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@@ -117,7 +117,8 @@ class CourseBuilder {
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foreach ($this->tools_to_build as $tool) {
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$function_build = 'build_'.$tool;
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- $this->$function_build($session_id, $course_code, $with_base_content, $this->specific_id_list[$tool]);
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+ $specificIdList = isset($this->specific_id_list[$tool]) ? $this->specific_id_list[$tool] : null;
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+ $this->$function_build($session_id, $course_code, $with_base_content, $specificIdList);
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}
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if (!empty($session_id) && !empty($course_code)) {
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