Module: Tablesmith::HashRowsSource

Includes:
HashRowsBase
Defined in:
lib/tablesmith/hash_rows_source.rb

Instance Method Summary collapse

Methods included from HashRowsBase

#create_headers, #normalize_keys, #row_values, #sort_columns

Instance Method Details

#build_columns ⇒ Object

TODO: no support for deep



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# File 'lib/tablesmith/hash_rows_source.rb', line 24

def build_columns
  @columns ||= []
  map do |hash_row|
    @columns << hash_row.keys.map { |k| Tablesmith::Column.new(name: k) }
  end
  @columns.flatten!
end

#convert_item_to_hash_row(item) ⇒ Object 



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# File 'lib/tablesmith/hash_rows_source.rb', line 11

def convert_item_to_hash_row(item)
  flatten_hash_to_row(item, columns)
end

#flatten_hash_to_row(deep_hash, columns) ⇒ Object 



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# File 'lib/tablesmith/hash_rows_source.rb', line 15

def flatten_hash_to_row(deep_hash, columns)
  row = {}
  columns.each do |col_or_hash|
    value_from_hash(row, deep_hash, col_or_hash)
  end
  row
end

#hash_rows_to_text_table(hash_rows) ⇒ Object 



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# File 'lib/tablesmith/hash_rows_source.rb', line 47

def hash_rows_to_text_table(hash_rows)
  require 'text-table'

  header_row = hash_rows.first.keys
  table = []
  table << header_row

  hash_rows.each do |hash_row|
    row = []
    header_row.each do |header|
      row << hash_row[header]
    end
    table << row
  end

  # Array addition from text-table
  table.to_table(first_row_is_head: true)
end

#text_table ⇒ Object 



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# File 'lib/tablesmith/hash_rows_source.rb', line 6

def text_table
  build_columns if columns.nil?
  super
end

#value_from_hash(row, deep_hash, col_or_hash) ⇒ Object 



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# File 'lib/tablesmith/hash_rows_source.rb', line 32

def value_from_hash(row, deep_hash, col_or_hash)
  case col_or_hash
  when Tablesmith::Column
    row[col_or_hash.display_name] = deep_hash[col_or_hash.name].to_s
  when Hash
    col_or_hash.each_pair do |sub_hash_key, cols_or_hash|
      [cols_or_hash].flatten.each do |inner_col_or_hash|
        value_from_hash(row, deep_hash[sub_hash_key], inner_col_or_hash)
      end
    end
  end
rescue StandardError => e
  warn "#{e.message}: #{col_or_hash}" if @debug
end