Hello
I can’t set the ratings on the site.
I followed step by step, using the same variables (and database names), the Corvid guide.
I leave below the code I’m using.
When, in the preview, I click on it, it tells me:
Cannot read property ‘avg’ of null
CODE:
export function ratingsInput1_change_1(event) {
//Add your code for this event here:
$w(“#dataset1”).onReady(() => {
// get the current item from the dataset
const currentItem = $w(“#dataset1”).getCurrentItem();
// get the current average rating, number of ratings, and
//total ratings for the current dataset item
const average = currentItem.avg;
const count = currentItem.numRatings;
const total = currentItem.totalRatings;
// get the new rating from the ratings input
const newRating = $w(‘#ratingsInput1’).value;
// calculate the new average rating based on the current
//average and count
const newAverageLong = (total + newRating) / (count +1);
// Round the average rating to 1 decimal point
const newAverageShort = Number.parseFloat(newAverageLong).toFixed(1);
// set the dataset fields to the new average, total
// ratings, and number of ratings
$w(‘#dataset1’).setFieldValues({
‘avg’: newAverageShort,
‘totalRatings’: total + newRating,
‘numRatings’: (count + 1)
});
// save the dataset fields to the collection
$w(‘#dataset1’).save()
. catch ((err) => {
console.log(‘could not save new rating’);
});
});
}
I hope you can help me.
Have a nice day!