4 Ways to Handle Large Datasets in Gravity Forms

Need a Gravity Forms Drop Down to handle hundreds — or even thousands — of choices? Here are four ways to make it happen.

  1. Do all those choices actually need to live in one field?
  2. 1. Raise the limit
  3. 2. Make thousands of choices searchable
  4. 3. Get clean, unique results from large lists
  5. 4. Pull from multiple database tables at once 
  6. The limit does not exist

Got a Drop Down field with thousands of choices to manage? Totally doable.

But adding them one by one isn’t practical, especially if that list keeps getting updated. A better approach is to keep your data somewhere outside your form, like a spreadsheet or a database table, and connect it to your field with Populate Anything — it pulls everything in as choices automatically.

Once you start pulling from a real dataset though, size starts to matter. And depending on how large it gets, there are a few ways to handle it. But first…

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Do all those choices actually need to live in one field?

Sometimes, the answer is no. By default, Populate Anything caps results at 500 at a time, and for good reason — to keep your forms fast. So if your data naturally breaks into smaller groups, you can chain your dropdown fields instead, where picking something in one field narrows down what shows up in the next.

Think country, then state, then city, instead of one long scrollable list. Each list stays smaller, and the 500 cap may never come up.

But if chaining doesn’t fit your data, or one field really needs to hold 500+ choices, here are four ways to handle it with Populate Anything.

1. Raise the limit

If your dataset is just past the 500 mark, there’s a quick fix for that — a hook, which is a small snippet of code you install using a plugin like Code Snippets, that tells Populate Anything to show more than 500 results.

Show snippet

To use: swap 123 with your form ID, 4 with your field ID, and 1000 with the limit you need.

add_filter( 'gppa_query_limit_123_4', function( $query_limit, $object_type ) {
	return 1000;
}, 10, 2 );

Need to apply this to all your fields, or only fields pulling from a specific source like Posts or Users? The docs have versions for that too.

New to hooks? Check out our wizard’s guide to using hooks.

We’ve seen this work in support. One customer was building a vehicle make/model selector, populating from a spreadsheet with over 700 rows. Raising the limit was all it took.

One thing to keep in mind: showing more results uses more memory, so it’s best to apply the fix to the one field that needs it, rather than every dropdown on the form.

2. Make thousands of choices searchable

If your dropdown needs to hold thousands of choices, loading them all at once isn’t ideal for performance. Instead, the field can wait until the user starts typing and fetch only the matching results.

To do this, you’ll need Advanced Select, which turns your standard dropdown into a search box. Pair it with Populate Anything, and only matching results load as you type instead of everything at once.

One great real-world example of this is a Spotlight we wrote about a musician who used this exact setup to make 40,000+ albums instantly searchable.

3. Get clean, unique results from large lists

Heads up

This section only applies when your field pulls directly from a database table. If you’re populating from Posts, Users, or Entries, feel free to skip ahead.

Populate Anything’s Only Show Unique Results setting does what it says — but only within the first 500 rows it fetches. Any unique values past that point won’t appear.

Raising the query limit works, but with a large dataset, that can come at a real performance cost. To avoid that trade-off, use our snippet to fetch only unique values you actually need.

Here’s the snippet. Just install it using a plugin like Code Snippets and you’re good to go.

Show snippet
add_filter( 'gppa_object_type_database_query', function( $query, $args, $db_object_type ) {
	global $wpdb;

	$order_by       = rgars( $args, 'ordering/orderby' );
	$template_value = rgars( $args, 'templates/value' );
	$template_label = rgars( $args, 'templates/label' );
	$are_all_same   = count( array_unique( array( $order_by, $template_value, $template_label ) ) ) === 1;

	if ( $are_all_same ) {
		// %i is a valid placeholder as of WP 6.2
		// phpcs:ignore
		$query = str_replace( 'SELECT *', $wpdb->prepare( 'SELECT DISTINCT %i', $order_by ), $query );
	}

	return $query;
}, 10, 3 );

Note: make sure your Ordering, Value, and Label settings are all set to the same column for the snippet to work.

We’ve seen this come up in support. A customer was populating city and school-name fields from a large database, and some options simply weren’t appearing, even with Only Show Unique Results enabled. Turns out, that’s exactly what our snippet is for. 😉

4. Pull from multiple database tables at once 

Heads up

This section only applies when your data lives across multiple database tables. If you’re populating from Posts, Users, Entries, or a single table, feel free to skip ahead.

Sometimes the data a large dropdown needs lives in more than one place — like orders in one table, customer details in another.

To make it easier for Populate Anything to pull from both, you can combine them into a database view, which treats them as a single source.

It does involve some database work, so feel free to reach out to a support wizard if it feels too advanced. 🧙🏼

Key Takeaways

  • Populate Anything limits query results to 500 items by default, to keep forms fast
  • There are four ways to work past that limit, and the right one depends on your data source and how large the dataset is
  • When users need to search through thousands of choices, Advanced Select is the best fit
  • When your data is spread across multiple database tables, a database view lets Populate Anything read them as a single source

The limit does not exist

You don’t have to pick just one approach. A few of these options can work together in the same form.

Got a dataset that refuses to behave? Drop a comment below — we love a good weird form problem. 🔮

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