{"record":{"id":"5f41ccc5732dffa2","repo":"flipped-aurora/gin-vue-admin","slug":"d-d-fieldname","errorCode":null,"errorMessage":"模块 %d 字段 %d 的 fieldName 不能为空","messagePattern":"模块 (.+?) 字段 (.+?) 的 fieldName 不能为空","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_execute.go","lineNumber":352,"sourceCode":"\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}\n\t\t\t\tif field.FieldJson == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 fieldJson 不能为空\", moduleIndex+1, i+1)\n\t\t\t\t}\n\t\t\t\tif field.ColumnName == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 columnName 不能为空\", moduleIndex+1, i+1)","sourceCodeStart":334,"sourceCodeEnd":370,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_execute.go#L334-L370","documentation":"Every field inside modules[i].fields must have a non-empty FieldName, the Go struct field name. validateExecutionPlan throws this error for fields[i].fieldName being \"\". Immediately after this check the validator auto-capitalizes a lowercase first character, so passing a lowercase name is tolerated.","triggerScenarios":"A plan field entry lacking fieldName, or setting it to \"\"/null, e.g. when a model hallucinated a field object with only fieldJson or fieldType.","commonSituations":"Partial field objects from truncated LLM output; users writing json tag-style lowercase names and leaving fieldName blank by mistake; copy-paste errors when editing plan JSON.","solutions":["Set fieldName to a non-empty exported Go identifier (e.g. \"Name\"); a lowercase first letter is auto-uppercased","Check every field object in the module, not just the first failing one (validation stops at the first error)","Re-run gva_execute after fixing"],"exampleFix":"// before\n{\"fieldName\":\"\",\"fieldJson\":\"name\"}\n// after\n{\"fieldName\":\"Name\",\"fieldJson\":\"name\"}","handlingStrategy":"validation","validationCode":"for i, m := range plan.Modules {\n  for j, f := range m.Fields {\n    if f.FieldName == \"\" {\n      return fmt.Errorf(\"modules[%d].fields[%d].fieldName is required\", i, j)\n    }\n  }\n}","typeGuard":"func hasFieldName(f Field) bool { return f.FieldName != \"\" }","tryCatchPattern":null,"preventionTips":["Emit fieldName first when authoring field objects","Remember lowercase first letters are auto-uppercased, but the name itself must exist","Validate each field object against the required-keys list before submission"],"tags":["mcp","code-generation","validation","fields"],"backgroundTag":"missing-required-field","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}