fix: 解决each_method的逻辑错误

lib/tallty_import_export/export.rb

@@ -65,7 +65,7 @@ module TalltyImportExport
       end
     end
 
-    def export_workbook workbook, records
+    def export_workbook workbook, association_records
       # excel导出样式
       alignment = { vertical: :center, horizontal: :center }
       border    = { color: '969696', style: :thin }
@@ -89,25 +89,29 @@ module TalltyImportExport
         merge_column_hash = {}
         first_content_row_index = respond_to?(:first_header) ? 2 : 1
 
-        each_method = @each_method || :each
-        records.try_method(each_method).with_index do |record, index|
+        index = 0
+        association_records.each do |association_record|
           row = []
           headers.each_with_index do |header, col_index|
-            _data = handle_data(record, header, index)
-            if header[:merge].present? && last_row.present? && _data == last_row[col_index]
-              # 这里使用二维数组，每个数组里都是列内容相同的各行
-              merge_column_hash[col_index] ||= []
-              if merge_column_hash[col_index].last&.last == index + first_content_row_index - 1
-                # 说明内容和上面的是延续的，继续加入之前的数组
-                merge_column_hash[col_index].last << index + first_content_row_index
-              else
-                merge_column_hash[col_index] << [index + first_content_row_index - 1, index + first_content_row_index]
+            records = @each_method.present? ? association_record.try_method(@each_method) : [association_record]
+            records.each do |record|
+              index += 1
+              _data = handle_data(record, header, index)
+              if header[:merge].present? && last_row.present? && _data == last_row[col_index]
+                # 这里使用二维数组，每个数组里都是列内容相同的各行
+                merge_column_hash[col_index] ||= []
+                if merge_column_hash[col_index].last&.last == index + first_content_row_index - 1
+                  # 说明内容和上面的是延续的，继续加入之前的数组
+                  merge_column_hash[col_index].last << index + first_content_row_index
+                else
+                  merge_column_hash[col_index] << [index + first_content_row_index - 1, index + first_content_row_index]
+                end
               end
+              row.push(_data)
             end
-            row.push(_data)
+            sheet.add_row row, style: title3, height: @row_height, types: headers.map{|header| header[:format]&.to_sym}
+            last_row = row
           end
-          sheet.add_row row, style: title3, height: @row_height, types: headers.map{|header| header[:format]&.to_sym}
-          last_row = row
         end
         # 需要根据column进行多行的内容合并
         if merge_column_hash.present?