{"record":{"id":"60848a79bd425f91","repo":"flipped-aurora/gin-vue-admin","slug":"d-fields","errorCode":null,"errorMessage":"模块 %d 的 fields 不能为空，至少需要一个字段","messagePattern":"模块 (.+?) 的 fields 不能为空，至少需要一个字段","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_execute.go","lineNumber":347,"sourceCode":"\t\t\t\treturn fmt.Errorf(\"模块 %d 的 structName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.TableName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 tableName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.Description == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 description 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.Abbreviation == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 abbreviation 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.PackageName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 packageName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.HumpPackageName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 humpPackageName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif len(moduleInfo.Fields) == 0 {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 fields 不能为空，至少需要一个字段\", moduleIndex+1)\n\t\t\t}\n\n\t\t\tfor i, field := range moduleInfo.Fields {\n\t\t\t\tif field.FieldName == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 fieldName 不能为空\", moduleIndex+1, i+1)\n\t\t\t\t}\n\t\t\t\tif len(field.FieldName) > 0 {\n\t\t\t\t\tfirstChar := string(field.FieldName[0])\n\t\t\t\t\tif firstChar >= \"a\" && firstChar <= \"z\" {\n\t\t\t\t\t\tmoduleInfo.Fields[i].FieldName = strings.ToUpper(firstChar) + field.FieldName[1:]\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif field.FieldDesc == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 fieldDesc 不能为空\", moduleIndex+1, i+1)\n\t\t\t\t}\n\t\t\t\tif field.FieldType == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 fieldType 不能为空\", moduleIndex+1, i+1)\n\t\t\t\t}","sourceCodeStart":329,"sourceCodeEnd":365,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_execute.go#L329-L365","documentation":"A module with no field definitions cannot produce a model, so validateExecutionPlan rejects plans where modules[i].fields is an empty array or missing. At least one field entry is required. This check runs in Handle after the module-level string fields pass.","triggerScenarios":"Submitting an execution plan to gva_execute with modules[i].fields omitted, [], or null.","commonSituations":"LLM plans that stopped generating mid-module; users scaffolding a stub module intending to add fields later; JSON serialization dropping an empty fields array.","solutions":["Add at least one field object to modules[i].fields","Start with an ID or primary business field; each field needs fieldName, fieldDesc, fieldType, fieldJson, columnName","Re-run the tool once every module has fields"],"exampleFix":"// before\n{\"packageName\":\"article\",\"fields\":[]}\n// after\n{\"packageName\":\"article\",\"fields\":[{\"fieldName\":\"Name\",\"fieldDesc\":\"name\",\"fieldType\":\"string\",\"fieldJson\":\"name\",\"columnName\":\"name\"}]}","handlingStrategy":"validation","validationCode":"for i, m := range plan.Modules {\n  if len(m.Fields) == 0 {\n    return fmt.Errorf(\"modules[%d].fields must contain at least one field\", i)\n  }\n}","typeGuard":"func hasFields(m Module) bool { return len(m.Fields) > 0 }","tryCatchPattern":null,"preventionTips":["Do not submit stub modules without field definitions","Ensure your plan-generating prompt/script always emits a fields array with entries","Review generated plan JSON before execution to catch truncated modules"],"tags":["mcp","code-generation","validation","schema"],"backgroundTag":"empty-collection-validation","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}