How can I make it mandatory for users to choose one of the suggestions from Google Place Autocomplete before submitting a form on a landing page in Webflow?
TL;DR
- Integrate Google Places API into your Webflow project by setting up a Google Cloud account, obtaining an API key, and adding the API script to the project settings.
- Use a custom script to enable autocomplete on your form's input field and validate selection before form submission to ensure users pick a suggestion from autocomplete.
Ensuring that users select an option from Google Place Autocomplete before submitting a form can enhance the accuracy of the inputs. Here's how you can implement it in Webflow:
1. Integrate Google Place Autocomplete
- Set up Google API: Make sure you have a Google Cloud Platform account with the Places API enabled.
- Obtain API Key: Go to Google Cloud Console and acquire the API key.
- Add API to Webflow: In Webflow, go to Project Settings > Custom Code and add the Google Places API script within the
<head>section. Example script:<script src="https://maps.googleapis.com/maps/api/js?key=[YOURAPIKEY]&libraries=places"></script>
2. Set Up the HTML Structure
- Form Input Field: Create an input field in your Webflow form that will use the autocomplete functionality.
- Data Attribute: Assign a unique data attribute to this input (e.g.,
data-place-autocomplete="true").
3. Initialize the Autocomplete
- Custom Script: Use a custom script to apply the Google Places Autocomplete to your input field. Add this script within the Before </body> tag:
<script>
document.addEventListener("DOMContentLoaded", function() {
var input = document.querySelector('[data-place-autocomplete="true"]');
var autocomplete = new google.maps.places.Autocomplete(input);
});
</script>
4. Validate Selection Before Form Submission
- Validation Script: Ensure users select from autocomplete and prevent form submission otherwise. Add this script as well:
<script>
document.querySelector("form").addEventListener("submit", function(event) {
var input = document.querySelector('[data-place-autocomplete="true"]');
var placeSelected = input.getAttribute('data-place-id');
if (!placeSelected) {
alert("Please select a place from the suggestions.");
event.preventDefault();
}
});
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.addListener("place_changed", function() {
var place = autocomplete.getPlace();
input.setAttribute('data-place-id', place.place_id);
});
</script>
5. Test Your Form
- Perform Tests: Ensure the script works by trying to submit the form without selecting a suggestion and confirming the alert prevents it.
Summary
To make the autocomplete suggestion mandatory, you (1) integrate the Google Places API, (2) set up the autocomplete on your input field, and (3) use a validation script to ensure users select a suggestion before the form can be submitted. Adjust scripts as needed to match your form and field configurations.