From e3da43945c9266a0979a73364340a9b18c42bea9 Mon Sep 17 00:00:00 2001
From: girishkrishaweb <girish@krishaweb.com>
Date: Mon, 26 Apr 2021 14:32:51 +0530
Subject: [PATCH 1/2] Fix PHP 8 warning #795

---
 classes/Visualizer/Source.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/Visualizer/Source.php b/classes/Visualizer/Source.php
index 879e73cc5..4dd801add 100644
--- a/classes/Visualizer/Source.php
+++ b/classes/Visualizer/Source.php
@@ -335,7 +335,7 @@ public static final function get_date_formats_if_exists( $series, $data ) {
 	 *
 	 * @return string|null
 	 */
-	private static final function determine_date_format( $value, $type ) {
+	private static function determine_date_format( $value, $type ) {
 		if ( version_compare( phpversion(), '5.3.0', '<' ) ) {
 			do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'PHP version %s not supported', phpversion() ), 'error', __FILE__, __LINE__ );
 			return null;

From 86a741012bc49c3c685d470f2291be69346e2782 Mon Sep 17 00:00:00 2001
From: girishkrishaweb <girish@krishaweb.com>
Date: Tue, 4 May 2021 18:24:50 +0530
Subject: [PATCH 2/2] Fix undefined array index warning in PHP 8 #795

---
 classes/Visualizer/Render/Sidebar/Google.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/classes/Visualizer/Render/Sidebar/Google.php b/classes/Visualizer/Render/Sidebar/Google.php
index af55567a2..77d0d43fe 100644
--- a/classes/Visualizer/Render/Sidebar/Google.php
+++ b/classes/Visualizer/Render/Sidebar/Google.php
@@ -208,7 +208,7 @@ protected function _renderGeneralSettings() {
 				self::_renderSelectItem(
 					esc_html__( 'Position', 'visualizer' ),
 					'legend[position]',
-					$this->legend['position'],
+					isset( $this->legend['position'] ) ? $this->legend['position'] : '',
 					$this->_legendPositions,
 					esc_html__( 'Determines where to place the legend, compared to the chart area.', 'visualizer' )
 				);
@@ -216,7 +216,7 @@ protected function _renderGeneralSettings() {
 				self::_renderSelectItem(
 					esc_html__( 'Alignment', 'visualizer' ),
 					'legend[alignment]',
-					$this->legend['alignment'],
+					isset( $this->legend['alignment'] ) ? $this->legend['alignment'] : '',
 					$this->_alignments,
 					esc_html__( 'Determines the alignment of the legend.', 'visualizer' )
 				);
@@ -393,10 +393,12 @@ protected function _renderViewSettings() {
 					echo '<table class="viz-section-table" cellspacing="0" cellpadding="0" border="0">';
 						echo '<tr>';
 							echo '<td class="viz-section-table-column">';
-								echo '<input type="text" name="chartArea[left]" class="control-text" value="', $this->chartArea['left'] || $this->chartArea['left'] === '0' ? esc_attr( $this->chartArea['left'] ) : '', '" placeholder="20%">';
+								$chartarea_left = isset( $this->chartArea['left'] ) ? $this->chartArea['left'] : '';
+								echo '<input type="text" name="chartArea[left]" class="control-text" value="', $chartarea_left || '0' === $chartarea_left ? esc_attr( $chartarea_left ) : '', '" placeholder="20%">';
 							echo '</td>';
 							echo '<td class="viz-section-table-column">';
-								echo '<input type="text" name="chartArea[top]" class="control-text" value="', $this->chartArea['top'] || $this->chartArea['top'] === '0' ? esc_attr( $this->chartArea['top'] ) : '', '" placeholder="20%">';
+								$chartarea_top = isset( $this->chartArea['top'] ) ? $this->chartArea['top'] : '';
+								echo '<input type="text" name="chartArea[top]" class="control-text" value="', $chartarea_top || '0' === $chartarea_top ? esc_attr( $chartarea_top ) : '', '" placeholder="20%">';
 							echo '</td>';
 						echo '</tr>';
 					echo '</table>';