feat: add import exchange_to_ids

lib/tallty_import_export/import.rb

@@ -21,13 +21,35 @@ module TalltyImportExport
 
     # xlsx_file 为 file path or file object or TalltyImportExport::Excel.new
     def import_xlsx xlsx_file, associations, **options
+      process_xlsx_line_info(xlsx_file, associations, **options) do |line_info, associations|
+        process_line_info(line_info, associations)
+      end
+    end
+
+    def exchange_to_ids xlsx_file, associations, **options
+      errors = []
+      ids = []
+      process_xlsx_line_info(xlsx_file, associations, **options) do |line_info, associations|
+        ids << exchange_line_info_to_id(line_info, associations, errors)
+      end
+
+      if errors.any?
+        error_msg = errors.map do |line_info|
+          "【#{@primary_keys.map { |key| line_info[key] }.join(' - ')}】"
+        end.join(' ')
+        raise RecordNotFountError.new("以下内容未找到: #{error_msg}")
+      end
+      return ids.compact.uniq
+    end
+
+    def process_xlsx_line_info xlsx_file, associations, **options
       @associations = associations
       # 先处理获取出来Excel每行的数据, line_info
       process_options(options)
 
       if TalltyImportExport::Excel === xlsx_file
         xlsx_file.rows.each_with_excel_hash(@excel_hash) do |line_info|
-          process_line_info(line_info.with_indifferent_access, associations)
+          yield line_info.with_indifferent_access, associations
         end
       else
         file_path = xlsx_file.is_a?(String) ? xlsx_file : xlsx_file.path
@@ -35,7 +57,7 @@ module TalltyImportExport
         xlsx.each_with_pagename do |_sheetname, sheet|
           sheet.each(**@excel_hash).with_index do |line_info, index|
             next if index == 0
-            process_line_info(line_info.with_indifferent_access, associations)
+            yield line_info.with_indifferent_access, associations
           end
         end
       end
@@ -174,5 +196,27 @@ module TalltyImportExport
         associations.create!(line_info.clone.except!(*@skip_keys))
       end
     end
+
+    def exchange_line_info_to_id line_info, associations, errors
+      # 去除空行内容
+      return unless line_info.values.any?(&:present?)
+      context.line_info = line_info
+
+      return unless primary_keys.present?
+      ids = associations.where(line_info.clone.extract!(*primary_keys)).pluck(:id)
+
+      context.last_line_info = line_info
+
+      errors << line_info unless ids[0]
+      return ids[0]
+    end
+
+    class RecordNotFountError < StandardError
+      attr_accessor :message
+      def initialize message
+        @message = message
+        super()
+      end
+    end
   end
 end