Class: TestCentricity::ExcelData
- Defined in:
- lib/testcentricity_web/data_objects/excel_helper.rb
Class Method Summary collapse
- .read_range_data(file, sheet, range_spec) ⇒ Object
- .read_row_data(file, sheet, row_spec, columns = nil) ⇒ Object
- .read_row_from_pool(file, sheet, row_spec, columns = nil) ⇒ Object
- .row_spec_exists?(file, sheet, row_spec) ⇒ Boolean
- .worksheet_exists?(file, sheet) ⇒ Boolean
- .write_row_data(file, sheet, row_spec, row_data) ⇒ Object
Class Method Details
.read_range_data(file, sheet, range_spec) ⇒ Object
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 179 def self.read_range_data(file, sheet, range_spec) raise "File #{file} does not exists" unless File.exist?(file) work_book = Spreadsheet.open(file) work_sheet = work_book.worksheet(sheet) # get column headings from row 0 of worksheet headings = work_sheet.row(0) column_number = 0 found = false headings.each do |heading| if heading == 'ROW_NAME' found = true break end column_number += 1 end raise "Could not find a column named ROW_NAME in worksheet #{sheet}" unless found # find cell(s) in ROW_NAME column containing a string that matches the range_spec parameter found = [] row_number = 0 work_sheet.each do |row| if row[column_number] == range_spec found.push(row_number) elsif !found.empty? break end row_number += 1 end raise "Could not find a row named '#{range_spec}' in worksheet #{sheet}" if found.empty? result = [] found.each do |row| result.push(read_row_data(file, sheet, row)) end result end |
.read_row_data(file, sheet, row_spec, columns = nil) ⇒ Object
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 121 def self.read_row_data(file, sheet, row_spec, columns = nil) raise "File #{file} does not exists" unless File.exist?(file) work_book = Spreadsheet.open(file) work_sheet = work_book.worksheet(sheet) # get column headings from row 0 of worksheet headings = work_sheet.row(0) # if row_spec is a string then we have to find a matching row name if row_spec.is_a? String column_number = 0 found = false headings.each do |heading| if heading == 'ROW_NAME' found = true break end column_number += 1 end raise "Could not find a column named ROW_NAME in worksheet #{sheet}" unless found # find first cell in ROW_NAME column containing a string that matches the row_spec parameter found = false row_number = 0 work_sheet.each do |row| if row[column_number] == row_spec found = true break end row_number += 1 end raise "Could not find a row named '#{row_spec}' in worksheet #{sheet}" unless found data = work_sheet.row(row_number) # if row_spec is a number then ensure that it doesn't exceed the number of available rows elsif row_spec.is_a? Numeric raise "Row # #{row_spec} is greater than number of rows in worksheet #{sheet}" if row_spec > work_sheet.last_row_index data = work_sheet.row(row_spec) end # if no columns have been specified, return all columns columns = headings if columns.nil? # create results hash table result = Hash.new columns.each do |column| column_number = 0 found = false headings.each do |heading| if column == heading value = data[column_number].to_s value = calculate_dynamic_value(value) if value.start_with? 'eval!' result[column] = value found = true break end column_number += 1 end raise "Could not find a column named '#{column}' in worksheet #{sheet}" unless found end result end |
.read_row_from_pool(file, sheet, row_spec, columns = nil) ⇒ Object
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 55 def self.read_row_from_pool(file, sheet, row_spec, columns = nil) raise "File #{file} does not exists" unless File.exist?(file) work_book = Spreadsheet.open(file) work_sheet = work_book.worksheet(sheet) pool_spec_key = "#{sheet}:#{row_spec}" if @mru.key?(pool_spec_key) pool_spec = @mru[pool_spec_key] row_start = pool_spec[:start_row] row_end = pool_spec[:num_rows] pool_rows = (row_start..row_start + row_end - 1).to_a mru_rows = pool_spec[:used_rows] new_row = pool_rows.sample.to_i if mru_rows.size == pool_spec[:num_rows] mru_rows = [new_row] else while mru_rows.include?(new_row) new_row = pool_rows.sample.to_i end mru_rows.push(new_row) mru_rows.sort! end pool_spec = { start_row: row_start, num_rows: row_end, used_rows: mru_rows } else # get column headings from row 0 of worksheet headings = work_sheet.row(0) column_number = 0 found = false headings.each do |heading| if heading == 'ROW_NAME' found = true break end column_number += 1 end raise "Could not find a column named ROW_NAME in worksheet #{sheet}" unless found # find cell(s) in ROW_NAME column containing a string that matches the row_spec parameter found = [] row_number = 0 work_sheet.each do |row| if row[column_number] == row_spec found.push(row_number) elsif !found.empty? break end row_number += 1 end raise "Could not find a row named '#{row_spec}' in worksheet #{sheet}" if found.empty? new_row = found.sample.to_i pool_spec = { start_row: found[0], num_rows: found.size, used_rows: [new_row] } end @mru[pool_spec_key] = pool_spec read_row_data(file, sheet, new_row, columns) end |
.row_spec_exists?(file, sheet, row_spec) ⇒ Boolean
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 23 def self.row_spec_exists?(file, sheet, row_spec) exists = false if worksheet_exists?(file, sheet) work_book = Spreadsheet.open(file) work_sheet = work_book.worksheet(sheet) # get column headings from row 0 of worksheet headings = work_sheet.row(0) # if row_spec is a string then we have to find a matching row name if row_spec.is_a? String column_number = 0 exists = false headings.each do |heading| if heading == 'ROW_NAME' exists = true break end column_number += 1 end raise "Could not find a column named ROW_NAME in worksheet #{sheet}" unless exists # find first cell in ROW_NAME column containing a string that matches the row_spec parameter exists = false work_sheet.each do |row| if row[column_number] == row_spec exists = true break end end end end exists end |
.worksheet_exists?(file, sheet) ⇒ Boolean
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 8 def self.worksheet_exists?(file, sheet) exists = false if File.exist?(file) work_book = Spreadsheet.open(file) worksheets = work_book.worksheets worksheets.each do |worksheet| if worksheet.name == sheet exists = true break end end end exists end |
.write_row_data(file, sheet, row_spec, row_data) ⇒ Object
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# File 'lib/testcentricity_web/data_objects/excel_helper.rb', line 215 def self.write_row_data(file, sheet, row_spec, row_data) raise "File #{file} does not exists" unless File.exist?(file) work_book = Spreadsheet.open(file) work_sheet = work_book.worksheet(sheet) # get column headings from row 0 of worksheet headings = work_sheet.row(0) # find a matching row name column_number = 0 found = false headings.each do |heading| if heading == 'ROW_NAME' found = true break end column_number += 1 end raise "Could not find a column named ROW_NAME in worksheet #{sheet}" unless found # find first cell in ROW_NAME column containing a string that matches the row_spec parameter found = false row_number = 0 work_sheet.each do |row| if row[column_number] == row_spec found = true break end row_number += 1 end raise "Could not find a row named '#{row_spec}' in worksheet #{sheet}" unless found # iterate through the row_data Hash row_data.each do |column, value| column_number = 0 found = false # find the column heading that matches the specified column name headings.each do |heading| if heading == column found = true break end column_number += 1 end raise "Could not find a column named '#{column}' in worksheet #{sheet}" unless found # set the value of the specified row and column work_sheet.rows[row_number][column_number] = value end # iterate through all worksheets so that all worksheets are saved in new Excel document worksheets = work_book.worksheets worksheets.each do |worksheet| headings = worksheet.row(0) worksheet.rows[0][0] = headings[0] end # write all changes to new Excel document outfile = file.gsub(File.basename(file), 'output.xls') work_book.write outfile # delete original Excel document File.delete(file) # rename new Excel document, replacing the original File.rename(outfile, file) end |