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# Method name: not(query: WixDataQuery)

# Method package: wixData

# Method menu location: wixData --> WixDataQuery --> not

# Method Link: https://dev.wix.com/docs/velo/apis/wix-data/wix-data-query/not.md

# Method Description:

Adds a `not` condition to the query or filter.

The `not()` function adds a `not` condition to a `WixDataQuery` or `WixDataFilter`. A query or filter with a `not`
 returns all the items that match the query or filter as defined up to the `not`
 function, but don't match the query or filter passed to the `not` function.

 If the query or filter only contains a `not()` function, it returns all the items
 that don't match the query defined by the `not` method.

 The collections referenced by both the initial query and the query passed
 to the `not` function must be the same.



# Method Code Examples:

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

## Add a not to a query

```javascript
let newQuery = query1.not(query2);
```

## Create a query, add a not, and run it

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

// ...

wixData.query("myCollection")
  .gt("age", 25)
  .not(
    wixData.query("myCollection")
      .eq("access_type", "restricted")
  )
  .find()
  .then((results) => {
    if(results.items.length > 0) {
      let items = results.items;
      let firstItem = items[0];
      let totalCount = results.totalCount;
      let pageSize = results.pageSize;
      let currentPage = results.currentPage;
      let totalPages = results.totalPages;
      let hasNext = results.hasNext();
      let hasPrev = results.hasPrev();
      let length = results.length;
      let query = results.query;
    } else {
      // handle case where no matching items found
    }
  })
  .catch((error) => {
    let errorMsg = error.message;
    let code = error.code;
  });
```

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