs['name'] = kwargs.get('name', to._meta.module_name)
|
|
kwargs['verbose_name'] = kwargs.get('verbose_name', to._meta.verbose_name_plural)
|
|
rel_name = rel_name or to._meta.object_name.lower()
|
|
kwargs['rel'] = ManyToMany(to, rel_name,
|
|
num_in_admin=kwargs.pop('num_in_admin', 0),
|
|
related_name=kwargs.pop('related_name', None),
|
|
filter_interface=kwargs.pop('filter_interface', None),
|
|
limit_choices_to=kwargs.pop('limit_choices_to', None))
|
|
Field.__init__(self, **kwargs)
|
|
|
|
def get_manipulator_field_objs(self):
|
|
choices = self.get_choices(include_blank=False)
|
|
return [curry(formfields.SelectMultipleField, size=min(max(len(choices), 5), 15), choices=choices)]
|
|
|
|
def get_m2m_db_table(self, original_opts):
|
|
"Returns the name of the many-to-many 'join' table."
|
|
return '%s_%s' % (original_opts.db_table, self.name)
|
|
|
|
class OneToOneField(IntegerField):
|
|
def __init__(self, to, to_field=None, rel_name=None, **kwargs):
|
|
kwargs['name'] = kwargs.get('name', 'id')
|
|
kwargs['verbose_name'] = kwargs.get('verbose_name', 'ID')
|
|
to_field = to_field or to._meta.pk.name
|
|
rel_name = rel_name or to._meta.object_name.lower()
|
|
|
|
if kwargs.has_key('edit_inline_type'):
|
|
import warnings
|
|
warnings.warn("edit_inline_type is deprecated. Use edit_inline instead.")
|
|
kwargs['edit_inline'] = kwargs.pop('edit_inline_type')
|
|
|
|
kwargs['rel'] = OneToOne(to, rel_name, to_field,
|
|
num_in_admin=kwargs.pop('num_in_admin', 0),
|
|
edit_inline=kwargs.pop('edit_inline', False),
|
|
related_name=kwargs.pop('related_name', None),
|
|
limit_choices_to=kwargs.pop('limit_choices_to', None),
|
|
lookup_overrides=kwargs.pop('lookup_overrides', None),
|
|
raw_id_admin=kwargs.pop('raw_id_admin', False))
|
|
kwargs['primary_key'] = True
|
|
IntegerField.__init__(self, **kwargs)
|
|
|
|
class ManyToOne:
|
|
def __init__(self, to, name, field_name, num_in_admin=3, min_num_in_admin=None,
|
|
max_num_in_admin=None, num_extra_on_change=1, edit_inline=False,
|
|
related_name=None, limit_choices_to=None, lookup_overrides=None, raw_id_admin=False):
|
|
try:
|
|
self.to = to._meta
|
|
except AttributeError: # to._meta doesn't exist, so it must be RECURSIVE_RELATIONSHIP_CONSTANT
|
|
assert to == RECURSIVE_RELATIONSHIP_CONSTANT, "'to' must be either a model or the string '%s'" % RECURSIVE_RELATIONSHIP_CONSTANT
|
|
self.to = to
|
|
self.name, self.field_name = name, field_name
|
|
self.num_in_admin, self.edit_inline = num_in_admin, edit_inline
|
|
self.min_num_in_admin, self.max_num_in_admin = min_num_in_admin, max_num_in_admin
|
|
self.num_extra_on_change, self.related_name = num_extra_on_change, related_name
|
|
self.limit_choices_to = limit_choices_to or {}
|
|
self.lookup_overrides = lookup_overrides or {}
|
|
self.raw_id_admin = raw_id_admin
|
|
|
|
def get_cache_name(self):
|
|
return '_%s_cache' % self.name
|
|
|
|
def get_related_field(self):
|
|
"Returns the Field in the 'to' object to which this relationship is tied."
|
|
return self.to.get_field(self.field_name)
|
|
|
|
class ManyToMany:
|
|
def __init__(self, to, name, num_in_admin=0, related_name=None,
|
|
filter_interface=None, limit_choices_to=None):
|
|
self.to, self.name = to._meta, name
|
|
self.num_in_admin = num_in_admin
|
|
self.related_name = related_name
|
|
self.filter_interface = filter_interface
|
|
self.limit_choices_to = limit_choices_to or {}
|
|
self.edit_inline = False
|
|
|
|
class OneToOne(ManyToOne):
|
|
def __init__(self, to, name, field_name, num_in_admin=0, edit_inline=False,
|
|
related_name=None, limit_choices_to=None, lookup_overrides=None,
|
|
raw_id_admin=False):
|
|
self.to, self.name, self.field_name = to._meta, name, field_name
|
|
self.num_in_admin, self.edit_inline = num_in_admin, edit_inline
|
|
self.related_name = related_name
|
|
self.limit_choices_to = limit_choices_to or {}
|
|
self.lookup_overrides = lookup_overrides or {}
|
|
self.raw_id_admin = raw_id_admin
|
|
|
|
class Admin:
|
|
def __init__(self, fields=None, js=None, list_display=None, list_filter=None, date_hierarchy=None,
|
|
save_as=False, ordering=None, search_fields=None, save_on_top=False):
|
|
self.fields = fields
|
|
self.js = js or []
|
|
self.list_display = list_display or ['__repr__']
|
|
self.list_filter = list_filter or []
|
|
self.date_hierarchy = date_hierarchy
|
|
self.save_as, self.ordering = save_as, ordering
|
|
self.search_fields = search_fields or []
|
|
self.save_on_top = save_on_top
|
|
|
|
def get_field_objs(self, opts):
|
|
"""
|
|
Returns self.fields, except with fields as Field objects instead of
|
|
field names. If self.fields is None, defaults to putting every
|
|
non-AutoField field with editable=True in a single fieldset.
|
|
"""
|
|
if self.fields is None:
|
|
field_struct = ((None, {'fields': [f.name for f in opts.fields + opts.many_to_many if f.editable and not isinstance(f, AutoField)]}),)
|
|
else:
|
|
field_struct = self.fields
|
|
new_fieldset_list = []
|
|
for fieldset in field_struct:
|
|
new_fieldset = [fieldset[0], {}]
|
|
new_fieldset[1].update(fieldset[1])
|
|
admin_fields = []
|
|
for field_name_or_list in fieldset[1]['fields']:
|
|
if isinstance(field_name_or_list, basestring):
|
|
admin_fields.append([opts.get_field(field_name_or_list)])
|
|
else:
|
|
admin_fields.append([opts.get_field(field_name) for field_name in field_name_or_list])
|
|
new_fieldset[1]['fields'] = admin_fields
|
|
new_fieldset_list.append(new_fieldset)
|
|
return new_fieldset_list
|