add ContributionLink graphQL model

backend/src/graphql/model/ContributionLink.ts

@@ -0,0 +1,56 @@
+import { ObjectType, Field, Int } from 'type-graphql'
+import Decimal from 'decimal.js-light'
+import { ContributionLink as dbContributionLink } from '@entity/ContributionLink'
+
+@ObjectType()
+export class ContributionLink {
+  constructor(contributionLink: dbContributionLink) {
+    this.id = contributionLink.id
+    this.amount = contributionLink.amount
+    this.name = contributionLink.name
+    this.memo = contributionLink.memo
+    this.createdAt = contributionLink.createdAt
+    this.deletedAt = contributionLink.deletedAt
+    this.validFrom = contributionLink.validFrom
+    this.validTo = contributionLink.validTo
+    this.maxAmountPerMonth = contributionLink.maxAmountPerMonth
+    this.cycle = contributionLink.cycle
+    this.maxPerCycle = contributionLink.maxPerCycle
+  }
+
+  @Field(() => Number)
+  id: number
+
+  @Field(() => Decimal)
+  amount: Decimal
+
+  @Field(() => String)
+  name: string
+
+  @Field(() => String)
+  memo: string
+
+  @Field(() => String)
+  code: string
+
+  @Field(() => Date)
+  createdAt: Date
+
+  @Field(() => Date, { nullable: true })
+  deletedAt: Date | null
+
+  @Field(() => Date, { nullable: true })
+  validFrom: Date | null
+
+  @Field(() => Date, { nullable: true })
+  validTo: Date | null
+
+  @Field(() => Decimal)
+  maxAmountPerMonth: Decimal | null
+
+  @Field(() => string)
+  cycle: string
+
+  @Field(() => Int)
+  maxPerCycle: number
+}