DataFrame method on composite type

composite-df.jl

function DataFrame(array::Array{TWEETS, 1})
    
    #Empty df as container for results
    resultdf = DataFrame()
    
    #Get array of field names as symbols from composite type
    cols = names(TWEETS) 
    
    #For each field in composite type...
    for column in cols
        
        #Temp array to hold results
        temp = {}
        
        #Loop over array of composite type, get individual field value from outer loop value
        for value in array
            push!(temp, getfield(value, column))
        end
        
        #Append each column to df
        resultdf = hcat(resultdf, temp)
        
    end
    
    #Use cols array above to properly name df columns
    names!(resultdf, cols)
    
    return resultdf
    
end