class Ddr::Index::CSVQueryResult

Constants

CSV_MV_SEPARATOR
DESCMD_HEADER_CONVERTER
MAX_ROWS

Public Instance Methods

[](index_or_header) click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 27
def [](index_or_header)
  table.by_col_or_row![index_or_header]
end
csv_headers() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 55
def csv_headers
  query.fields.empty? ? :first_row : query_field_headings
end
csv_opts() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 35
def csv_opts
  { headers:           csv_headers,
    return_headers:    false,
    write_headers:     true,
    header_converters: [ DESCMD_HEADER_CONVERTER ],
  }
end
data() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 71
def data
  raw = conn.get("select", params: solr_csv_params)
  raw.gsub(/\\#{CSV_MV_SEPARATOR}/, CSV_MV_SEPARATOR)
end
delete_empty_columns!() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 19
def delete_empty_columns!
  table.by_col!.delete_if { |c, vals| vals.all?(&:nil?) }
end
each(&block) click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 23
def each(&block)
  table.by_row!.each(&block)
end
query_field_headings() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 51
def query_field_headings
  query.fields.map { |f| f.respond_to?(:heading) ? f.heading : f.to_s }
end
solr_csv_header?() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 59
def solr_csv_header?
  csv_headers == :first_row
end
solr_csv_opts() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 43
def solr_csv_opts
  { "csv.mv.separator" => CSV_MV_SEPARATOR,
    "csv.header"       => solr_csv_header?,
    "rows"             => solr_csv_rows,
    "wt"               => "csv",
  }
end
solr_csv_params() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 67
def solr_csv_params
  params.merge(solr_csv_opts)
end
solr_csv_rows() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 63
def solr_csv_rows
  query.rows || MAX_ROWS
end
table() click to toggle source
# File lib/ddr/index/csv_query_result.rb, line 31
def table
  @table ||= CSV.parse(data, csv_opts)
end