#399

backend/app/services/post_import_previewer.rb

@@ -57,7 +57,8 @@ class PostImportPreviewer
       attributes['tags'] = merged_tags(tag_sources, provenance['tags'])
       { source_row: row[:source_row], url: normal_url || url, attributes:, provenance:, tag_sources:,
         metadata_url: url,
-        fetch_warnings:, validation_warnings:, warnings: fetch_warnings + validation_warnings, errors:,
+        fetch_warnings:, validation_warnings:, warnings: fetch_warnings + validation_warnings,
+        validation_errors: errors, errors:,
         status: errors.present? ? 'error' : ((fetch_warnings + validation_warnings).present? ? 'warning' : 'ready'),
         existing: normal_url.present? && Post.exists?(url: normal_url) }
     end

backend/app/services/post_import_source_parser.rb

@@ -43,11 +43,18 @@ class PostImportSourceParser
     raise ArgumentError, 'JSON の投稿候補は配列にしてください．' unless value.is_a?(Array)
 
     ensure_limits!(value)
-    keys = value.grep(Hash).flat_map(&:keys).map(&:to_s).uniq
+    unless value.all?(Hash)
+      invalid = value.each_with_index.filter_map { |item, index| index + 1 unless item.is_a?(Hash) }
+      raise ArgumentError, "JSON の投稿候補は object の配列にしてください: 行 #{ invalid.join(', ') }"
+    end
+    keys = value.flat_map(&:keys).map(&:to_s).uniq
     raise ArgumentError, "列数は #{ MAX_COLUMNS } 列までです．" if keys.length > MAX_COLUMNS
     { columns: keys.each_with_index.map { |key, index| { key:, label: "#{ column_name(index) }：#{ key }" } },
       rows: value.each_with_index.map { |item, index| { source_row: index + 1,
-                                                         values: keys.map { json_cell(item.is_a?(Hash) ? item[_1] || item[_1.to_sym] : nil) } } } }
+                                                         values: keys.map { |key|
+                                                           value = item.key?(key) ? item[key] : item[key.to_sym]
+                                                           json_cell(value)
+                                                         } } } }
   rescue JSON::ParserError, KeyError, ArgumentError => e
     raise ArgumentError, "JSON の形式が不正です: #{ e.message }"
   end