1 """

     2 26. Invalid models

     3 

     4 This example exists purely to point out errors in models.

     5 """

     6 

     7 from django.db import models

     8 

     9 class FieldErrors(models.Model):

    10     charfield = models.CharField()

    11     floatfield = models.FloatField()

    12     filefield = models.FileField()

    13     prepopulate = models.CharField(maxlength=10, prepopulate_from='bad')

    14     choices = models.CharField(maxlength=10, choices='bad')

    15     choices2 = models.CharField(maxlength=10, choices=[(1,2,3),(1,2,3)])

    16     index = models.CharField(maxlength=10, db_index='bad')

    17 

    18 class Target(models.Model):

    19     tgt_safe = models.CharField(maxlength=10)

    20     clash1 = models.CharField(maxlength=10)

    21     clash2 = models.CharField(maxlength=10)

    22 

    23     clash1_set = models.CharField(maxlength=10)

    24 

    25 class Clash1(models.Model):

    26     src_safe = models.CharField(maxlength=10, core=True)

    27 

    28     foreign = models.ForeignKey(Target)

    29     m2m = models.ManyToManyField(Target)

    30 

    31 class Clash2(models.Model):

    32     src_safe = models.CharField(maxlength=10, core=True)

    33 

    34     foreign_1 = models.ForeignKey(Target, related_name='id')

    35     foreign_2 = models.ForeignKey(Target, related_name='src_safe')

    36 

    37     m2m_1 = models.ManyToManyField(Target, related_name='id')

    38     m2m_2 = models.ManyToManyField(Target, related_name='src_safe')

    39 

    40 class Target2(models.Model):

    41     clash3 = models.CharField(maxlength=10)

    42     foreign_tgt = models.ForeignKey(Target)

    43     clashforeign_set = models.ForeignKey(Target)

    44 

    45     m2m_tgt = models.ManyToManyField(Target)

    46     clashm2m_set = models.ManyToManyField(Target)

    47 

    48 class Clash3(models.Model):

    49     src_safe = models.CharField(maxlength=10, core=True)

    50     

    51     foreign_1 = models.ForeignKey(Target2, related_name='foreign_tgt')

    52     foreign_2 = models.ForeignKey(Target2, related_name='m2m_tgt')

    53 

    54     m2m_1 = models.ManyToManyField(Target2, related_name='foreign_tgt')

    55     m2m_2 = models.ManyToManyField(Target2, related_name='m2m_tgt')

    56 

    57 class ClashForeign(models.Model):

    58     foreign = models.ForeignKey(Target2)

    59 

    60 class ClashM2M(models.Model):

    61     m2m = models.ManyToManyField(Target2)

    62 

    63 class SelfClashForeign(models.Model):

    64     src_safe = models.CharField(maxlength=10, core=True)

    65     selfclashforeign = models.CharField(maxlength=10)

    66 

    67     selfclashforeign_set = models.ForeignKey("SelfClashForeign")

    68     foreign_1 = models.ForeignKey("SelfClashForeign", related_name='id')

    69     foreign_2 = models.ForeignKey("SelfClashForeign", related_name='src_safe')

    70 

    71 class ValidM2M(models.Model):

    72     src_safe = models.CharField(maxlength=10)

    73     validm2m = models.CharField(maxlength=10)

    74 

    75     # M2M fields are symmetrical by default. Symmetrical M2M fields

    76     # on self don't require a related accessor, so many potential

    77     # clashes are avoided.

    78     validm2m_set = models.ManyToManyField("ValidM2M")

    79     

    80     m2m_1 = models.ManyToManyField("ValidM2M", related_name='id')

    81     m2m_2 = models.ManyToManyField("ValidM2M", related_name='src_safe')

    82 

    83     m2m_3 = models.ManyToManyField('self')

    84     m2m_4 = models.ManyToManyField('self')

    85 

    86 class SelfClashM2M(models.Model):

    87     src_safe = models.CharField(maxlength=10)

    88     selfclashm2m = models.CharField(maxlength=10)

    89 

    90     # Non-symmetrical M2M fields _do_ have related accessors, so 

    91     # there is potential for clashes.

    92     selfclashm2m_set = models.ManyToManyField("SelfClashM2M", symmetrical=False)

    93     

    94     m2m_1 = models.ManyToManyField("SelfClashM2M", related_name='id', symmetrical=False)

    95     m2m_2 = models.ManyToManyField("SelfClashM2M", related_name='src_safe', symmetrical=False)

    96 

    97     m2m_3 = models.ManyToManyField('self', symmetrical=False)

    98     m2m_4 = models.ManyToManyField('self', symmetrical=False)

    99 

   100 model_errors = """invalid_models.fielderrors: "charfield": CharFields require a "maxlength" attribute.

   101 invalid_models.fielderrors: "floatfield": FloatFields require a "decimal_places" attribute.

   102 invalid_models.fielderrors: "floatfield": FloatFields require a "max_digits" attribute.

   103 invalid_models.fielderrors: "filefield": FileFields require an "upload_to" attribute.

   104 invalid_models.fielderrors: "prepopulate": prepopulate_from should be a list or tuple.

   105 invalid_models.fielderrors: "choices": "choices" should be iterable (e.g., a tuple or list).

   106 invalid_models.fielderrors: "choices2": "choices" should be a sequence of two-tuples.

   107 invalid_models.fielderrors: "choices2": "choices" should be a sequence of two-tuples.

   108 invalid_models.fielderrors: "index": "db_index" should be either None, True or False.

   109 invalid_models.clash1: Accessor for field 'foreign' clashes with field 'Target.clash1_set'. Add a related_name argument to the definition for 'foreign'.

   110 invalid_models.clash1: Accessor for field 'foreign' clashes with related m2m field 'Target.clash1_set'. Add a related_name argument to the definition for 'foreign'.

   111 invalid_models.clash1: Reverse query name for field 'foreign' clashes with field 'Target.clash1'. Add a related_name argument to the definition for 'foreign'.

   112 invalid_models.clash1: Accessor for m2m field 'm2m' clashes with field 'Target.clash1_set'. Add a related_name argument to the definition for 'm2m'.

   113 invalid_models.clash1: Accessor for m2m field 'm2m' clashes with related field 'Target.clash1_set'. Add a related_name argument to the definition for 'm2m'.

   114 invalid_models.clash1: Reverse query name for m2m field 'm2m' clashes with field 'Target.clash1'. Add a related_name argument to the definition for 'm2m'.

   115 invalid_models.clash2: Accessor for field 'foreign_1' clashes with field 'Target.id'. Add a related_name argument to the definition for 'foreign_1'.

   116 invalid_models.clash2: Accessor for field 'foreign_1' clashes with related m2m field 'Target.id'. Add a related_name argument to the definition for 'foreign_1'.

   117 invalid_models.clash2: Reverse query name for field 'foreign_1' clashes with field 'Target.id'. Add a related_name argument to the definition for 'foreign_1'.

   118 invalid_models.clash2: Reverse query name for field 'foreign_1' clashes with related m2m field 'Target.id'. Add a related_name argument to the definition for 'foreign_1'.

   119 invalid_models.clash2: Accessor for field 'foreign_2' clashes with related m2m field 'Target.src_safe'. Add a related_name argument to the definition for 'foreign_2'.

   120 invalid_models.clash2: Reverse query name for field 'foreign_2' clashes with related m2m field 'Target.src_safe'. Add a related_name argument to the definition for 'foreign_2'.

   121 invalid_models.clash2: Accessor for m2m field 'm2m_1' clashes with field 'Target.id'. Add a related_name argument to the definition for 'm2m_1'.

   122 invalid_models.clash2: Accessor for m2m field 'm2m_1' clashes with related field 'Target.id'. Add a related_name argument to the definition for 'm2m_1'.

   123 invalid_models.clash2: Reverse query name for m2m field 'm2m_1' clashes with field 'Target.id'. Add a related_name argument to the definition for 'm2m_1'.

   124 invalid_models.clash2: Reverse query name for m2m field 'm2m_1' clashes with related field 'Target.id'. Add a related_name argument to the definition for 'm2m_1'.

   125 invalid_models.clash2: Accessor for m2m field 'm2m_2' clashes with related field 'Target.src_safe'. Add a related_name argument to the definition for 'm2m_2'.

   126 invalid_models.clash2: Reverse query name for m2m field 'm2m_2' clashes with related field 'Target.src_safe'. Add a related_name argument to the definition for 'm2m_2'.

   127 invalid_models.clash3: Accessor for field 'foreign_1' clashes with field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'foreign_1'.

   128 invalid_models.clash3: Accessor for field 'foreign_1' clashes with related m2m field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'foreign_1'.

   129 invalid_models.clash3: Reverse query name for field 'foreign_1' clashes with field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'foreign_1'.

   130 invalid_models.clash3: Reverse query name for field 'foreign_1' clashes with related m2m field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'foreign_1'.

   131 invalid_models.clash3: Accessor for field 'foreign_2' clashes with m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'foreign_2'.

   132 invalid_models.clash3: Accessor for field 'foreign_2' clashes with related m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'foreign_2'.

   133 invalid_models.clash3: Reverse query name for field 'foreign_2' clashes with m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'foreign_2'.

   134 invalid_models.clash3: Reverse query name for field 'foreign_2' clashes with related m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'foreign_2'.

   135 invalid_models.clash3: Accessor for m2m field 'm2m_1' clashes with field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'm2m_1'.

   136 invalid_models.clash3: Accessor for m2m field 'm2m_1' clashes with related field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'm2m_1'.

   137 invalid_models.clash3: Reverse query name for m2m field 'm2m_1' clashes with field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'm2m_1'.

   138 invalid_models.clash3: Reverse query name for m2m field 'm2m_1' clashes with related field 'Target2.foreign_tgt'. Add a related_name argument to the definition for 'm2m_1'.

   139 invalid_models.clash3: Accessor for m2m field 'm2m_2' clashes with m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'm2m_2'.

   140 invalid_models.clash3: Accessor for m2m field 'm2m_2' clashes with related field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'm2m_2'.

   141 invalid_models.clash3: Reverse query name for m2m field 'm2m_2' clashes with m2m field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'm2m_2'.

   142 invalid_models.clash3: Reverse query name for m2m field 'm2m_2' clashes with related field 'Target2.m2m_tgt'. Add a related_name argument to the definition for 'm2m_2'.

   143 invalid_models.clashforeign: Accessor for field 'foreign' clashes with field 'Target2.clashforeign_set'. Add a related_name argument to the definition for 'foreign'.

   144 invalid_models.clashm2m: Accessor for m2m field 'm2m' clashes with m2m field 'Target2.clashm2m_set'. Add a related_name argument to the definition for 'm2m'.

   145 invalid_models.target2: Accessor for field 'foreign_tgt' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'foreign_tgt'.

   146 invalid_models.target2: Accessor for field 'foreign_tgt' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'foreign_tgt'.

   147 invalid_models.target2: Accessor for field 'foreign_tgt' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'foreign_tgt'.

   148 invalid_models.target2: Accessor for field 'clashforeign_set' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'clashforeign_set'.

   149 invalid_models.target2: Accessor for field 'clashforeign_set' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'clashforeign_set'.

   150 invalid_models.target2: Accessor for field 'clashforeign_set' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'clashforeign_set'.

   151 invalid_models.target2: Accessor for m2m field 'm2m_tgt' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'm2m_tgt'.

   152 invalid_models.target2: Accessor for m2m field 'm2m_tgt' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'm2m_tgt'.

   153 invalid_models.target2: Accessor for m2m field 'm2m_tgt' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'm2m_tgt'.

   154 invalid_models.target2: Accessor for m2m field 'm2m_tgt' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'm2m_tgt'.

   155 invalid_models.target2: Accessor for m2m field 'm2m_tgt' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'm2m_tgt'.

   156 invalid_models.target2: Accessor for m2m field 'clashm2m_set' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'clashm2m_set'.

   157 invalid_models.target2: Accessor for m2m field 'clashm2m_set' clashes with related field 'Target.target2_set'. Add a related_name argument to the definition for 'clashm2m_set'.

   158 invalid_models.target2: Accessor for m2m field 'clashm2m_set' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'clashm2m_set'.

   159 invalid_models.target2: Accessor for m2m field 'clashm2m_set' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'clashm2m_set'.

   160 invalid_models.target2: Accessor for m2m field 'clashm2m_set' clashes with related m2m field 'Target.target2_set'. Add a related_name argument to the definition for 'clashm2m_set'.

   161 invalid_models.selfclashforeign: Accessor for field 'selfclashforeign_set' clashes with field 'SelfClashForeign.selfclashforeign_set'. Add a related_name argument to the definition for 'selfclashforeign_set'.

   162 invalid_models.selfclashforeign: Reverse query name for field 'selfclashforeign_set' clashes with field 'SelfClashForeign.selfclashforeign'. Add a related_name argument to the definition for 'selfclashforeign_set'.

   163 invalid_models.selfclashforeign: Accessor for field 'foreign_1' clashes with field 'SelfClashForeign.id'. Add a related_name argument to the definition for 'foreign_1'.

   164 invalid_models.selfclashforeign: Reverse query name for field 'foreign_1' clashes with field 'SelfClashForeign.id'. Add a related_name argument to the definition for 'foreign_1'.

   165 invalid_models.selfclashforeign: Accessor for field 'foreign_2' clashes with field 'SelfClashForeign.src_safe'. Add a related_name argument to the definition for 'foreign_2'.

   166 invalid_models.selfclashforeign: Reverse query name for field 'foreign_2' clashes with field 'SelfClashForeign.src_safe'. Add a related_name argument to the definition for 'foreign_2'.

   167 invalid_models.selfclashm2m: Accessor for m2m field 'selfclashm2m_set' clashes with m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'selfclashm2m_set'.

   168 invalid_models.selfclashm2m: Reverse query name for m2m field 'selfclashm2m_set' clashes with field 'SelfClashM2M.selfclashm2m'. Add a related_name argument to the definition for 'selfclashm2m_set'.

   169 invalid_models.selfclashm2m: Accessor for m2m field 'selfclashm2m_set' clashes with related m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'selfclashm2m_set'.

   170 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_1' clashes with field 'SelfClashM2M.id'. Add a related_name argument to the definition for 'm2m_1'.

   171 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_2' clashes with field 'SelfClashM2M.src_safe'. Add a related_name argument to the definition for 'm2m_2'.

   172 invalid_models.selfclashm2m: Reverse query name for m2m field 'm2m_1' clashes with field 'SelfClashM2M.id'. Add a related_name argument to the definition for 'm2m_1'.

   173 invalid_models.selfclashm2m: Reverse query name for m2m field 'm2m_2' clashes with field 'SelfClashM2M.src_safe'. Add a related_name argument to the definition for 'm2m_2'.

   174 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_3' clashes with m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_3'.

   175 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_3' clashes with related m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_3'.

   176 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_3' clashes with related m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_3'.

   177 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_4' clashes with m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_4'.

   178 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_4' clashes with related m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_4'.

   179 invalid_models.selfclashm2m: Accessor for m2m field 'm2m_4' clashes with related m2m field 'SelfClashM2M.selfclashm2m_set'. Add a related_name argument to the definition for 'm2m_4'.

   180 invalid_models.selfclashm2m: Reverse query name for m2m field 'm2m_3' clashes with field 'SelfClashM2M.selfclashm2m'. Add a related_name argument to the definition for 'm2m_3'.

   181 invalid_models.selfclashm2m: Reverse query name for m2m field 'm2m_4' clashes with field 'SelfClashM2M.selfclashm2m'. Add a related_name argument to the definition for 'm2m_4'.

   182 """