Class: Sequel::Sqljs::Dataset

Inherits:
Dataset
  • Object
show all
Includes:
DatasetMethods
Defined in:
lib/bormashino_sequel_sqljs_adapter/sqljs.rb

Defined Under Namespace

Modules: ArgumentMapper

Constant Summary collapse

BindArgumentMethods = 
prepared_statements_module(:bind, ArgumentMapper)
PreparedStatementMethods = 
prepared_statements_module(:prepare, BindArgumentMethods)

Constants included from DatasetMethods

Sequel::Sqljs::DatasetMethods::CONSTANT_MAP, Sequel::Sqljs::DatasetMethods::EXTRACT_MAP, Sequel::Sqljs::DatasetMethods::INSERT_CONFLICT_RESOLUTIONS

Instance Method Summary collapse

Methods included from DatasetMethods

#cast_sql_append, #constant_sql_append, #delete, #explain, #having, #insert_conflict, #insert_ignore, #insert_select, #insert_select_sql, #quoted_identifier_append, #returning, #select, #supports_cte?, #supports_cte_in_subqueries?, #supports_deleting_joins?, #supports_derived_column_lists?, #supports_intersect_except_all?, #supports_is_true?, #supports_modifying_joins?, #supports_multiple_column_in?, #supports_returning?, #supports_timestamp_timezones?, #supports_where_true?, #supports_window_clause?, #supports_window_function_frame_option?, #supports_window_functions?

Instance Method Details

#complex_expression_sql_append(sql, op, args) ⇒ Object

Support regexp functions if using :setup_regexp_function Database option.



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# File 'lib/bormashino_sequel_sqljs_adapter/sqljs.rb', line 379

def complex_expression_sql_append(sql, op, args)
  case op
  when :~, :!~, :'~*', :'!~*'
    return super unless supports_regexp?

    case_insensitive = %i[~* !~*].include?(op)
    sql << 'NOT ' if %i[!~ !~*].include?(op)
    sql << '('
    sql << 'LOWER(' if case_insensitive
    literal_append(sql, args[0])
    sql << ')' if case_insensitive
    sql << ' REGEXP '
    sql << 'LOWER(' if case_insensitive
    literal_append(sql, args[1])
    sql << ')' if case_insensitive
    sql << ')'
  else
    super
  end
end

#fetch_rows(sql) ⇒ Object 



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# File 'lib/bormashino_sequel_sqljs_adapter/sqljs.rb', line 400

def fetch_rows(sql, &)
  execute(sql) do |result|
    columns = result[:columns].map(&:to_sym)
    type_procs =
      if types = result[:types]
        cps = db.conversion_procs
        columns.map { |n| types[n.to_s] }.map { |t| cps[base_type_name(t)] }
      end

    result[:result].each do |r|
      r['values'].map do |values|
        values.map.with_index do |v, i|
          value =
            if type_procs && type_proc = type_procs[i]
              type_proc.call(v)
            else
              v
            end
          [columns[i].to_sym, value]
        end.to_h
      end.each(&)
    end
    self.columns = columns
  end
end

#supports_regexp? ⇒ Boolean

Support regexp if using :setup_regexp_function Database option.

Returns:

  • (Boolean) 


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# File 'lib/bormashino_sequel_sqljs_adapter/sqljs.rb', line 427

def supports_regexp?
  db.allow_regexp?
end