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# Method name: save(collectionId: string, item: object, options: WixDataOptions)

# Method package: wixData

# Method menu location: wixData --> save

# Method Link: https://dev.wix.com/docs/velo/apis/wix-data/save.md

# Method Description:

Inserts or updates an item in a collection.

The `save()` function returns a Promise that resolves to the inserted or
 updated item after it has been added or updated in
 the specified collection. The Promise is rejected if the
 current user does not have the necessary permissions for the collection.

 The `save()` function inserts or updates the specified item, depending on
 whether it already exists in the collection. It compares the `_id` property
 value of the specified item with the `_id` property values of the items in
 the specified collection. If an item in the collection has that `_id` value,
 `save()` uses [`update()`](#update) to update the item in the
 collection, triggering the [`beforeUpdate()`](wix-data.Hooks.html#beforeUpdate)
 and [`afterUpdate()`](wix-data.Hooks.html#afterUpdate) hooks if they have
 been defined. If none of the items in the collection contain that `_id` value, the
 specified item does not have an `_id` property, or if the specified item's `id` property
 is `undefined`, `save()` uses [`insert()`](#insert) to add the specified item to the
 collection. This triggers the [`beforeInsert()`](wix-data.Hooks.html#beforeInsert)
 and [`afterInsert()`](wix-data.Hooks.html#afterInsert) hooks if they have
 been defined.

 Use the `options` parameter to run `save()` from backend code without
 checking for permissions or without its registered hooks.

 When saving an item to a collection that has a reference field, set
 the value of the reference field to the referenced item's `_id` value or
 the entire referenced item object.

 The maximum size of an item that you can save to a collection is 500kb.

 > **Notes:**
 > - If an item's `_id` property value is set to `null` or an empty string, an error is thrown.
 > - The `save()` function does not support multi-reference fields. For multi-reference fields, use [`insertReference()`](https://www.wix.com/velo/reference/wix-data/insertreference) or [`replaceReferences()`](https://www.wix.com/velo/reference/wix-data/replacereferences)
 > - [Translatable collections](https://support.wix.com/en/article/wix-multilingual-translating-cms-collection-content) do not allow insertion and modification of items when working in a non-primary language. For example, if a collection's primary language is English, and the site visitor is viewing the site in French, calling `save()` will fail and issue an error.



# Method Code Examples:

*** Note: do not assume any prop names or enum values other than the ones in the example.

## Save an item in a collection

```javascript
import wixData from 'wix-data';

// ...

let toSave = {
  "title":        "Mr.",
  "first_name":   "John",
  "last_name":    "Doe"
};

wixData.save("myCollection", toSave)
  .then((results) => {
    console.log(results); //see item below
 })
  .catch((err) => {
    console.log(err);
 });

/*  item is:
 *
 *  {
 *    "_id":          "rifk4nrk-dj4o-djhe-oidk-fnoqw4oiglk4i",
 *    "_owner":       "ffdkj9c2-df8g-f9ke-lk98-4kjhfr89keedb",
 *    "_createdDate": "2017-05-24T12:33:18.938Z",
 *    "_updatedDate": "2017-05-24T12:33:18.938Z",
 *    "title":        "Mr.",
 *    "first_name":   "John",
 *    "last_name":    "Doe"
 *  }
 */
```

## Save an item with a specified ID in a collection

```javascript
import wixData from 'wix-data';

// ...

let toSave = {
  "_id":          "00001",
  "title":        "Mr.",
  "first_name":   "John",
  "last_name":    "Doe"
};

wixData.save("myCollection", toSave)
  .then((results) => {
    console.log(results); //see item below
 })
  .catch((err) => {
    console.log(err);
 });

/*  item is:
 *
 *  {
 *    "_id":          "00001",
 *    "_owner":       "ffdkj9c2-df8g-f9ke-lk98-4kjhfr89keedb",
 *    "_createdDate": "2017-05-24T12:33:18.938Z",
 *    "_updatedDate": "2017-05-24T12:33:18.938Z",
 *    "title":        "Mr.",
 *    "first_name":   "John",
 *    "last_name":    "Doe"
 *  }
 */
```

## Save an item in a collection using data options

```javascript
import wixData from 'wix-data';

// ...

let toSave = {
  "_id":          "00001",
  "title":        "Mr.",
  "first_name":   "John",
  "last_name":    "Doe"
};

let options = {
  "suppressAuth": true,
  "suppressHooks": true
};

wixData.save("myCollection", toSave, options)
  .then((results) => {
    console.log(results); //see item below
 })
  .catch((err) => {
    console.log(err);
 });

/*  item is:
 *
 *  {
 *    "_id":          "00001",
 *    "_owner":       "ffdkj9c2-df8g-f9ke-lk98-4kjhfr89keedb",
 *    "_createdDate": "2017-05-24T12:33:18.938Z",
 *    "_updatedDate": "2017-05-24T12:33:18.938Z",
 *    "title":        "Mr.",
 *    "first_name":   "John",
 *    "last_name":    "Doe"
 *  }
 */
```

## Save an item including a reference to another item using the referenced item's ID

```javascript
import wixData from 'wix-data';

// ...

let countryId = "id-of-usa-item";

let toSave = {
  "title":        "Mr.",
  "first_name":   "John",
  "last_name":    "Doe",
  "country":      countryId
};

wixData.save("myCollection", toSave)
  .then((results) => {
    console.log(results); //see item below
  })
  .catch((err) => {
    console.log(err);
  });

/*  item is:
 *
 *  {
 *    "_id":          "rifk4nrk-dj4o-djhe-oidk-fnoqw4oiglk4i",
 *    "_owner":       "ffdkj9c2-df8g-f9ke-lk98-4kjhfr89keedb",
 *    "_createdDate": "2017-05-24T12:33:18.938Z",
 *    "_updatedDate": "2017-05-24T12:33:18.938Z",
 *    "title":        "Mr.",
 *    "first_name":   "John",
 *    "last_name":    "Doe",
 *    "country":      "id-of-usa-item"
 *  }
 */
```

## Save an item including a reference to another item using the reference item

```javascript
import wixData from 'wix-data';

// ...

let countryItem = // get country item from somewhere

let toSave = {
  "title":        "Mr.",
  "first_name":   "John",
  "last_name":    "Doe",
  "country":      countryItem
};

wixData.save("myCollection", toSave)
  .then((results) => {
    console.log(results); //see item below
  })
  .catch((err) => {
    console.log(err);
  });

/*  item is:
 *
 *  {
 *    "_id":          "rifk4nrk-dj4o-djhe-oidk-fnoqw4oiglk4i",
 *    "_owner":       "ffdkj9c2-df8g-f9ke-lk98-4kjhfr89keedb",
 *    "_createdDate": "2017-05-24T12:33:18.938Z",
 *    "_updatedDate": "2017-05-24T12:33:18.938Z",
 *    "title":        "Mr.",
 *    "first_name":   "John",
 *    "last_name":    "Doe",
 *    "country":      "id-of-usa-item"
 *  }
 */
```

---