diff options
Diffstat (limited to 'django/db/models/fields/__init__.py')
| -rw-r--r-- | django/db/models/fields/__init__.py | 188 |
1 files changed, 142 insertions, 46 deletions
diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py index 49eb594838..781e4cb9e9 100644 --- a/django/db/models/fields/__init__.py +++ b/django/db/models/fields/__init__.py @@ -2,9 +2,11 @@ from django.db.models import signals from django.dispatch import dispatcher from django.conf import settings from django.core import validators -from django import forms +from django import oldforms +from django import newforms as forms from django.core.exceptions import ObjectDoesNotExist from django.utils.functional import curry +from django.utils.itercompat import tee from django.utils.text import capfirst from django.utils.translation import gettext, gettext_lazy import datetime, os, time @@ -80,7 +82,7 @@ class Field(object): self.prepopulate_from = prepopulate_from self.unique_for_date, self.unique_for_month = unique_for_date, unique_for_month self.unique_for_year = unique_for_year - self.choices = choices or [] + self._choices = choices or [] self.radio_admin = radio_admin self.help_text = help_text self.db_column = db_column @@ -162,7 +164,7 @@ class Field(object): def get_db_prep_lookup(self, lookup_type, value): "Returns field's value prepared for database lookup." - if lookup_type in ('exact', 'gt', 'gte', 'lt', 'lte', 'year', 'month', 'day', 'search'): + if lookup_type in ('exact', 'gt', 'gte', 'lt', 'lte', 'month', 'day', 'search'): return [value] elif lookup_type in ('range', 'in'): return value @@ -176,7 +178,13 @@ class Field(object): return ["%%%s" % prep_for_like_query(value)] elif lookup_type == 'isnull': return [] - raise TypeError, "Field has invalid lookup: %s" % lookup_type + elif lookup_type == 'year': + try: + value = int(value) + except ValueError: + raise ValueError("The __year lookup type requires an integer argument") + return ['%s-01-01 00:00:00' % value, '%s-12-31 23:59:59.999999' % value] + raise TypeError("Field has invalid lookup: %s" % lookup_type) def has_default(self): "Returns a boolean of whether this field has a default value." @@ -205,10 +213,10 @@ class Field(object): if self.choices: if self.radio_admin: - field_objs = [forms.RadioSelectField] + field_objs = [oldforms.RadioSelectField] params['ul_class'] = get_ul_class(self.radio_admin) else: - field_objs = [forms.SelectField] + field_objs = [oldforms.SelectField] params['choices'] = self.get_choices_default() else: @@ -217,7 +225,7 @@ class Field(object): def get_manipulator_fields(self, opts, manipulator, change, name_prefix='', rel=False, follow=True): """ - Returns a list of forms.FormField instances for this field. It + Returns a list of oldforms.FormField instances for this field. It calculates the choices at runtime, not at compile time. name_prefix is a prefix to prepend to the "field_name" argument. @@ -324,6 +332,24 @@ class Field(object): def bind(self, fieldmapping, original, bound_field_class): return bound_field_class(self, fieldmapping, original) + def _get_choices(self): + if hasattr(self._choices, 'next'): + choices, self._choices = tee(self._choices) + return choices + else: + return self._choices + choices = property(_get_choices) + + def formfield(self, **kwargs): + "Returns a django.newforms.Field instance for this database Field." + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.CharField(**defaults) + + def value_from_object(self, obj): + "Returns the value of this field in the given model instance." + return getattr(obj, self.attname) + class AutoField(Field): empty_strings_allowed = False def __init__(self, *args, **kwargs): @@ -345,7 +371,7 @@ class AutoField(Field): return Field.get_manipulator_fields(self, opts, manipulator, change, name_prefix, rel, follow) def get_manipulator_field_objs(self): - return [forms.HiddenField] + return [oldforms.HiddenField] def get_manipulator_new_data(self, new_data, rel=False): # Never going to be called @@ -360,6 +386,9 @@ class AutoField(Field): super(AutoField, self).contribute_to_class(cls, name) cls._meta.has_auto_field = True + def formfield(self, **kwargs): + return None + class BooleanField(Field): def __init__(self, *args, **kwargs): kwargs['blank'] = True @@ -367,16 +396,21 @@ class BooleanField(Field): def to_python(self, value): if value in (True, False): return value - if value in ('t', 'True'): return True - if value in ('f', 'False'): return False + if value in ('t', 'True', '1'): return True + if value in ('f', 'False', '0'): return False raise validators.ValidationError, gettext("This value must be either True or False.") def get_manipulator_field_objs(self): - return [forms.CheckboxField] + return [oldforms.CheckboxField] + + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.BooleanField(**defaults) class CharField(Field): def get_manipulator_field_objs(self): - return [forms.TextField] + return [oldforms.TextField] def to_python(self, value): if isinstance(value, basestring): @@ -388,10 +422,15 @@ class CharField(Field): raise validators.ValidationError, gettext_lazy("This field cannot be null.") return str(value) + def formfield(self, **kwargs): + defaults = {'max_length': self.maxlength, 'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.CharField(**defaults) + # TODO: Maybe move this into contrib, because it's specialized. class CommaSeparatedIntegerField(CharField): def get_manipulator_field_objs(self): - return [forms.CommaSeparatedIntegerField] + return [oldforms.CommaSeparatedIntegerField] class DateField(Field): empty_strings_allowed = False @@ -404,6 +443,8 @@ class DateField(Field): Field.__init__(self, verbose_name, name, **kwargs) def to_python(self, value): + if value is None: + return value if isinstance(value, datetime.datetime): return value.date() if isinstance(value, datetime.date): @@ -453,14 +494,21 @@ class DateField(Field): return Field.get_db_prep_save(self, value) def get_manipulator_field_objs(self): - return [forms.DateField] + return [oldforms.DateField] - def flatten_data(self, follow, obj = None): + def flatten_data(self, follow, obj=None): val = self._get_val_from_obj(obj) return {self.attname: (val is not None and val.strftime("%Y-%m-%d") or '')} + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.DateField(**defaults) + class DateTimeField(DateField): def to_python(self, value): + if value is None: + return value if isinstance(value, datetime.datetime): return value if isinstance(value, datetime.date): @@ -494,7 +542,7 @@ class DateTimeField(DateField): return Field.get_db_prep_lookup(self, lookup_type, value) def get_manipulator_field_objs(self): - return [forms.DateField, forms.TimeField] + return [oldforms.DateField, oldforms.TimeField] def get_manipulator_field_names(self, name_prefix): return [name_prefix + self.name + '_date', name_prefix + self.name + '_time'] @@ -517,6 +565,11 @@ class DateTimeField(DateField): return {date_field: (val is not None and val.strftime("%Y-%m-%d") or ''), time_field: (val is not None and val.strftime("%H:%M:%S") or '')} + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.DateTimeField(**defaults) + class EmailField(CharField): def __init__(self, *args, **kwargs): kwargs['maxlength'] = 75 @@ -526,11 +579,16 @@ class EmailField(CharField): return "CharField" def get_manipulator_field_objs(self): - return [forms.EmailField] + return [oldforms.EmailField] def validate(self, field_data, all_data): validators.isValidEmail(field_data, all_data) + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.EmailField(**defaults) + class FileField(Field): def __init__(self, verbose_name=None, name=None, upload_to='', **kwargs): self.upload_to = upload_to @@ -567,7 +625,7 @@ class FileField(Field): # If the raw path is passed in, validate it's under the MEDIA_ROOT. def isWithinMediaRoot(field_data, all_data): f = os.path.abspath(os.path.join(settings.MEDIA_ROOT, field_data)) - if not f.startswith(os.path.normpath(settings.MEDIA_ROOT)): + if not f.startswith(os.path.abspath(os.path.normpath(settings.MEDIA_ROOT))): raise validators.ValidationError, _("Enter a valid filename.") field_list[1].validator_list.append(isWithinMediaRoot) return field_list @@ -577,7 +635,7 @@ class FileField(Field): setattr(cls, 'get_%s_filename' % self.name, curry(cls._get_FIELD_filename, field=self)) setattr(cls, 'get_%s_url' % self.name, curry(cls._get_FIELD_url, field=self)) setattr(cls, 'get_%s_size' % self.name, curry(cls._get_FIELD_size, field=self)) - setattr(cls, 'save_%s_file' % self.name, lambda instance, filename, raw_contents: instance._save_FIELD_file(self, filename, raw_contents)) + setattr(cls, 'save_%s_file' % self.name, lambda instance, filename, raw_contents, save=True: instance._save_FIELD_file(self, filename, raw_contents, save)) dispatcher.connect(self.delete_file, signal=signals.post_delete, sender=cls) def delete_file(self, instance): @@ -590,19 +648,19 @@ class FileField(Field): os.remove(file_name) def get_manipulator_field_objs(self): - return [forms.FileUploadField, forms.HiddenField] + return [oldforms.FileUploadField, oldforms.HiddenField] def get_manipulator_field_names(self, name_prefix): return [name_prefix + self.name + '_file', name_prefix + self.name] - def save_file(self, new_data, new_object, original_object, change, rel): + def save_file(self, new_data, new_object, original_object, change, rel, save=True): upload_field_name = self.get_manipulator_field_names('')[0] if new_data.get(upload_field_name, False): func = getattr(new_object, 'save_%s_file' % self.name) if rel: - func(new_data[upload_field_name][0]["filename"], new_data[upload_field_name][0]["content"]) + func(new_data[upload_field_name][0]["filename"], new_data[upload_field_name][0]["content"], save) else: - func(new_data[upload_field_name]["filename"], new_data[upload_field_name]["content"]) + func(new_data[upload_field_name]["filename"], new_data[upload_field_name]["content"], save) def get_directory_name(self): return os.path.normpath(datetime.datetime.now().strftime(self.upload_to)) @@ -618,7 +676,7 @@ class FilePathField(Field): Field.__init__(self, verbose_name, name, **kwargs) def get_manipulator_field_objs(self): - return [curry(forms.FilePathField, path=self.path, match=self.match, recursive=self.recursive)] + return [curry(oldforms.FilePathField, path=self.path, match=self.match, recursive=self.recursive)] class FloatField(Field): empty_strings_allowed = False @@ -627,7 +685,7 @@ class FloatField(Field): Field.__init__(self, verbose_name, name, **kwargs) def get_manipulator_field_objs(self): - return [curry(forms.FloatField, max_digits=self.max_digits, decimal_places=self.decimal_places)] + return [curry(oldforms.FloatField, max_digits=self.max_digits, decimal_places=self.decimal_places)] class ImageField(FileField): def __init__(self, verbose_name=None, name=None, width_field=None, height_field=None, **kwargs): @@ -635,7 +693,7 @@ class ImageField(FileField): FileField.__init__(self, verbose_name, name, **kwargs) def get_manipulator_field_objs(self): - return [forms.ImageUploadField, forms.HiddenField] + return [oldforms.ImageUploadField, oldforms.HiddenField] def contribute_to_class(self, cls, name): super(ImageField, self).contribute_to_class(cls, name) @@ -646,12 +704,12 @@ class ImageField(FileField): if not self.height_field: setattr(cls, 'get_%s_height' % self.name, curry(cls._get_FIELD_height, field=self)) - def save_file(self, new_data, new_object, original_object, change, rel): - FileField.save_file(self, new_data, new_object, original_object, change, rel) + def save_file(self, new_data, new_object, original_object, change, rel, save=True): + FileField.save_file(self, new_data, new_object, original_object, change, rel, save) # If the image has height and/or width field(s) and they haven't # changed, set the width and/or height field(s) back to their original # values. - if change and (self.width_field or self.height_field): + if change and (self.width_field or self.height_field) and save: if self.width_field: setattr(new_object, self.width_field, getattr(original_object, self.width_field)) if self.height_field: @@ -661,7 +719,12 @@ class ImageField(FileField): class IntegerField(Field): empty_strings_allowed = False def get_manipulator_field_objs(self): - return [forms.IntegerField] + return [oldforms.IntegerField] + + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.IntegerField(**defaults) class IPAddressField(Field): def __init__(self, *args, **kwargs): @@ -669,7 +732,7 @@ class IPAddressField(Field): Field.__init__(self, *args, **kwargs) def get_manipulator_field_objs(self): - return [forms.IPAddressField] + return [oldforms.IPAddressField] def validate(self, field_data, all_data): validators.isValidIPAddress4(field_data, None) @@ -679,23 +742,36 @@ class NullBooleanField(Field): kwargs['null'] = True Field.__init__(self, *args, **kwargs) + def to_python(self, value): + if value in (None, True, False): return value + if value in ('None'): return None + if value in ('t', 'True', '1'): return True + if value in ('f', 'False', '0'): return False + raise validators.ValidationError, gettext("This value must be either None, True or False.") + def get_manipulator_field_objs(self): - return [forms.NullBooleanField] + return [oldforms.NullBooleanField] class PhoneNumberField(IntegerField): def get_manipulator_field_objs(self): - return [forms.PhoneNumberField] + return [oldforms.PhoneNumberField] def validate(self, field_data, all_data): validators.isValidPhone(field_data, all_data) + def formfield(self, **kwargs): + from django.contrib.localflavor.usa.forms import USPhoneNumberField + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return USPhoneNumberField(**defaults) + class PositiveIntegerField(IntegerField): def get_manipulator_field_objs(self): - return [forms.PositiveIntegerField] + return [oldforms.PositiveIntegerField] class PositiveSmallIntegerField(IntegerField): def get_manipulator_field_objs(self): - return [forms.PositiveSmallIntegerField] + return [oldforms.PositiveSmallIntegerField] class SlugField(Field): def __init__(self, *args, **kwargs): @@ -707,15 +783,20 @@ class SlugField(Field): Field.__init__(self, *args, **kwargs) def get_manipulator_field_objs(self): - return [forms.TextField] + return [oldforms.TextField] class SmallIntegerField(IntegerField): def get_manipulator_field_objs(self): - return [forms.SmallIntegerField] + return [oldforms.SmallIntegerField] class TextField(Field): def get_manipulator_field_objs(self): - return [forms.LargeTextField] + return [oldforms.LargeTextField] + + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'widget': forms.Textarea, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.CharField(**defaults) class TimeField(Field): empty_strings_allowed = False @@ -745,30 +826,45 @@ class TimeField(Field): if value is not None: # MySQL will throw a warning if microseconds are given, because it # doesn't support microseconds. - if settings.DATABASE_ENGINE == 'mysql': + if settings.DATABASE_ENGINE == 'mysql' and hasattr(value, 'microsecond'): value = value.replace(microsecond=0) value = str(value) return Field.get_db_prep_save(self, value) def get_manipulator_field_objs(self): - return [forms.TimeField] + return [oldforms.TimeField] def flatten_data(self,follow, obj = None): val = self._get_val_from_obj(obj) return {self.attname: (val is not None and val.strftime("%H:%M:%S") or '')} -class URLField(Field): + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.TimeField(**defaults) + +class URLField(CharField): def __init__(self, verbose_name=None, name=None, verify_exists=True, **kwargs): + kwargs['maxlength'] = kwargs.get('maxlength', 200) if verify_exists: kwargs.setdefault('validator_list', []).append(validators.isExistingURL) - Field.__init__(self, verbose_name, name, **kwargs) + self.verify_exists = verify_exists + CharField.__init__(self, verbose_name, name, **kwargs) def get_manipulator_field_objs(self): - return [forms.URLField] + return [oldforms.URLField] + + def get_internal_type(self): + return "CharField" + + def formfield(self, **kwargs): + defaults = {'required': not self.blank, 'verify_exists': self.verify_exists, 'label': capfirst(self.verbose_name), 'help_text': self.help_text} + defaults.update(kwargs) + return forms.URLField(**defaults) class USStateField(Field): def get_manipulator_field_objs(self): - return [forms.USStateField] + return [oldforms.USStateField] class XMLField(TextField): def __init__(self, verbose_name=None, name=None, schema_path=None, **kwargs): @@ -779,7 +875,7 @@ class XMLField(TextField): return "TextField" def get_manipulator_field_objs(self): - return [curry(forms.XMLLargeTextField, schema_path=self.schema_path)] + return [curry(oldforms.XMLLargeTextField, schema_path=self.schema_path)] class OrderingField(IntegerField): empty_strings_allowed=False @@ -792,4 +888,4 @@ class OrderingField(IntegerField): return "IntegerField" def get_manipulator_fields(self, opts, manipulator, change, name_prefix='', rel=False, follow=True): - return [forms.HiddenField(name_prefix + self.name)] + return [oldforms.HiddenField(name_prefix + self.name)] |