#399

backend/app/services/post_import_runner.rb

@@ -11,7 +11,11 @@ class PostImportRunner
     raise ArgumentError, "取込件数は #{ MAX_ROWS } 件までです．" if @rows.length > MAX_ROWS
     raise ArgumentError, '取込データが大きすぎます．' if @rows.sum { |row| row.to_json.bytesize } > PostImportSourceParser::MAX_BYTES
 
-    results = @rows.map { |row| run_row(normalise_row(row)) }
+    normalised_rows = @rows.map { |row| normalise_row(row) }
+    source_rows = normalised_rows.map { _1['source_row'] }
+    raise ArgumentError, '元行番号が重複しています．' if source_rows.uniq.length != source_rows.length
+
+    results = normalised_rows.map { |row| run_row(row) }
     { created: results.count { _1[:status] == 'created' }, skipped: results.count { _1[:status] == 'skipped' },
       failed: results.count { _1[:status] == 'failed' }, rows: results }
   end
@@ -77,6 +81,8 @@ class PostImportRunner
     raise ArgumentError unless metadata_url.nil? || metadata_url.is_a?(String)
     raise ArgumentError if metadata_url.to_s.bytesize > PostImportSourceParser::MAX_CELL_BYTES
     raise ArgumentError if row.to_json.bytesize > PostImportSourceParser::MAX_BYTES
+    tag_sources = row['tag_sources']
+    raise ArgumentError unless tag_sources.nil? || tag_sources.is_a?(Hash)
   end
 
   def normalise_row row