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# Method name: and(query: PublicPlansQueryBuilder)

# Method package: wixPricingPlansBackend

# Method menu location: wixPricingPlansBackend --> PublicPlansQueryBuilder --> and

# Method Link: https://dev.wix.com/docs/velo/apis/wix-pricing-plans-backend/public-plans-query-builder/and.md

# Method Description:

Adds an `and` condition to the query.

The `and()` function adds an `and` condition to a `PublicPlansQueryBuilder`.
 A query with an `and` returns all the items that match the query
 as defined up to the `and` function.

 Note that when chaining multiple `PublicPlansQueryBuilder` functions to a query an `and` condition is assumed.
 In such cases, you do not need to add a call to the `and()` function.
 For example, this query returns results where the plan was created during a 
 certain date range **and** the plan's
 slug starts with "gold" (such as `gold`, `gold-vip`, `gold-trial`).

 ```javascript
 wixPricingPlansBackend.queryPublicPlans()
   .between("_createdDate", specificDate, now)
   .startsWith("slug", "gold");
 ```

 The `and()` function is needed when performing compound queries. For
 example, the final query, `typeAndDateQuery`, in this set of queries returns results where a plan
 is created after a certain date, **and** the plan is either 
 a "gold" or a "silver" membership plan, as defined in the plan's slug.

 ```javascript
 const slugPlanQuery = 
   wixPricingPlansBackend.queryPublicPlans()
     .startsWith("slug", "silver")
     .or(
       wixPricingPlansBackend.plans.queryPublicPlans()
         .startsWith("slug", "gold")
     );

 const datePlanQuery = 
   wixPricingPlansBackend.queryPublicPlans()
     .between("_createdDate", date, now);
     );

 const typeAndDateQuery = slugPlanQuery.and(datePlanQuery);
 ```

 The 'and()' function is designed to work with 2 or more queries or filters. 
 If you use it on its own, it will return all the items in a collection.



# Method Code Examples:

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

## Add an `and` filter to a query

```javascript
const newQuery = query1.and(query2);
```

## Create a compound query, add an `and` filter, and run it

```javascript
import wixPricingPlansBackend from 'wix-pricing-plans-backend';

// ...

const now = new Date();
const date = new Date("2020-11-01");

const slugPlanQuery = 
  wixPricingPlansBackend.queryPublicPlans()
    .startsWith("slug", "silver")
    .or(
      wixPricingPlansBackend.queryPublicPlans()
        .startsWith("slug", "gold")
    );

const datePlanQuery = 
  wixPricingPlansBackend.queryPublicPlans()
    .between("_createdDate", date, now);
  
const typeAndDateQuery = slugPlanQuery.and(datePlanQuery);

return wixPricingPlansBackend.queryPublicPlans()
  .ne("primary", true).and(typeAndDateQuery)
  .find()
  .then((publicPlans) => {
    if(publicPlans.items.length > 0) {
      const items = publicPlans.items;
      const firstItem = items[0];
      const totalCount = publicPlans.totalCount;
      const pageSize = publicPlans.pageSize;
      const currentPage = publicPlans.currentPage;
      const totalPages = publicPlans.totalPages;
      const hasNext = publicPlans.hasNext();
      const hasPrev = publicPlans.hasPrev();
      const length = publicPlans.length;
      const query = publicPlans.query;
    } else {
      // handle case where no matching public plans found
    }
  } )
  .catch((error) => {
    const queryError = error;
  } );

/*
 * The results contain public
 * plans with slugs that start with 
 * "gold" or "silver":
 *
 * gold-vip
 * silver
 * silver-vip
 * 
 * But not the primary public plan (slug = gold)
 * 
 * And no public plans created earlier than 
 * November 11, 2020
 */
```

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