Merge remote branch 'veekun/media-reorganization'

[zzz-pokedex.git] / pokedex / db / tables.py

diff --git a/pokedex/db/tables.py b/pokedex/db/tables.py
index 8b8e08e..928c7ee 100644 (file)
--- a/pokedex/db/tables.py
+++ b/pokedex/db/tables.py
@@ -32,7 +32,7 @@ from sqlalchemy.ext.associationproxy import association_proxy
 from sqlalchemy.orm import backref, relation
 from sqlalchemy.orm.session import Session
 from sqlalchemy.orm.interfaces import AttributeExtension
 from sqlalchemy.orm import backref, relation
 from sqlalchemy.orm.session import Session
 from sqlalchemy.orm.interfaces import AttributeExtension

-from sqlalchemy.sql import and_
+from sqlalchemy.sql import and_, or_

 from sqlalchemy.schema import ColumnDefault
 from sqlalchemy.types import *
 
 from sqlalchemy.schema import ColumnDefault
 from sqlalchemy.types import *
 


@@ -62,6 +62,9 @@ class TableSuperclass(object):
     def __str__(self):
         return unicode(self).encode('utf8')
 
     def __str__(self):
         return unicode(self).encode('utf8')
 

+    def __repr__(self):
+        return unicode(self).encode('utf8')
+

 mapped_classes = []
 class TableMetaclass(DeclarativeMeta):
     def __init__(cls, name, bases, attrs):
 mapped_classes = []
 class TableMetaclass(DeclarativeMeta):
     def __init__(cls, name, bases, attrs):


@@ -121,9 +124,9 @@ create_translation_table('ability_names', Ability, 'names',
         info=dict(description="The name", format='plaintext', official=True, ripped=True)),
 )
 create_translation_table('ability_prose', Ability, 'prose',
         info=dict(description="The name", format='plaintext', official=True, ripped=True)),
 )
 create_translation_table('ability_prose', Ability, 'prose',

-    effect = Column(markdown.MarkdownColumn(5120), nullable=False,
+    effect = Column(markdown.MarkdownColumn(5120), nullable=True,

         info=dict(description="A detailed description of this ability's effect", format='markdown')),
         info=dict(description="A detailed description of this ability's effect", format='markdown')),

-    short_effect = Column(markdown.MarkdownColumn(255), nullable=False,
+    short_effect = Column(markdown.MarkdownColumn(512), nullable=True,

         info=dict(description="A short summary of this ability's effect", format='markdown')),
 )
 
         info=dict(description="A short summary of this ability's effect", format='markdown')),
 )
 


@@ -232,9 +235,9 @@ class ContestEffect(TableBase):
         info=dict(description="The base number of hearts the user's opponent loses"))
 
 create_translation_table('contest_effect_prose', ContestEffect, 'prose',
         info=dict(description="The base number of hearts the user's opponent loses"))
 
 create_translation_table('contest_effect_prose', ContestEffect, 'prose',

-    flavor_text = Column(Unicode(64), nullable=False,
+    flavor_text = Column(Unicode(64), nullable=True,

         info=dict(description="The in-game description of this effect", official=True, format='gametext')),
         info=dict(description="The in-game description of this effect", official=True, format='gametext')),

-    effect = Column(Unicode(255), nullable=False,
+    effect = Column(Unicode(255), nullable=True,

         info=dict(description="A detailed description of the effect", format='plaintext')),
 )
 
         info=dict(description="A detailed description of the effect", format='plaintext')),
 )
 


@@ -250,11 +253,11 @@ class ContestType(TableBase):
 
 create_translation_table('contest_type_names', ContestType, 'names',
     relation_lazy='joined',
 
 create_translation_table('contest_type_names', ContestType, 'names',
     relation_lazy='joined',

-    name = Column(Unicode(6), nullable=False, index=True,
+    name = Column(Unicode(6), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=True)),
         info=dict(description="The name", format='plaintext', official=True)),

-    flavor = Column(Unicode(6), nullable=False,
+    flavor = Column(Unicode(6), nullable=True,

         info=dict(description="The name of the corresponding Berry flavor", official=True, format='plaintext')),
         info=dict(description="The name of the corresponding Berry flavor", official=True, format='plaintext')),

-    color = Column(Unicode(6), nullable=False,
+    color = Column(Unicode(6), nullable=True,

         info=dict(description=u"The name of the corresponding Pokéblock color", official=True, format='plaintext')),
 )
 
         info=dict(description=u"The name of the corresponding Pokéblock color", official=True, format='plaintext')),
 )
 


@@ -500,9 +503,9 @@ create_translation_table('item_names', Item, 'names',
         info=dict(description="The name", format='plaintext', official=True, ripped=True)),
 )
 create_translation_table('item_prose', Item, 'prose',
         info=dict(description="The name", format='plaintext', official=True, ripped=True)),
 )
 create_translation_table('item_prose', Item, 'prose',

-    short_effect = Column(markdown.MarkdownColumn(256), nullable=False,
-        info=dict(description="A short summary of the effect", format='plaintext')),
-    effect = Column(markdown.MarkdownColumn(5120), nullable=False,
+    short_effect = Column(markdown.MarkdownColumn(256), nullable=True,
+        info=dict(description="A short summary of the effect", format='markdown')),
+    effect = Column(markdown.MarkdownColumn(5120), nullable=True,

         info=dict(description=u"Detailed description of the item's effect.", format='markdown')),
 )
 create_translation_table('item_flavor_summaries', Item, 'flavor_summaries',
         info=dict(description=u"Detailed description of the item's effect.", format='markdown')),
 )
 create_translation_table('item_flavor_summaries', Item, 'flavor_summaries',


@@ -540,9 +543,9 @@ class ItemFlag(TableBase):
         info=dict(description="Identifier of the flag", format='identifier'))
 
 create_translation_table('item_flag_prose', ItemFlag, 'prose',
         info=dict(description="Identifier of the flag", format='identifier'))
 
 create_translation_table('item_flag_prose', ItemFlag, 'prose',

-    name = Column(Unicode(24), nullable=False, index=True,
+    name = Column(Unicode(24), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(Unicode(64), nullable=False,
+    description = Column(Unicode(64), nullable=True,

         info=dict(description="Short description of the flag", format='plaintext')),
 )
 
         info=dict(description="Short description of the flag", format='plaintext')),
 )
 


@@ -784,9 +787,9 @@ class MoveDamageClass(TableBase):
 
 create_translation_table('move_damage_class_prose', MoveDamageClass, 'prose',
     relation_lazy='joined',
 
 create_translation_table('move_damage_class_prose', MoveDamageClass, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(16), nullable=False, index=True,
+    name = Column(Unicode(16), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(Unicode(64), nullable=False,
+    description = Column(Unicode(64), nullable=True,

         info=dict(description="A description of the class", format='plaintext')),
 )
 
         info=dict(description="A description of the class", format='plaintext')),
 )
 


@@ -799,40 +802,12 @@ class MoveEffect(TableBase):
         info=dict(description="A numeric ID"))
 
 create_translation_table('move_effect_prose', MoveEffect, 'prose',
         info=dict(description="A numeric ID"))
 
 create_translation_table('move_effect_prose', MoveEffect, 'prose',

-    short_effect = Column(Unicode(256), nullable=False,
+    short_effect = Column(Unicode(256), nullable=True,

         info=dict(description="A short summary of the effect", format='plaintext')),
         info=dict(description="A short summary of the effect", format='plaintext')),

-    effect = Column(Unicode(5120), nullable=False,
-        info=dict(description="A detailed description of the effect", format='plaintext')),
+    effect = Column(Unicode(5120), nullable=True,
+        info=dict(description="A detailed description of the effect", format='markdown')),

 )
 
 )
 

-class MoveEffectCategory(TableBase):
-    u"""Category of a move effect
-    """
-    __tablename__ = 'move_effect_categories'
-    __singlename__ = 'move_effect_category'
-    id = Column(Integer, primary_key=True, nullable=False,
-        info=dict(description="A numeric ID"))
-    identifier = Column(Unicode(64), nullable=False,
-        info=dict(description="An identifier", format='identifier'))
-    can_affect_user = Column(Boolean, nullable=False,
-        info=dict(description="Set if the user can be affected"))
-
-create_translation_table('move_effect_category_prose', MoveEffectCategory, 'prose',
-    name = Column(Unicode(64), nullable=False, index=True,
-        info=dict(description="The name", format='plaintext', official=False)),
-)
-
-class MoveEffectCategoryMap(TableBase):
-    u"""Maps a move effect category to a move effect
-    """
-    __tablename__ = 'move_effect_category_map'
-    move_effect_id = Column(Integer, ForeignKey('move_effects.id'), primary_key=True, nullable=False,
-        info=dict(description="ID of the move effect"))
-    move_effect_category_id = Column(Integer, ForeignKey('move_effect_categories.id'), primary_key=True, nullable=False,
-        info=dict(description="ID of the category"))
-    affects_user = Column(Boolean, primary_key=True, nullable=False,
-        info=dict(description="Set if the user is affected"))
-

 class MoveEffectChangelog(TableBase):
     """History of changes to move effects across main game versions."""
     __tablename__ = 'move_effect_changelog'
 class MoveEffectChangelog(TableBase):
     """History of changes to move effects across main game versions."""
     __tablename__ = 'move_effect_changelog'


@@ -877,9 +852,9 @@ class MoveFlagType(TableBase):
 
 create_translation_table('move_flag_type_prose', MoveFlagType, 'prose',
     relation_lazy='joined',
 
 create_translation_table('move_flag_type_prose', MoveFlagType, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(32), nullable=False, index=True,
+    name = Column(Unicode(32), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(markdown.MarkdownColumn(128), nullable=False,
+    description = Column(markdown.MarkdownColumn(256), nullable=True,

         info=dict(description="A short description of the flag", format='markdown')),
 )
 
         info=dict(description="A short description of the flag", format='markdown')),
 )
 


@@ -935,7 +910,7 @@ class MoveMetaAilment(TableBase):
     __singlename__ = 'move_meta_ailment'
     id = Column(Integer, primary_key=True, nullable=False, autoincrement=False,
         info=dict(description="A numeric ID"))
     __singlename__ = 'move_meta_ailment'
     id = Column(Integer, primary_key=True, nullable=False, autoincrement=False,
         info=dict(description="A numeric ID"))

-    identifier = Column(Unicode(24), nullable=False,
+    identifier = Column(Unicode(24), nullable=False, index=True, unique=True,

         info=dict(description="An identifier", format='identifier'))
 
 create_translation_table('move_meta_ailment_names', MoveMetaAilment, 'names',
         info=dict(description="An identifier", format='identifier'))
 
 create_translation_table('move_meta_ailment_names', MoveMetaAilment, 'names',


@@ -950,6 +925,8 @@ class MoveMetaCategory(TableBase):
     __singlename__ = 'move_meta_category'
     id = Column(Integer, primary_key=True, nullable=False,
         info=dict(description="A numeric ID"))
     __singlename__ = 'move_meta_category'
     id = Column(Integer, primary_key=True, nullable=False,
         info=dict(description="A numeric ID"))

+    identifier = Column(Unicode(32), nullable=False, index=True, unique=True,
+        info=dict(description="An identifier", format='identifier'))

 
 create_translation_table('move_meta_category_prose', MoveMetaCategory, 'prose',
     relation_lazy='joined',
 
 create_translation_table('move_meta_category_prose', MoveMetaCategory, 'prose',
     relation_lazy='joined',


@@ -979,9 +956,9 @@ class MoveTarget(TableBase):
 
 create_translation_table('move_target_prose', MoveTarget, 'prose',
     relation_lazy='joined',
 
 create_translation_table('move_target_prose', MoveTarget, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(32), nullable=False, index=True,
+    name = Column(Unicode(32), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(Unicode(128), nullable=False,
+    description = Column(Unicode(128), nullable=True,

         info=dict(description="A description", format='plaintext')),
 )
 
         info=dict(description="A description", format='plaintext')),
 )
 


@@ -1072,9 +1049,9 @@ class Pokedex(TableBase):
 
 create_translation_table('pokedex_prose', Pokedex, 'prose',
     relation_lazy='joined',
 
 create_translation_table('pokedex_prose', Pokedex, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(16), nullable=False, index=True,
+    name = Column(Unicode(16), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(Unicode(512), nullable=False,
+    description = Column(Unicode(512), nullable=True,

         info=dict(description=u"A longer description of the Pokédex", format='plaintext')),
 )
 
         info=dict(description=u"A longer description of the Pokédex", format='plaintext')),
 )
 


@@ -1091,6 +1068,8 @@ class Pokemon(TableBase):
         info=dict(description=u"ID of the generation this species first appeared in"))
     evolution_chain_id = Column(Integer, ForeignKey('evolution_chains.id'),
         info=dict(description=u"ID of the species' evolution chain (a.k.a. family)"))
         info=dict(description=u"ID of the generation this species first appeared in"))
     evolution_chain_id = Column(Integer, ForeignKey('evolution_chains.id'),
         info=dict(description=u"ID of the species' evolution chain (a.k.a. family)"))

+    evolves_from_pokemon_id = Column(Integer, ForeignKey('pokemon.id'), nullable=True,
+        info=dict(description=u"The Pokémon species from which this one evolves"))

     height = Column(Integer, nullable=False,
         info=dict(description=u"The height of the Pokémon, in decimeters (tenths of a meter)"))
     weight = Column(Integer, nullable=False,
     height = Column(Integer, nullable=False,
         info=dict(description=u"The height of the Pokémon, in decimeters (tenths of a meter)"))
     weight = Column(Integer, nullable=False,


@@ -1202,9 +1181,9 @@ class Pokemon(TableBase):
 
 create_translation_table('pokemon_names', Pokemon, 'names',
     relation_lazy='joined',
 
 create_translation_table('pokemon_names', Pokemon, 'names',
     relation_lazy='joined',

-    name = Column(Unicode(20), nullable=False, index=True,
+    name = Column(Unicode(20), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=True, ripped=True)),
         info=dict(description="The name", format='plaintext', official=True, ripped=True)),

-    species = Column(Unicode(16), nullable=False,
+    species = Column(Unicode(16), nullable=True,

         info=dict(description=u'The short flavor text, such as "Seed" or "Lizard"; usually affixed with the word "Pokémon"',
         official=True, format='plaintext')),
 )
         info=dict(description=u'The short flavor text, such as "Seed" or "Lizard"; usually affixed with the word "Pokémon"',
         official=True, format='plaintext')),
 )


@@ -1272,9 +1251,9 @@ class PokemonEvolution(TableBase):
     Any condition may be null if it does not apply for a particular Pokémon.
     """
     __tablename__ = 'pokemon_evolution'
     Any condition may be null if it does not apply for a particular Pokémon.
     """
     __tablename__ = 'pokemon_evolution'

-    from_pokemon_id = Column(Integer, ForeignKey('pokemon.id'), nullable=False,
-        info=dict(description=u"The ID of the pre-evolution Pokémon."))
-    to_pokemon_id = Column(Integer, ForeignKey('pokemon.id'), primary_key=True, nullable=False, autoincrement=False,
+    id = Column(Integer, primary_key=True, nullable=False,
+        info=dict(description=u"A numeric ID"))
+    evolved_pokemon_id = Column(Integer, ForeignKey('pokemon.id'), nullable=False,

         info=dict(description=u"The ID of the post-evolution Pokémon."))
     evolution_trigger_id = Column(Integer, ForeignKey('evolution_triggers.id'), nullable=False,
         info=dict(description=u"The ID of the evolution trigger."))
         info=dict(description=u"The ID of the post-evolution Pokémon."))
     evolution_trigger_id = Column(Integer, ForeignKey('evolution_triggers.id'), nullable=False,
         info=dict(description=u"The ID of the evolution trigger."))


@@ -1341,13 +1320,6 @@ class PokemonForm(TableBase):
         info=dict(description=u'The order in which forms should be sorted.  Multiple forms may have equal order, in which case they should fall back on sorting by name.'))
 
     @property
         info=dict(description=u'The order in which forms should be sorted.  Multiple forms may have equal order, in which case they should fall back on sorting by name.'))
 
     @property

-    def pokemon(self):
-        u"""Returns the Pokémon for this form, using the form base as fallback.
-        """
-
-        return self.unique_pokemon or self.form_base_pokemon
-
-    @property

     def full_name(self):
         u"""Returns the full name of this form, e.g. "Plant Cloak"."""
 
     def full_name(self):
         u"""Returns the full name of this form, e.g. "Plant Cloak"."""
 


@@ -1389,7 +1361,7 @@ PokemonFormGroup.id = PokemonFormGroup.pokemon_id
 create_translation_table('pokemon_form_group_prose', PokemonFormGroup, 'prose',
     term = Column(Unicode(16), nullable=True,
         info=dict(description=u"The term for this Pokémon's forms, e.g. \"Cloak\" for Burmy or \"Forme\" for Deoxys.", official=True, format='plaintext')),
 create_translation_table('pokemon_form_group_prose', PokemonFormGroup, 'prose',
     term = Column(Unicode(16), nullable=True,
         info=dict(description=u"The term for this Pokémon's forms, e.g. \"Cloak\" for Burmy or \"Forme\" for Deoxys.", official=True, format='plaintext')),

-    description = Column(markdown.MarkdownColumn(1024), nullable=False,
+    description = Column(markdown.MarkdownColumn(1024), nullable=True,

         info=dict(description=u"Description of how the forms work", format='markdown')),
 )
 
         info=dict(description=u"Description of how the forms work", format='markdown')),
 )
 


@@ -1481,9 +1453,9 @@ class PokemonMoveMethod(TableBase):
 
 create_translation_table('pokemon_move_method_prose', PokemonMoveMethod, 'prose',
     relation_lazy='joined',
 
 create_translation_table('pokemon_move_method_prose', PokemonMoveMethod, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(64), nullable=False, index=True,
+    name = Column(Unicode(64), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    description = Column(Unicode(255), nullable=False,
+    description = Column(Unicode(255), nullable=True,

         info=dict(description=u"A detailed description of how the method works", format='plaintext')),
 )
 
         info=dict(description=u"A detailed description of how the method works", format='plaintext')),
 )
 


@@ -1499,9 +1471,9 @@ class PokemonShape(TableBase):
 
 create_translation_table('pokemon_shape_prose', PokemonShape, 'prose',
     relation_lazy='joined',
 
 create_translation_table('pokemon_shape_prose', PokemonShape, 'prose',
     relation_lazy='joined',

-    name = Column(Unicode(24), nullable=False, index=True,
+    name = Column(Unicode(24), nullable=True, index=True,

         info=dict(description="The name", format='plaintext', official=False)),
         info=dict(description="The name", format='plaintext', official=False)),

-    awesome_name = Column(Unicode(16), nullable=False,
+    awesome_name = Column(Unicode(16), nullable=True,

         info=dict(description=u"A splendiferous name of the body shape", format='plaintext')),
 )
 
         info=dict(description=u"A splendiferous name of the body shape", format='plaintext')),
 )
 


@@ -1897,12 +1869,9 @@ MoveChangelog.effect_map = markdown.MoveEffectPropertyMap('effect_map')
 MoveChangelog.short_effect = markdown.MoveEffectProperty('short_effect')
 MoveChangelog.short_effect_map = markdown.MoveEffectPropertyMap('short_effect_map')
 
 MoveChangelog.short_effect = markdown.MoveEffectProperty('short_effect')
 MoveChangelog.short_effect_map = markdown.MoveEffectPropertyMap('short_effect_map')
 

-MoveEffect.category_map = relation(MoveEffectCategoryMap)
-MoveEffect.categories = association_proxy('category_map', 'category')

 MoveEffect.changelog = relation(MoveEffectChangelog,
     order_by=MoveEffectChangelog.changed_in_version_group_id.desc(),
     backref='move_effect')
 MoveEffect.changelog = relation(MoveEffectChangelog,
     order_by=MoveEffectChangelog.changed_in_version_group_id.desc(),
     backref='move_effect')

-MoveEffectCategoryMap.category = relation(MoveEffectCategory)

 
 MoveEffectChangelog.changed_in = relation(VersionGroup,
     innerjoin=True, lazy='joined',
 
 MoveEffectChangelog.changed_in = relation(VersionGroup,
     innerjoin=True, lazy='joined',


@@ -2014,11 +1983,13 @@ Pokemon.egg_groups = relation(EggGroup,
 Pokemon.evolution_chain = relation(EvolutionChain,
     innerjoin=True,
     backref=backref('pokemon', order_by=Pokemon.order.asc()))
 Pokemon.evolution_chain = relation(EvolutionChain,
     innerjoin=True,
     backref=backref('pokemon', order_by=Pokemon.order.asc()))

-Pokemon.child_pokemon = relation(Pokemon,
-    primaryjoin=Pokemon.id==PokemonEvolution.from_pokemon_id,
-    secondary=PokemonEvolution.__table__,
-    secondaryjoin=PokemonEvolution.to_pokemon_id==Pokemon.id,
-    backref=backref('parent_pokemon', uselist=False))
+Pokemon.parent_pokemon = relation(Pokemon,
+    primaryjoin=Pokemon.evolves_from_pokemon_id==Pokemon.id,
+    remote_side=[Pokemon.id],
+    backref='child_pokemon')
+Pokemon.evolutions = relation(PokemonEvolution,
+    primaryjoin=Pokemon.id==PokemonEvolution.evolved_pokemon_id,
+    backref=backref('evolved_pokemon', innerjoin=True, lazy='joined'))

 Pokemon.flavor_text = relation(PokemonFlavorText,
     order_by=PokemonFlavorText.version_id.asc(),
     backref='pokemon')
 Pokemon.flavor_text = relation(PokemonFlavorText,
     order_by=PokemonFlavorText.version_id.asc(),
     backref='pokemon')


@@ -2054,20 +2025,6 @@ Pokemon.types = relation(Type,
 PokemonDexNumber.pokedex = relation(Pokedex,
     innerjoin=True, lazy='joined')
 
 PokemonDexNumber.pokedex = relation(Pokedex,
     innerjoin=True, lazy='joined')
 

-PokemonEvolution.from_pokemon = relation(Pokemon,
-    primaryjoin=PokemonEvolution.from_pokemon_id==Pokemon.id,
-    innerjoin=True,
-    backref='child_evolutions')
-PokemonEvolution.to_pokemon = relation(Pokemon,
-    primaryjoin=PokemonEvolution.to_pokemon_id==Pokemon.id,
-    innerjoin=True,
-    backref=backref('parent_evolution', uselist=False))
-PokemonEvolution.child_evolutions = relation(PokemonEvolution,
-    primaryjoin=PokemonEvolution.from_pokemon_id==PokemonEvolution.to_pokemon_id,
-    foreign_keys=[PokemonEvolution.to_pokemon_id],
-    backref=backref('parent_evolution',
-        remote_side=[PokemonEvolution.from_pokemon_id],
-        uselist=False))

 PokemonEvolution.trigger = relation(EvolutionTrigger,
     innerjoin=True, lazy='joined',
     backref='evolutions')
 PokemonEvolution.trigger = relation(EvolutionTrigger,
     innerjoin=True, lazy='joined',
     backref='evolutions')


@@ -2096,6 +2053,12 @@ PokemonForm.form_base_pokemon = relation(Pokemon,
 PokemonForm.unique_pokemon = relation(Pokemon,
     primaryjoin=PokemonForm.unique_pokemon_id==Pokemon.id,
     backref=backref('unique_form', uselist=False))
 PokemonForm.unique_pokemon = relation(Pokemon,
     primaryjoin=PokemonForm.unique_pokemon_id==Pokemon.id,
     backref=backref('unique_form', uselist=False))

+PokemonForm.pokemon = relation(Pokemon,
+    primaryjoin=or_(
+        PokemonForm.unique_pokemon_id==Pokemon.id,
+        and_(PokemonForm.unique_pokemon_id==None, 
+            PokemonForm.form_base_pokemon_id==Pokemon.id)
+        ), uselist=False)

 PokemonForm.version_group = relation(VersionGroup,
     innerjoin=True)
 PokemonForm.form_group = association_proxy('form_base_pokemon', 'form_group')
 PokemonForm.version_group = relation(VersionGroup,
     innerjoin=True)
 PokemonForm.form_group = association_proxy('form_base_pokemon', 'form_group')