BR to pass attachment from parent to child record (#2658)

* Create script.js

* Create read.md

Author: kishoretk92

Server-Side Components/Business Rules/Pass Attachments/read.md

@@ -0,0 +1,2 @@
+This script copies attachments from a source record in another table to the current record (likely a case or task). 
+It ensures that attachments are preserved when creating or linking records across tables.

Server-Side Components/Business Rules/Pass Attachments/script.js

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+//This script copies attachments from a source record in another table to the current record (likely a case or task). It ensures that attachments are preserved when creating or linking records across tables.
+
+
+(function executeRule(current, previous /*null when async*/) {
+
+if(!current.source_record || !current.source_table) {
+	gs.info('No source record found for' + current.number);
+	return;
+}
+var sourceId= current.source_record.toString();
+var sourceTable = current.source_table.toString();
+
+gs.info('coping attachments from' + sourceTable + '[' + sourceId +'] case' + current.number);
+
+try{
+var gsa = new GlideSysAttachment();
+var copiedCount = gsa.copy(sourceTable, sourceId, current.getTableName(), current.getUniqueValue());
+
+
+gs.info('Attachments copied from' + copiedCount +'attachment from' + sourceTable + ' to Case' +  current.number);
+}catch (e) {
+	gs.error('Attachment copied from case' +current.number + ': ' + e.message);
+}
+})(current, previous);