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Merge pull request #5908 from mjfwebb/7x-revert-create-always-on-connect
Revert "Merge pull request #5892 from mjfwebb/7x-connect-always-creat…
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93
packages/graphql/src/translate/create-relationship-validation-string.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| /* | ||
| * Copyright (c) "Neo4j" | ||
| * Neo4j Sweden AB [http://neo4j.com] | ||
| * | ||
| * This file is part of Neo4j. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import type { Node } from "../classes"; | ||
| import { RELATIONSHIP_REQUIREMENT_PREFIX } from "../constants"; | ||
| import type { Neo4jGraphQLTranslationContext } from "../types/neo4j-graphql-translation-context"; | ||
|
|
||
| export function createRelationshipValidationString({ | ||
| node, | ||
| context, | ||
| varName, | ||
| relationshipFieldNotOverwritable, | ||
| }: { | ||
| node: Node; | ||
| context: Neo4jGraphQLTranslationContext; | ||
| varName: string; | ||
| relationshipFieldNotOverwritable?: string; | ||
| }): string { | ||
| const strs: string[] = []; | ||
|
|
||
| node.relationFields.forEach((field) => { | ||
| const isArray = field.typeMeta.array; | ||
| const isUnionOrInterface = Boolean(field.union) || Boolean(field.interface); | ||
| if (isUnionOrInterface) { | ||
| return; | ||
| } | ||
|
|
||
| const toNode = context.nodes.find((n) => n.name === field.typeMeta.name) as Node; | ||
| const inStr = field.direction === "IN" ? "<-" : "-"; | ||
| const outStr = field.direction === "OUT" ? "->" : "-"; | ||
| const relVarname = `${varName}_${field.fieldName}_${toNode.name}_unique`; | ||
|
|
||
| let predicate: string; | ||
| let errorMsg: string; | ||
| let subQuery: string | undefined; | ||
| if (isArray) { | ||
| if (relationshipFieldNotOverwritable === field.fieldName) { | ||
| predicate = `c = 1`; | ||
| errorMsg = `${RELATIONSHIP_REQUIREMENT_PREFIX}${node.name}.${field.fieldName} required exactly once for a specific ${toNode.name}`; | ||
| subQuery = [ | ||
| `CALL {`, | ||
| `\tWITH ${varName}`, | ||
| `\tMATCH (${varName})${inStr}[${relVarname}:${field.type}]${outStr}(other${toNode.getLabelString( | ||
| context | ||
| )})`, | ||
| `\tWITH count(${relVarname}) as c, other`, | ||
| `\tWHERE apoc.util.validatePredicate(NOT (${predicate}), '${errorMsg}', [0])`, | ||
| `\tRETURN collect(c) AS ${relVarname}_ignored`, | ||
| `}`, | ||
| ].join("\n"); | ||
| } | ||
| } else { | ||
| predicate = `c = 1`; | ||
| errorMsg = `${RELATIONSHIP_REQUIREMENT_PREFIX}${node.name}.${field.fieldName} required exactly once`; | ||
| if (!field.typeMeta.required) { | ||
| predicate = `c <= 1`; | ||
| errorMsg = `${RELATIONSHIP_REQUIREMENT_PREFIX}${node.name}.${field.fieldName} must be less than or equal to one`; | ||
| } | ||
|
|
||
| subQuery = [ | ||
| `CALL {`, | ||
| `\tWITH ${varName}`, | ||
| `\tMATCH (${varName})${inStr}[${relVarname}:${field.type}]${outStr}(${toNode.getLabelString(context)})`, | ||
| `\tWITH count(${relVarname}) as c`, | ||
| `\tWHERE apoc.util.validatePredicate(NOT (${predicate}), '${errorMsg}', [0])`, | ||
| `\tRETURN c AS ${relVarname}_ignored`, | ||
| `}`, | ||
| ].join("\n"); | ||
| } | ||
|
|
||
| if (subQuery) { | ||
| strs.push(subQuery); | ||
| } | ||
| }); | ||
|
|
||
| return strs.join("\n"); | ||
| } |
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