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Generate Array from JSON to insert records into data base

Hi:

I'm trying to generate an array of values that I can insert into my database from a JSON string that I receive.


So far:  I'm able to generate a dictionary object with the code

Dictionary<string, object> dict = Utilities.Dictionary_Get_From_JSON(ref data_value);

The pairs in the dictionary look something like this:



"cmi_interactions8.id":"Question9_1",
"cmi_interactions8.type":"true-false",
"cmi_interactions8.student_response":"t",
"cmi_interactions8.result":"correct",

"cmi_interactions9.id":"Question10_1",
"cmi_interactions9.type":"true-false",
"cmi_interactions9.student_response":"f",
"cmi_interactions9.result":"correct",

"cmi_interactions10.id":"Question11_1",
"cmi_interactions10.type":"true-false",
"cmi_interactions10.student_response":"t",
"cmi_interactions10.result":"wrong"

It's at this point that I start hitting the wall.

I am trying to generate an array or table that looks like this

ID             Type          student_response  result  
Question9_1    true-false    t                 correct
Question9_1    true-false    f                 correct
Question9_1    true-false    t                 wrong

and then insert the data from that array into my database:

foreach row in table/array
   InsertRecord(id, type, student_response, result)

Any suggestions on how to do this would be greatly appreciated.

RBS
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RBS
Asked:
RBS
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1 Solution
 
RBSAuthor Commented:
whoops, my array should have looked like...


ID             Type          student_response  result  
Question9_1    true-false    t                 correct
Question10_1    true-false    f                 correct
Question11_1    true-false    t                 wrong


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ddayx10Commented:
Although I appreciate what you've posted so far it would be easier to help if I could see:

1. The original JSON serialized string (maybe thats data_value)
2. This function Utilities.Dictionary_Get_From_JSON(ref data_value)
3. A simple version of this class cmi_interactions if you have it.

The more clear I can see your Dictionary the better.

If you provide that then I'd ask you the question (for going forward)... Are you sure using/casting to Dictionary<string, object> is the way you want to go? Is there flex on that or not?
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RBSAuthor Commented:
Thanks ddayx10 - I've solved the problem on my own - the dictionary seemed to work fine.  Appreciate your response, though

Roger
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RBSAuthor Commented:
Here's the solution I came up with:

 
private static bool UpdateAnswers(int RecordId, string data_value)
    {

        Record record = DataAccess.Records_Get(RecordId);

        //Get dictionary of all terms imported from JSON string data_value
        JavaScriptSerializer ser = new JavaScriptSerializer();
        SortedDictionary<string, object> dict = ser.Deserialize<SortedDictionary<string, object>>(data_value);

        int length = dict.Count;
        string cmi;
        string aNumber;



        //Create a Sub Dictionary containing only the terms that have cmi.interactions.N in them
        SortedDictionary<string, string> studentAnswer = new SortedDictionary<string, string>();

        //From the studentAnswer Dictionary, we will generate an array that will contain the data to be entered in the db
        //Create the array that will store the values of the student interactions 
        string[,] scorray = new string[50, 5];
        try
        {
            foreach (KeyValuePair<string, object> pair in dict)
            {
                //Create Dictionary studentAnswer with only the com.interactions   
                //We will use this as a basis to add the student answers to the database
                try
                {
                    cmi = pair.Key.Substring(0, 8);
                    aNumber = pair.Key.Substring(17, 1);
                    if (cmi == "cmi.inte" & pair.Key.Substring(17, 1) != "_")
                        studentAnswer.Add(pair.Key.ToString(), pair.Value.ToString());
                }
                catch { }
            }

            foreach (KeyValuePair<string, string> pair in studentAnswer)
            {
                //word[0] = cmi
                //word[1] = interactions
                //word[2] = interaction Number (N)
                //word[3] = key - e.g.  id, type, student_response, result

                string chars = @".";
                string[] words = pair.Key.ToString().Split(chars.ToCharArray());

                switch (words[3].ToString())
                {
                    case "id":
                        scorray[Convert.ToInt32(words[2]), (int)SCORMField.id] = pair.Value;
                        break;

                    case "type":  //“true-false”, “choice”, “fill-in”, “long-fill-in”, “matching”, “performance”, “sequencing”, “likert”, “numeric” or “other”
                        scorray[Convert.ToInt32(words[2]), (int)SCORMField.type] = pair.Value;
                        break;

                    case "student_response":   //string 
                        scorray[Convert.ToInt32(words[2]), (int)SCORMField.student_response] = pair.Value;
                        break;

                    case "result":  //correct, wrong “incorrect”, “unanticipated”, “neutral” or real number accurate to 7 significant digits
                        scorray[Convert.ToInt32(words[2]), (int)SCORMField.result] = pair.Value;
                        break;


                }

            }
        }

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Amandeep Singh BhullarCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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