Add past Pokemon type data

data/v2/build.py

@@ -2021,6 +2021,16 @@ def csv_record_to_objects(info):
 
     build_generic((PokemonType,), "pokemon_types.csv", csv_record_to_objects)
 
+    def csv_record_to_objects(info):
+        yield PokemonTypePast(
+            pokemon_id=int(info[0]),
+            generation_id=int(info[1]),
+            type_id=int(info[2]),
+            slot=int(info[3]),
+        )
+
+    build_generic((PokemonTypePast,), "pokemon_types_past.csv", csv_record_to_objects)
+
 
 ###############
 #  ENCOUNTER  #

data/v2/csv/pokemon_types_past.csv

@@ -0,0 +1,37 @@
+pokemon_id,generation_id,type_id,slot
+35,5,1,1
+36,5,1,1
+39,5,1,1
+40,5,1,1
+81,1,13,1
+82,1,13,1
+122,5,14,1
+173,5,1,1
+174,5,1,1
+175,5,1,1
+176,5,1,1
+176,5,3,2
+183,5,11,1
+184,5,11,1
+209,5,1,1
+210,5,1,1
+280,5,14,1
+281,5,14,1
+282,5,14,1
+298,5,1,1
+303,5,9,1
+439,5,14,1
+468,5,1,1
+468,5,3,2
+546,5,12,1
+547,5,12,1
+10008,4,13,1
+10008,4,8,2
+10009,4,13,1
+10009,4,8,2
+10010,4,13,1
+10010,4,8,2
+10011,4,13,1
+10011,4,8,2
+10012,4,13,1
+10012,4,8,2

pokemon_v2/README.md

@@ -2266,106 +2266,96 @@ Pokémon are the creatures that inhabit the world of the pokemon games. They can
 
 ```json
 {
-	"id": 12,
-	"name": "butterfree",
-	"base_experience": 178,
-	"height": 11,
-	"is_default": true,
-	"order": 16,
-	"weight": 320,
-	"abilities": [{
+	"id": 35,
+    "name": "clefairy",
+    "base_experience": 113,
+    "height": 6,
+    "is_default": true,
+    "order": 56,
+    "weight": 75,
+    "abilities": [{
 		"is_hidden": true,
 		"slot": 3,
 		"ability": {
-			"name": "tinted-lens",
-			"url": "http://pokeapi.co/api/v2/ability/110/"
+			"name": "friend-guard",
+			"url": "https://pokeapi.co/api/v2/ability/132/"
 		}
 	}],
 	"forms": [{
-		"name": "butterfree",
-		"url": "http://pokeapi.co/api/v2/pokemon-form/12/"
+		"name": "clefairy",
+		"url": "https://pokeapi.co/api/v2/pokemon-form/35/"
 	}],
 	"game_indices": [{
-		"game_index": 12,
+		"game_index": 35,
 		"version": {
 			"name": "white-2",
-			"url": "http://pokeapi.co/api/v2/version/22/"
+			"url": "https://pokeapi.co/api/v2/version/22/"
 		}
 	}],
 	"held_items": [{
 		"item": {
-			"name": "silver-powder",
-			"url": "http://pokeapi.co/api/v2/item/199/"
+			"name": "moon-stone",
+			"url": "https://pokeapi.co/api/v2/item/81/"
 		},
 		"version_details": [{
 			"rarity": 5,
 			"version": {
-				"name": "y",
-				"url": "http://pokeapi.co/api/v2/version/24/"
-			}
-		}]
-	}],
-	"location_area_encounters": [{
-		"location_area": {
-			"name": "kanto-route-2-south-towards-viridian-city",
-			"url": "http://pokeapi.co/api/v2/location-area/296/"
-		},
-		"version_details": [{
-			"max_chance": 10,
-			"encounter_details": [{
-				"min_level": 7,
-				"max_level": 7,
-				"condition_values": [{
-					"name": "time-morning",
-					"url": "http://pokeapi.co/api/v2/encounter-condition-value/3/"
-				}],
-				"chance": 5,
-				"method": {
-					"name": "walk",
-					"url": "http://pokeapi.co/api/v2/encounter-method/1/"
-				}
-			}],
-			"version": {
-				"name": "heartgold",
-				"url": "http://pokeapi.co/api/v2/version/15/"
+				"name": "ruby",
+				"url": "https://pokeapi.co/api/v2/version/7/"
 			}
 		}]
 	}],
+	"location_area_encounters": "/api/v2/pokemon/35/encounters",
 	"moves": [{
 		"move": {
-			"name": "flash",
-			"url": "http://pokeapi.co/api/v2/move/148/"
+			"name": "pound",
+			"url": "https://pokeapi.co/api/v2/move/1/"
 		},
 		"version_group_details": [{
-			"level_learned_at": 0,
+			"level_learned_at": 1,
 			"version_group": {
-				"name": "x-y",
-				"url": "http://pokeapi.co/api/v2/version-group/15/"
+				"name": "red-blue",
+				"url": "https://pokeapi.co/api/v2/version-group/1/"
 			},
 			"move_learn_method": {
-				"name": "machine",
-				"url": "http://pokeapi.co/api/v2/move-learn-method/4/"
+				"name": "level-up",
+				"url": "https://pokeapi.co/api/v2/move-learn-method/1/"
 			}
 		}]
 	}],
 	"species": {
-		"name": "butterfree",
-		"url": "http://pokeapi.co/api/v2/pokemon-species/12/"
+		"name": "clefairy",
+        "url": "https://pokeapi.co/api/v2/pokemon-species/35/"
 	},
 	"stats": [{
-		"base_stat": 70,
+		"base_stat": 35,
 		"effort": 0,
 		"stat": {
 			"name": "speed",
-			"url": "http://pokeapi.co/api/v2/stat/6/"
+			"url": "https://pokeapi.co/api/v2/stat/6/"
 		}
 	}],
 	"types": [{
-		"slot": 2,
+		"slot": 1,
 		"type": {
-			"name": "flying",
-			"url": "http://pokeapi.co/api/v2/type/3/"
+			"name": "fairy",
+			"url": "https://pokeapi.co/api/v2/type/18/"
 		}
+	}],
+	"past_types": [{
+		"generation": {
+			"name": "generation-v",
+			"url": "https://pokeapi.co/api/v2/generation/5/"
+		},
+		"types": [
+			{
+				"slot": 1,
+				"type": {
+					"name": "normal",
+					"url": "https://pokeapi.co/api/v2/type/1/"
+				}
+			}
+		]
 	}]
 }
 ```
@@ -2392,6 +2382,7 @@ Pokémon are the creatures that inhabit the world of the pokemon games. They can
 | species                  | The species this pokémon belongs to                                                              | [NamedAPIResource](#namedapiresource) ([PokemonSpecies](#pokemon-species)) |
 | stats                    | A list of base stat values for this pokémon                                                      | list [NamedAPIResource](#namedapiresource) ([Stat](#stats)) | 
 | types                    | A list of details showing types this pokémon has                                                 | list [PokemonType](#pokemontype) |
+| past_types               | A list of details showing types this pokémon had in previous generations                         | list [PokemonTypePast](#pokemontypepast) |
 
 #### PokemonAbility
 
@@ -2408,6 +2399,13 @@ Pokémon are the creatures that inhabit the world of the pokemon games. They can
 | slot | The order the pokémon types are listed in | integer |
 | type | The type the referenced pokémon has       | string  |
 
+#### PokemonTypePast
+
+| Name | Description | Data Type |
+| ---- | ----------- | --------- |
+| generation | The last generation in which the referenced pokémon had the listed types       | [NamedAPIResource](#namedapiresource) ([Generation](#generations)) |
+| types      | The types the referenced pokémon had up to and including the listed generation | list [PokemonType](#pokemontype) |
+
 #### LocationAreaEncounter
 
 | Name | Description | Data Type |

pokemon_v2/migrations/0009_pokemontypepast.py

@@ -0,0 +1,62 @@
+# Generated by Django 2.1.11 on 2021-02-06 22:03
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pokemon_v2", "0008_auto_20201123_2045"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="PokemonTypePast",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("slot", models.IntegerField()),
+                (
+                    "generation",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="pokemontypepast",
+                        to="pokemon_v2.Generation",
+                    ),
+                ),
+                (
+                    "pokemon",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="pokemontypepast",
+                        to="pokemon_v2.Pokemon",
+                    ),
+                ),
+                (
+                    "type",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="pokemontypepast",
+                        to="pokemon_v2.Type",
+                    ),
+                ),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+    ]

pokemon_v2/models.py

@@ -1872,6 +1872,12 @@ class PokemonType(HasPokemon, HasType):
     slot = models.IntegerField()
 
 
+# model for a Pokemon's types that were used until a given generation
+class PokemonTypePast(HasPokemon, HasType, HasGeneration):
+
+    slot = models.IntegerField()
+
+
 class PokemonSprites(HasPokemon):
 
     sprites = models.CharField(max_length=20000)

pokemon_v2/serializers.py

@@ -386,6 +386,16 @@ class Meta:
         fields = ("slot", "pokemon", "type")
 
 
+class PokemonTypePastSerializer(serializers.ModelSerializer):
+
+    generation = GenerationSummarySerializer()
+    type = TypeSummarySerializer()
+
+    class Meta:
+        model = PokemonTypePast
+        fields = ("pokemon", "generation", "slot", "type")
+
+
 class PokedexVersionGroupSerializer(serializers.ModelSerializer):
 
     pokedex = PokedexSummarySerializer()
@@ -2721,6 +2731,7 @@ class PokemonDetailSerializer(serializers.ModelSerializer):
     species = PokemonSpeciesSummarySerializer(source="pokemon_species")
     stats = PokemonStatSerializer(many=True, read_only=True, source="pokemonstat")
     types = serializers.SerializerMethodField("get_pokemon_types")
+    past_types = serializers.SerializerMethodField("get_past_pokemon_types")
     forms = PokemonFormSummarySerializer(
         many=True, read_only=True, source="pokemonform"
     )
@@ -2748,6 +2759,7 @@ class Meta:
             "sprites",
             "stats",
             "types",
+            "past_types",
         )
 
     def get_pokemon_sprites(self, obj):
@@ -2887,6 +2899,42 @@ def get_pokemon_types(self, obj):
 
         return poke_types
 
+    def get_past_pokemon_types(self, obj):
+
+        poke_past_type_objects = PokemonTypePast.objects.filter(pokemon=obj)
+        poke_past_types = PokemonTypePastSerializer(
+            poke_past_type_objects, many=True, context=self.context
+        ).data
+
+        # post-process to the form we want
+        current_generation = ""
+        past_obj = {}
+        final_data = []
+        for poke_past_type in poke_past_types:
+            del poke_past_type["pokemon"]
+
+            generation = poke_past_type["generation"]["name"]
+            if generation != current_generation:
+                current_generation = generation
+                past_obj = {}
+
+                # create past types object for this generation
+                past_obj["generation"] = poke_past_type["generation"]
+                del poke_past_type["generation"]
+
+                # create types array
+                past_obj["types"] = [poke_past_type]
+
+                # add to past types array
+                final_data.append(past_obj)
+
+            else:
+                # add to existing array for this generation
+                del poke_past_type["generation"]
+                past_obj["types"].append(poke_past_type)
+
+        return final_data
+
     def get_encounters(self, obj):
 
         return reverse("pokemon_encounters", kwargs={"pokemon_id": obj.pk})