Jsonを使用してネストされた出力を生成しようとしていdjango-rest-frameworkます。でも正しい道が見つからない…
誰かが私を正しい方向に連れて行ってくれませんか? どうもありがとう！
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ここに私のモデルがあります：
class Pacmr(models.Model):
package = models.ForeignKey(Package)
architecture = models.ForeignKey(Architecture)
component = models.ForeignKey(Component)
mirror = models.ForeignKey(Mirror)
release = models.ForeignKey(Release)
version = DebVersionField()
Package、Architecture、Component、MirrorはReleaseすべて次と同等です。
class Package(models.Model):
name = models.CharField(max_length=50)
comment = models.CharField(max_length=200)
Pacmrテーブル コンテンツの例:
SELECT id, package_id, architecture_id, component_id, mirror_id, release_id, version from pacmr_pacmr where package_id = 20671;
id | package_id | architecture_id | component_id | mirror_id | release_id | version
--------+------------+-----------------+--------------+-----------+------------+--------------
965201 | 20671 | 236 | 146 | 73 | 111 | 3.0-2.1b-1
965200 | 20671 | 236 | 146 | 73 | 109 | 3.0-2.1b-2.1
965199 | 20671 | 236 | 146 | 73 | 113 | 3.0-2.1a-5
691277 | 20671 | 236 | 146 | 73 | 105 | 3.0-2.1b-3
691276 | 20671 | 236 | 146 | 73 | 107 | 3.0-2.1b-3
691275 | 20671 | 236 | 146 | 73 | 104 | 3.0-2.1b-3
691274 | 20671 | 236 | 146 | 75 | 113 | 3.0-2.1a-5
691273 | 20671 | 236 | 146 | 72 | 111 | 3.0-2.1b-1
691272 | 20671 | 236 | 146 | 72 | 110 | 3.0-2.1b-1
691271 | 20671 | 236 | 146 | 72 | 109 | 3.0-2.1b-2.1
691270 | 20671 | 236 | 146 | 72 | 108 | 3.0-2.1b-2.1
691269 | 20671 | 236 | 146 | 72 | 113 | 3.0-2.1a-5
691268 | 20671 | 236 | 146 | 72 | 115 | 3.0-2.1a-5
691267 | 20671 | 236 | 146 | 72 | 107 | 3.0-2.1b-3
691266 | 20671 | 236 | 146 | 72 | 106 | 3.0-2.1b-3
691265 | 20671 | 236 | 146 | 72 | 104 | 3.0-2.1b-3
691264 | 20671 | 236 | 146 | 72 | 103 | 3.0-2.1b-3
691263 | 20671 | 236 | 144 | 71 | 97 | 3.0-2.1b-2.1
691262 | 20671 | 236 | 144 | 71 | 67 | 3.0-2.1b-3
691261 | 20671 | 236 | 144 | 71 | 114 | 3.0-2.1b-3
691260 | 20671 | 236 | 144 | 71 | 68 | 3.0-2.1b-3
691259 | 20671 | 236 | 144 | 71 | 101 | 3.0-2.1b-3
691258 | 20671 | 236 | 144 | 71 | 100 | 3.0-2.1b-3
691257 | 20671 | 236 | 144 | 70 | 97 | 3.0-2.1b-2.1
691256 | 20671 | 236 | 144 | 70 | 98 | 3.0-2.1b-2.1
691255 | 20671 | 236 | 144 | 70 | 67 | 3.0-2.1b-3
691254 | 20671 | 236 | 144 | 70 | 99 | 3.0-2.1b-3
691253 | 20671 | 236 | 144 | 70 | 68 | 3.0-2.1b-3
691252 | 20671 | 236 | 144 | 70 | 96 | 3.0-2.1b-3
結合すると、次のようになります。
SELECT pacmr_pacmr.id as id, pacmr_package.name as package, pacmr_architecture.name as architecture, pacmr_component.name as component, pacmr_mirror.name as mirror, pacmr_release.name as release, version from pacmr_pacmr, pacmr_package, pacmr_architecture, pacmr_component, pacmr_mirror, pacmr_release where package_id=pacmr_package.id and architecture_id=pacmr_architecture.id and component_id=pacmr_component.id and mirror_id=pacmr_mirror.id and release_id=pacmr_release.id and package_id = 20671;
id | package | architecture | component | mirror | release | version
--------+---------+--------------+-----------+-------------------+-----------------+--------------
965201 | jvim | source | main | debian | etch | 3.0-2.1b-1
965200 | jvim | source | main | debian | lenny | 3.0-2.1b-2.1
965199 | jvim | source | main | debian | sarge | 3.0-2.1a-5
691277 | jvim | source | main | debian | sid | 3.0-2.1b-3
691276 | jvim | source | main | debian | squeeze | 3.0-2.1b-3
691275 | jvim | source | main | debian | wheezy | 3.0-2.1b-3
691274 | jvim | source | main | debian-amd64 | sarge | 3.0-2.1a-5
691273 | jvim | source | main | debian-production | etch | 3.0-2.1b-1
691272 | jvim | source | main | debian-production | etch-testing | 3.0-2.1b-1
691271 | jvim | source | main | debian-production | lenny | 3.0-2.1b-2.1
691270 | jvim | source | main | debian-production | lenny-testing | 3.0-2.1b-2.1
691269 | jvim | source | main | debian-production | sarge | 3.0-2.1a-5
691268 | jvim | source | main | debian-production | sarge-testing | 3.0-2.1a-5
691267 | jvim | source | main | debian-production | squeeze | 3.0-2.1b-3
691266 | jvim | source | main | debian-production | squeeze-testing | 3.0-2.1b-3
691265 | jvim | source | main | debian-production | wheezy | 3.0-2.1b-3
691264 | jvim | source | main | debian-production | wheezy-testing | 3.0-2.1b-3
691263 | jvim | source | universe | ubuntu | hardy | 3.0-2.1b-2.1
691262 | jvim | source | universe | ubuntu | lucid | 3.0-2.1b-3
691261 | jvim | source | universe | ubuntu | oneiric | 3.0-2.1b-3
691260 | jvim | source | universe | ubuntu | precise | 3.0-2.1b-3
691259 | jvim | source | universe | ubuntu | quantal | 3.0-2.1b-3
691258 | jvim | source | universe | ubuntu | raring | 3.0-2.1b-3
691257 | jvim | source | universe | ubuntu-production | hardy | 3.0-2.1b-2.1
691256 | jvim | source | universe | ubuntu-production | hardy-testing | 3.0-2.1b-2.1
691255 | jvim | source | universe | ubuntu-production | lucid | 3.0-2.1b-3
691254 | jvim | source | universe | ubuntu-production | lucid-testing | 3.0-2.1b-3
691253 | jvim | source | universe | ubuntu-production | precise | 3.0-2.1b-3
691252 | jvim | source | universe | ubuntu-production | precise-testing | 3.0-2.1b-3
(29 rows)
ここに私が持ちたいものの例django-rest-framework（手書き）：
{
"package_id": 20671,
"package": "jvim",
"mirrors": [
{
"name": "debian",
"components": [
{
"name": "main",
"releases": [
{
"name": "etch",
"version": "3.0-2.1b-1"
},
{
"name": "lenny",
"version": "3.0-2.1b-2.1"
},
{
"name": "sarge",
"version": "3.0-2.1a-5"
},
{
"name": "sid",
"version": "3.0-2.1b-3"
},
{
"name": "squeeze",
"version": "3.0-2.1b-3"
},
{
"name": "wheezy",
"version": "3.0-2.1b-3"
}
]
}
]
},
{
"name": "debian-amd64",
"components": [
{
"name": "main",
"releases": [
{
"name": "sarge",
"version": "3.0-2.1a-5"
}
]
}
]
},
{
"name": "debian-production",
"components": [
{
"name": "main",
"releases": [
{
"name": "etch",
"version": "3.0-2.1a-5"
},
{
"name": "etch-testing",
"version": "3.0-2.1a-5"
},
{
"name": "lenny",
"version": "3.0-2.1a-5"
},
{
"name": "lenny-testing",
"version": "3.0-2.1a-5"
},
{
"name": "sarge",
"version": "3.0-2.1a-5"
},
{
"name": "sarge-testing",
"version": "3.0-2.1a-5"
},
{
"name": "squeeze",
"version": "3.0-2.1a-5"
},
{
"name": "squeeze-testing",
"version": "3.0-2.1a-5"
},
{
"name": "wheezy",
"version": "3.0-2.1a-5"
},
{
"name": "wheezy-testing",
"version": "3.0-2.1a-5"
}
]
}
]
},
{
"name": "ubuntu",
"components": [
{
"name": "universe",
"releases": [
{
"name": "hardy",
"version": "3.0-2.1b-2.1"
},
{
"name": "lucid",
"version": "3.0-2.1b-3"
},
{
"name": "oneiric",
"version": "3.0-2.1b-3"
},
{
"name": "precise",
"version": "3.0-2.1b-3"
},
{
"name": "quantal",
"version": "3.0-2.1b-3"
},
{
"name": "raring",
"version": "3.0-2.1b-3"
}
]
}
]
},
{
"name": "ubuntu-production",
"components": [
{
"name": "universe",
"releases": [
{
"name": "hardy",
"version": "3.0-2.1b-2.1"
},
{
"name": "hardy-testing",
"version": "3.0-2.1b-2.1"
},
{
"name": "lucid",
"version": "3.0-2.1b-3"
},
{
"name": "lucid-testing",
"version": "3.0-2.1b-3"
},
{
"name": "precise",
"version": "3.0-2.1b-3"
},
{
"name": "precise-testing",
"version": "3.0-2.1b-3"
}
]
}
]
}
]
}