Question

I am trying to store an entry with the following json String in a database. However, it seems like the format of the json string is not agreeing with the db even though I have read articles saying this should be easy:

I have tried:

function Activity() {
    this.clicks = 100;
    this.activityTypeCode = 3;
}

    var anActivity=new Activity(); 
    var jsonString=JSON.stringify(anActivity);
    database.transaction(function(tx) {
         tx.executeSQL('INSERT INTO MYTABLE(ID, DATA) VALUES (100,'+jsonString+')');  
    }, errorCB, successCB)

;

and I get an error that says error unrecognized token “{“.
when I do console.log(jsonString) I get:

{"clicks":100, "activityTypeCode":3}

Any assistance would be appreciated.

Answer 1

First is to make sure that your json string is correct. You can validate your json string here.

Second debug is you are missing a ‘;’ in your insert statement in executeSQL. The value array is missing as well.

Third debug would be your executeSQL statement. Try this:

    database.transaction(function(tx) 
    {
      tx.executeSQL('INSERT INTO MYTABLE(ID, DATA) VALUES (?,?);', [100, jsonString],                 
        errorCB, successCB);
     }

Have you declared ID as AUTOINCREMENT? You cant assign values to an AUTOINCREMENT column.

Hope this helps.!