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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| # frozen_string_literal: true | ||
|
|
||
| class Admin::Db::SchemaParser | ||
| class Index | ||
| attr_reader :name, :table_name, :columns, :options | ||
|
|
||
| def initialize(name:, table_name:, columns:, options:) | ||
| @name = name | ||
| @table_name = table_name | ||
| @columns = columns | ||
| @options = options | ||
| end | ||
| end | ||
|
|
||
| attr_reader :indexes_by_table | ||
|
|
||
| def initialize(source) | ||
| parse(source) | ||
| end | ||
|
|
||
| private | ||
|
|
||
| def parse(source) | ||
| @indexes_by_table = {} | ||
| queue = [Prism.parse(source).value] | ||
| while (node = queue.shift) | ||
| if node.type == :call_node && node.name == :create_table | ||
| parse_create_table(node) | ||
| elsif node.type == :call_node && node.name == :add_index | ||
| parse_add_index(node) | ||
| else | ||
| queue.concat(node.compact_child_nodes) | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def parse_create_table(node) | ||
| table_name = parse_arguments(node).first | ||
| queue = node.compact_child_nodes | ||
| while (node = queue.shift) | ||
| if node.type == :call_node && node.name == :index | ||
| parse_index(node, table_name:) | ||
| else | ||
| queue.concat(node.compact_child_nodes) | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def parse_index(node, table_name:) | ||
| arguments = parse_arguments(node) | ||
| save_index( | ||
| name: arguments.last[:name], | ||
| table_name: table_name, | ||
| columns: arguments.first, | ||
| options: arguments.last | ||
| ) | ||
| end | ||
|
|
||
| def parse_add_index(node) | ||
| arguments = parse_arguments(node) | ||
| save_index( | ||
| name: arguments.last[:name], | ||
| table_name: arguments.first, | ||
| columns: arguments[1], | ||
| options: arguments.last | ||
| ) | ||
| end | ||
|
|
||
| def parse_arguments(node) | ||
| node.arguments.arguments.map { |a| parse_argument(a) } | ||
| end | ||
|
|
||
| def parse_argument(argument) | ||
| case argument | ||
| when Prism::StringNode | ||
| argument.unescaped | ||
| when Prism::SymbolNode | ||
| argument.unescaped.to_sym | ||
| when Prism::ArrayNode | ||
| argument.elements.map { |e| parse_argument(e) } | ||
| when Prism::KeywordHashNode | ||
| argument.elements.to_h do |element| | ||
| [element.key.unescaped.to_sym, parse_argument(element.value)] | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def save_index(name:, table_name:, columns:, options:) | ||
| @indexes_by_table[table_name] ||= [] | ||
| @indexes_by_table[table_name] << Index.new(name:, table_name:, columns:, options:) | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| # frozen_string_literal: true | ||
|
|
||
| class Admin::SystemCheck::MissingIndexesCheck < Admin::SystemCheck::BaseCheck | ||
| def skip? | ||
| !current_user.can?(:view_devops) | ||
| end | ||
|
|
||
| def pass? | ||
| missing_indexes.none? | ||
| end | ||
|
|
||
| def message | ||
| Admin::SystemCheck::Message.new(:missing_indexes_check, missing_indexes.join(', ')) | ||
| end | ||
|
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| private | ||
|
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| def missing_indexes | ||
| @missing_indexes ||= begin | ||
| expected_indexes_by_table.flat_map do |table, indexes| | ||
| expected_indexes = indexes.map(&:name) | ||
| expected_indexes - existing_indexes_for(table) | ||
| end | ||
| end | ||
| end | ||
|
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| def expected_indexes_by_table | ||
| schema_rb = Rails.root.join('db', 'schema.rb').read | ||
| schema_parser = Admin::Db::SchemaParser.new(schema_rb) | ||
| schema_parser.indexes_by_table | ||
| end | ||
|
|
||
| def existing_indexes_for(table) | ||
| ActiveRecord::Base.connection.indexes(table).map(&:name) | ||
| end | ||
| end |
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