質問編集履歴
4
エラーの部分の修正
test
CHANGED
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File without changes
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test
CHANGED
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@@ -24,7 +24,9 @@
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24
24
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どのあたりに問題があるかご教授いただきたいです。
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25
25
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26
26
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### エラー
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27
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+
赤波線で`Cannot query field "createLikeFrom" on type "Mutation".`と出力される
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27
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-
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29
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+
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28
30
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29
31
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### 該当のソースコード
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30
32
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3
mutation_type.rbを一部修正
test
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File without changes
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test
CHANGED
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@@ -100,8 +100,7 @@
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100
100
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```ruby
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101
101
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module Types
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102
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class MutationType < Types::BaseObject
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103
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-
field :create_like_to, mutation: Mutations::CreateLikeTo
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104
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-
field :create
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103
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+
field :createLikeFrom, mutation: Mutations::CreateLikeFrom
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105
104
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end
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106
105
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end
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107
106
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```
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2
クエリの内容を変更
test
CHANGED
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File without changes
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test
CHANGED
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@@ -7,10 +7,7 @@
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7
7
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```
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8
8
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mutation {
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9
9
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createLikeFrom(
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10
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-
input:{
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11
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-
user_id: 1
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12
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-
to
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10
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+
input:{userId: 1, toUserId: 3}
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13
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-
}
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14
11
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){
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15
12
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likes {
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16
13
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id
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1
質問内容を一部修正
test
CHANGED
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File without changes
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test
CHANGED
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@@ -1,14 +1,37 @@
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1
1
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### 実現したいこと
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2
2
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3
3
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あるユーザーがどのユーザーに対してLikeをしたのか、その情報を保持させるLikeモデルをGraphQLで実装しています。
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4
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+
mutationでCreateLikeFromというメソッドをつくり、`user_id: 1`が`user_id: 3`をLikeする実装をしたいです。
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4
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-
現在の下記のコードでは、クエリを投げても
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5
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+
現在の下記のコードでは、クエリを投げてもエラーが出力されてしまいます。
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6
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+
- クエリ
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7
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+
```
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8
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+
mutation {
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9
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+
createLikeFrom(
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10
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+
input:{
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11
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+
user_id: 1
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12
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+
to_user_id: 3
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13
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+
}
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14
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+
){
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15
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+
likes {
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16
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+
id
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17
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+
fromUser {
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18
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+
id
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+
}
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20
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+
toUser {
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21
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+
id
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22
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+
}
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23
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+
}
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24
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+
}
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25
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+
}
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26
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+
```
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5
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-
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27
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+
どのあたりに問題があるかご教授いただきたいです。
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6
28
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29
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+
### エラー
|
|
7
|
-
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|
8
31
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|
|
9
32
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### 該当のソースコード
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|
10
33
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11
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-
user.rb
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34
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+
models/user.rb
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12
35
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```ruby
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13
36
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class User < ApplicationRecord
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14
37
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has_many :likes_from, class_name: "Like", foreign_key: :from_user_id, dependent: :destroy
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@@ -17,14 +40,14 @@
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17
40
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has_many :passive_likes, through: :likes_to, source: :from_user
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18
41
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end
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19
42
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```
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20
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-
like.rb
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|
43
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+
models/like.rb
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|
21
44
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```ruby
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22
45
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class Like < ApplicationRecord
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23
46
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belongs_to :to_user, class_name: "User", foreign_key: :to_user_id
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24
47
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belongs_to :from_user, class_name: "User", foreign_key: :from_user_id
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25
48
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end
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26
49
|
```
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27
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-
user_type.rb
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|
50
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+
graphql/types/user_type.rb
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|
28
51
|
```ruby
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|
29
52
|
module Types
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|
30
53
|
class UserType < Types::BaseObject
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|
@@ -32,10 +55,12 @@
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|
32
55
|
field :created_at, GraphQL::Types::ISO8601DateTime, null: false
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|
33
56
|
field :updated_at, GraphQL::Types::ISO8601DateTime, null: false
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|
34
57
|
field :like, [Types::LikeType], null: false
|
|
58
|
+
def like_from; object.likes_from; end
|
|
59
|
+
def like_to; object.likes_to; end
|
|
35
60
|
end
|
|
36
61
|
end
|
|
37
62
|
```
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|
38
|
-
like_type.rb
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|
63
|
+
graphql/types/like_type.rb
|
|
39
64
|
```ruby
|
|
40
65
|
module Types
|
|
41
66
|
class LikeType < Types::BaseObject
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|
@@ -45,10 +70,12 @@
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|
|
45
70
|
field :created_at, GraphQL::Types::ISO8601DateTime, null: false
|
|
46
71
|
field :updated_at, GraphQL::Types::ISO8601DateTime, null: false
|
|
47
72
|
field :user, Types::UserType, null: false
|
|
73
|
+
field :from_user, Types::UserType, null: false
|
|
74
|
+
field :to_user, Types::UserType, null: false
|
|
48
75
|
end
|
|
49
76
|
end
|
|
50
77
|
```
|
|
51
|
-
query_type.rb
|
|
78
|
+
graphql/types/query_type.rb
|
|
52
79
|
```ruby
|
|
53
80
|
module Types
|
|
54
81
|
class QueryType < Types::BaseObject
|
|
@@ -72,3 +99,40 @@
|
|
|
72
99
|
end
|
|
73
100
|
end
|
|
74
101
|
```
|
|
102
|
+
graphql/types/mutation_type.rb
|
|
103
|
+
```ruby
|
|
104
|
+
module Types
|
|
105
|
+
class MutationType < Types::BaseObject
|
|
106
|
+
field :create_like_to, mutation: Mutations::CreateLikeTo
|
|
107
|
+
field :create_like_from, mutation: Mutations::CreateLikeFrom
|
|
108
|
+
end
|
|
109
|
+
end
|
|
110
|
+
```
|
|
111
|
+
graphql/mutations/create_like_from.rb
|
|
112
|
+
```ruby
|
|
113
|
+
module Mutations
|
|
114
|
+
class CreateLikeFrom < BaseMutation
|
|
115
|
+
graphql_name 'CreateLikeFrom'
|
|
116
|
+
|
|
117
|
+
field :user, Types::UserType, null: false
|
|
118
|
+
field :like, Types::LikeType, null: false
|
|
119
|
+
|
|
120
|
+
argument :id, ID, required: true
|
|
121
|
+
argument :user_id, ID, required: true
|
|
122
|
+
argument :from_user_id, ID, required: true
|
|
123
|
+
argument :to_user_id, ID, required: true
|
|
124
|
+
argument :from_user, Integer, required: true
|
|
125
|
+
argument :to_user, Integer, required: true
|
|
126
|
+
|
|
127
|
+
def resolve(**args)
|
|
128
|
+
user = User.find(args[:user_id])
|
|
129
|
+
user.likes_from.create!(to_user_id: to_user_id)
|
|
130
|
+
{
|
|
131
|
+
like: like,
|
|
132
|
+
}
|
|
133
|
+
rescue => e
|
|
134
|
+
GraphQL::ExecutionError.new(e.message)
|
|
135
|
+
end
|
|
136
|
+
end
|
|
137
|
+
end
|
|
138
|
+
```
|