Ruby

CSV Append a Column with Values

See more CSV Examples

Append an additional column and initialize with a value. Ruby

require 'chilkat'

success = false

# First initialize the CSV with content.  

# permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
# lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
# mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
# flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
# infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
# gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed

bCrlf = true
sb = Chilkat::CkStringBuilder.new()
sb.AppendLine("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round",bCrlf)
sb.AppendLine("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b",bCrlf)
sb.AppendLine("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed",bCrlf)
sb.AppendLine("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a",bCrlf)
sb.AppendLine("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a",bCrlf)
sb.AppendLine("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed",bCrlf)

csv = Chilkat::CkCsv.new()

csv.put_HasColumnNames(true)
success = csv.LoadFromString(sb.getAsString())

# Show the initial CSV:
print csv.saveToString() + "\n";
print "----" + "\n";

# Now let's add a new rightmost column.
numColumns = csv.get_NumColumns()
numRows = csv.get_NumRows()

# Set the column name.
columnIdx = numColumns
csv.SetColumnName(columnIdx,"new_column")

# Add the column to each row.
i = 0
while i < numRows
    csv.SetCell(i,columnIdx,"newData")
    i = i + 1
end

# Show the updated CSV:
print csv.saveToString() + "\n";