Ultimate Member User Reviews - Adjust rating stats

um-reviews-adjust-rating-stats.php

<?php
	function um_custom_review_adjust_rating( $post_id, $old_rating, $new_rating, $new_user_id, $new_reviewer_id ) {
		
		update_post_meta( $post_id, '_rating', $new_rating );
		
		$old_user_id = get_post_meta( $post_id, '_user_id', true );
		$old_reviewer_id = get_post_meta( $post_id, '_reviewer_id', true );

		update_post_meta( $post_id, '_reviewer_id', $new_reviewer_id );
		update_post_meta( $post_id, '_user_id', $new_user_id );
		

			$reviews = get_user_meta( $new_user_id, '_reviews', true );
			if( ! is_array( $reviews ) ){
				$reviews = array();
			}

			foreach ($reviews as $key => $value) {
				if( empty( $key ) ){
					unset( $reviews[ $key ] );
				}
			}

			if ( ! isset( $reviews[ $new_reviewer_id ] ) ) {
				$reviews[ $new_reviewer_id ] = $new_rating;
				update_user_meta( $new_user_id, '_reviews', $reviews );
			}else{
				$reviews[ $new_reviewer_id ] = $new_rating;
				update_user_meta( $new_user_id, '_reviews', $reviews );
			}
			
			$reviews_compound = get_user_meta( $new_user_id, '_reviews_compound', true );
			if( $new_user_id == $old_user_id ){
				$reviews_compound = (int)$reviews_compound - (int)$old_rating;
			}
			$reviews_compound = (int)$reviews_compound + (int)$new_rating;
			update_user_meta( $new_user_id, '_reviews_compound', $reviews_compound );
			
			// total reviews
			if ( isset( $_REQUEST['publish'] )  ) {
				$reviews_total = get_user_meta( $new_user_id, '_reviews_total', true );
			
				if( ! $reviews_total ){
					$reviews_total = 1;
				}else{
					$reviews_total = $reviews_total + 1;
				}

				update_user_meta( $new_user_id, '_reviews_total', $reviews_total );
			}

			if( ! isset( $_REQUEST['publish'] )  && $new_user_id != $old_user_id ){
				// update new user review account
				$reviews_total = get_user_meta( $new_user_id, '_reviews_total', true );
			
				if( ! $reviews_total ){
					$reviews_total = 1;
				}else{
					$reviews_total = $reviews_total + 1;
				}

				update_user_meta( $new_user_id, '_reviews_total', $reviews_total );
				
			}

			
			// total reviews
			$reviews_total = get_user_meta( $new_user_id, '_reviews_total', true );

			// update rating average
			if ( $reviews_compound > 0 ) {
				$reviews_avg = $reviews_compound / $reviews_total;
				$reviews_avg = number_format( $reviews_avg, 2 );
				update_user_meta( $new_user_id, '_reviews_avg', (float) $reviews_avg );
			}

			// change reviewer
			$reviews = get_user_meta( $new_user_id, '_reviews', true );
			if( ! is_array( $reviews ) ){
				$reviews = array();
			}

			foreach ($reviews as $key => $value) {
				if( empty( $key ) ){
					unset( $reviews[ $key ] );
				}
			}


			// change reviewer ID
			if( ! empty( $new_reviewer_id ) && $new_reviewer_id != $old_reviewer_id ){
				
				$reviews[ $new_reviewer_id ] = $new_rating;
				
				if( isset( $reviews[ $old_reviewer_id ] ) ){
					unset( $reviews[ $old_reviewer_id ] );
				}

				foreach ( $reviews as $key => $value ) {
					if( empty( $key ) ){
						unset( $reviews[ $key ] );
					}
				}

				update_user_meta( $new_user_id, '_reviews', $reviews );
				
			}

			// change reciever
			if(  ! empty( $new_user_id ) && $new_user_id != $old_user_id  ){

				// update review count to abandoned profile
				$reviews_total = get_user_meta( $old_user_id, '_reviews_total', true );
				
				if( ! $reviews_total ){
					$reviews_total = 0;
				}else{
					$reviews_total = $reviews_total - 1;
				}
				update_user_meta( $old_user_id, '_reviews_total', $reviews_total );

				// update compounds of abandoned profile
				$reviews_compound = get_user_meta( $old_user_id, '_reviews_compound', true );
				$reviews_compound = (int)$reviews_compound - (int)$old_rating;
				update_user_meta( $old_user_id, '_reviews_compound', $reviews_compound );
				
				// total reviewews
				$reviews_total = get_user_meta( $old_user_id, '_reviews_total', true );

				// update rating average
				$reviews_avg = $reviews_compound / $reviews_total;
				$reviews_avg = number_format( $reviews_avg, 2 );

				if( $reviews_avg < 0 ) $reviews_avg = 0;

				update_user_meta( $old_user_id, '_reviews_avg', (float) $reviews_avg );
				
				$reviews = get_user_meta( $old_user_id, '_reviews', true );
				
				if( ! is_array( $reviews ) ){
					$reviews = array();
				}

				if( isset( $reviews[ $old_reviewer_id ] ) ){
					unset( $reviews[ $old_reviewer_id ] );
				}

				if( isset( $reviews[ $new_reviewer_id ] ) ){
					unset( $reviews[ $new_reviewer_id ] );
				}

				foreach ( $reviews as $key => $value ) {
					if( empty( $key ) ){
						unset( $reviews[ $key ] );
					}
				}
				
				update_user_meta( $old_user_id, '_reviews', $reviews );

			}

		
		
		
	}