Cercare file con un'etichetta o un valore di campo specifici
Mantieni tutto organizzato con le raccolte
Salva e classifica i contenuti in base alle tue preferenze.
Questa pagina descrive come cercare file a cui è stata applicata un'etichetta o un valore di campo specifico.
Tipi di campi etichetta
I campi delle etichette di Google Drive sono fortemente tipizzati e ogni tipo supporta
semantiche di indicizzazione e ricerca diverse. La tabella seguente mostra i tipi di dati disponibili.
Tipo
Opzioni per il tipo di etichetta
Operatori di ricerca supportati
Testo
TextOptions
is null, is not null, =, contains, starts with
Testo lungo
LongTextOptions
is null, is not null, contains
Numero intero
IntegerOptions
is null, is not null, =, !=, <, >, <=, >=
Data
DateOptions
is null, is not null, =, !=, <, >, <=, >=
Selezione
SelectionOptions
is null, is not null, =, !=
Utente
UserOptions
is null, is not null, =, !=
Elenco selezioni
SelectionOptions (con max_entries > 1)
is null, is not null, in, not in
Elenco utenti
UserOptions (con max_entries > 1)
is null, is not null, in, not in
Esempi di ricerche:
1. Ricerca in base alla presenza di un'etichetta o di un campo
Puoi cercare gli elementi a cui è stata (o non è stata) applicata un'etichetta specifica:
'labels/contract' in labels
not 'labels/contract' in labels
Puoi anche cercare elementi in cui un campo specifico è stato (o non è stato) impostato:
labels/contract.comment IS NOT NULL
labels/contract.comment IS NULL
2. Eseguire ricerche in base a campi con un solo valore
Puoi scrivere query di ricerca in modo che corrispondano ai valori di campo previsti. La tabella seguente
mostra le query sui campi valide:
Cosa vuoi interrogare
Stringa di query
Elementi in cui il commento è impostato su "hello"
labels/contract.comment = 'hello'
File in cui il commento inizia con "hello"
labels/contract.comment STARTS WITH 'hello'
File in cui lo stato è eseguito
labels/contract.status = 'executed'
File con stato diverso da Eseguito
labels/contract.status != 'executed'
File in cui execution_date è precedente a una data specifica
labels/contract.execution_date < '2020-06-22'
File in cui value_usd (numero intero) è inferiore a un valore specifico
labels/contract.value_usd < 2000
File in cui client_contact è impostato su un indirizzo email specifico
3. Cerca in base ai campi con campi multivalore (ad esempio
ListOptions.max_entries > 1)
I campi che supportano più valori possono essere interrogati solo utilizzando l'operatore IN:
'EMAIL_ADDRESS' IN labels/project.project_leads
NOT 'EMAIL_ADDRESS' IN labels/project.project_leads
Esempio
Il seguente esempio di codice mostra come utilizzare uno o più labelId per elencare tutti i file con un'etichetta o un valore di campo specifico da una risorsa file di Drive. Utilizza anche il
metodo files.list. Il corpo della richiesta deve
essere vuoto.
Se vuoi includere labelInfo nella risposta, devi anche specificare:
includeLabels
come elenco di ID separati da virgole.
labelInfo nel parametro fields per indicare che vuoi che labelInfo venga restituito entro includeLabels.
List<File>fileList=driveService.files().list().setIncludeLabels("LABEL_1_ID,LABEL_2_ID").setFields("items(labelInfo, id)").setQ("'labels/LABEL_1_ID' in labels and 'labels/LABEL_2_ID' in labels").execute().getItems();
Python
file_list=drive_service.files().list(includeLabels="LABEL_1_ID,LABEL_2_ID",q="'labels/LABEL_1_ID' in labels and 'labels/LABEL_2_ID' in labels",fields="items(labelInfo, id)").execute();
Node.js
/*** Search for Drive files with specific labels* @return{obj} file list with labelInfo**/asyncfunctionsearchForFileWithLabels(){// Get credentials and build service// TODO (developer) - Use appropriate auth mechanism for your appconst{GoogleAuth}=require('google-auth-library');const{google}=require('googleapis');constauth=newGoogleAuth({scopes:'https://www.googleapis.com/auth/drive'});constservice=google.drive({version:'v3',auth});try{constfileList=awaitservice.files.list({includeLabels:'LABEL_1_ID,LABEL_2_ID',q:'\'labels/LABEL_1_ID\' in labels and \'labels/LABEL_2_ID\' in labels',fields:'files(labelInfo, id)',});returnfile;}catch(err){// TODO (developer) - Handle errorthrowerr;}
Sostituisci quanto segue:
LABEL_1_ID: Il primo labelId di un'etichetta da restituire.
LABEL_2_ID: La seconda labelId di un'etichetta da restituire.
[null,null,["Ultimo aggiornamento 2025-08-29 UTC."],[],[],null,["# Search for files with a specific label or field value\n\nThis page describes how to search for files with a specific label or field value\napplied.\n\nLabel field types\n-----------------\n\nGoogle Drive label fields are strongly typed with each type supporting\ndifferent indexing and search semantics. The following table shows the available\ndata types.\n\n| Type | Label type options | Supported search operators |\n|----------------|------------------------------------------|--------------------------------------------------|\n| Text | TextOptions | `is null, is not null, =, contains, starts with` |\n| Long Text | LongTextOptions | `is null, is not null, contains` |\n| Integer | IntegerOptions | `is null, is not null, =, !=, \u003c, \u003e, \u003c=, \u003e=` |\n| Date | DateOptions | `is null, is not null, =, !=, \u003c, \u003e, \u003c=, \u003e=` |\n| Selection | SelectionOptions | `is null, is not null, =, !=` |\n| User | UserOptions | `is null, is not null, =, !=` |\n| Selection List | SelectionOptions (with max_entries \\\u003e 1) | `is null, is not null, in, not in` |\n| User List | UserOptions (with max_entries \\\u003e 1) | `is null, is not null, in, not in` |\n\n### Search examples\n\n| **Note:** In the examples below, readable strings are used for clarity. Actual resource names and field IDs must be used instead. For example, `labels/contract.execution_date` might look something like this: `labels/837d7f5de85137b86e52.491d`.\n\n**1. Search based on the presence of a label or field**\n\nYou can search for items where a specific label has (or has not) been applied:\n\n- `'labels/contract' in labels`\n- `not 'labels/contract' in labels`\n\nYou can also search for items where a specific field has (or has not) been set:\n\n- `labels/contract.comment IS NOT NULL`\n- `labels/contract.comment IS NULL`\n\n| **Note:** Searching for files without any fields set returns items that the label has not been applied to. You can combine the queries above to find items where the label is applied, but doesn't contain a value for a specific field: `'labels/contract' in labels AND labels/contract.comment IS NULL`.\n\n**2. Search based on single-valued fields**\n\nYou can write search queries to match expected field values. The following table\nshows the valid field queries:\n\n| What you want to query | Query string |\n|---------------------------------------------------------------|---------------------------------------------------------|\n| Items where comment is set to \"hello\" | `labels/contract.comment = 'hello'` |\n| Files where comment starts with \"hello\" | `labels/contract.comment STARTS WITH 'hello'` |\n| Files where status is executed | `labels/contract.status = 'executed'` |\n| Files where status is not executed | `labels/contract.status != 'executed'` |\n| Files where execution_date is before a specific date | `labels/contract.execution_date \u003c '2020-06-22'` |\n| Files where value_usd (integer) is less than a specific value | `labels/contract.value_usd \u003c 2000` |\n| Files where client_contact is set to a specific email address | `labels/contract.client_contact = 'alex@altostrat.com'` |\n\n**3. Search based on fields with multivalued fields (such as\nListOptions.max_entries \\\u003e 1)**\n\nFields that support multiple values can only be queried using the IN operator:\n\n- `'`\u003cvar translate=\"no\"\u003eEMAIL_ADDRESS\u003c/var\u003e`' IN labels/project.project_leads`\n- `NOT '`\u003cvar translate=\"no\"\u003eEMAIL_ADDRESS\u003c/var\u003e`' IN labels/project.project_leads`\n\nExample\n-------\n\nThe following code sample shows how to use one or more `labelId` to list all\nfiles with a specific label or field value from a Drive [file\nresource](/workspace/drive/labels/reference/rest/v2/labels). It also uses the\n[`files.list`](/workspace/drive/api/v2/reference/files/list) method. The request body must\nbe empty.\n\nIf you want to include `labelInfo` in the response, you also must specify:\n\n- [`includeLabels`](/workspace/drive/api/reference/rest/v2/files/get#query-parameters)\n as a comma-separated list of IDs.\n\n- `labelInfo` in the `fields` parameter to denote that you want the\n `labelInfo` returned within `includeLabels`.\n\nIf successful, the [response\nbody](/workspace/drive/api/reference/rest/v3/files/list#response-body) contains the list\nof files. \n\n### Java\n\n List\u003cFile\u003e fileList = driveService.files().list().setIncludeLabels(\"\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e,\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e\").setFields(\"items(labelInfo, id)\").setQ(\"'labels/\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e' in labels and 'labels/\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e' in labels\").execute().getItems();\n\n### Python\n\n file_list = drive_service.files().list(includeLabels=\"\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e,\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e\", q=\"'labels/\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e' in labels and 'labels/\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e' in labels\", fields=\"items(labelInfo, id)\").execute();\n\n### Node.js\n\n /**\n * Search for Drive files with specific labels\n * @return{obj} file list with labelInfo\n **/\n async function searchForFileWithLabels() {\n // Get credentials and build service\n // TODO (developer) - Use appropriate auth mechanism for your app\n\n const {GoogleAuth} = require('google-auth-library');\n const {google} = require('googleapis');\n\n const auth = new GoogleAuth({scopes: 'https://www.googleapis.com/auth/drive'});\n const service = google.drive({version: 'v3', auth});\n try {\n const fileList = await service.files.list({\n includeLabels: '\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e,\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e',\n q: '\\'labels/\u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e\\' in labels and \\'labels/\u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e\\' in labels',\n fields:'files(labelInfo, id)',\n });\n return file;\n } catch (err) {\n // TODO (developer) - Handle error\n throw err;\n }\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eLABEL_1_ID\u003c/var\u003e: The first `labelId` of a label to return.\n- \u003cvar translate=\"no\"\u003eLABEL_2_ID\u003c/var\u003e: The second `labelId` of a label to return."]]