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Extract JSON data from SQL result

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  • Extract JSON data from SQL result

    I'm using the SQL Genie "Query a SQL Database to get JSON data" in a UX component.

    Code:
    'DIM a SQL arguments object
    dim args as sql::arguments
    args.add("footer1",convert_type("1","Numeric"))
    args.add("footer2",convert_type("2","Numeric"))
    args.add("footer3",convert_type("3","Numeric"))
    args.add("footer4",convert_type("4","Numeric"))
    
    
    'DIM an Xbasic AlphaDAO connection object
    dim cn as sql::connection
    dim flag as l
    ''open the connection object to connect to the Database
    flag = cn.open("::Name::SQL")
    dim sql as c
    sql = "SELECT Footer, FooterText, FooterHeader FROM Footer_Data"
    'turn portable SQL on. (for more information on portable sql search in help (https://www.alphasoftware.com/documentation)
    'execute the SQL - pass in the sql::arguments object
    flag = cn.execute(sql,args)
    if flag = .f. then
    'an error occurred - get the error message from cn.callresult.text
    'report the error, close the database and then end the script
    dim errortext as c
    errortext = cn.callresult.text
    cn.close()
    end if
    'DIM a SQL::Resultset object
    dim rs as sql::resultset
    rs = cn.resultset
    'get the JSON from the query
    dim json as c
    json = rs.toJSON()
    'Clean up by freeing the resultset and then closing the database
    cn.freeresult()
    cn.close()

    The result is this

    Code:
    [
    {
    "Footer": "1",
    "FooterText": "<img src=\"recycleonly.png\">&nbsp;<font size=\"4\"><b>ABOUT US</b></font><br><div><br></div><div>Fosters is a huge thrift store where all profits benefit foster children. 24,000 sq/ft of clothing, toys, household decor, electronics, new mattresses, furniture, shoes, purses, holiday decor, and so much more! Shop where it matters.</div><div><br></div><div><a href=\"/\"><font color=\"#ffa200\" size=\"3\">Home</font></a></div><div><a href=\"productlist.a5w\"><font color=\"#ffa200\" size=\"3\">Products</font></a></div><div><a href=\"cart.a5w\"><font color=\"#ffa200\" size=\"3\">Cart</font></a></div><div><a href=\"contactus.a5w\"><font color=\"#ffa200\" size=\"3\">Contact Us</font></a></div><div><a href=\"aboutus.a5w\"><font color=\"#ffa200\" size=\"3\">About Us</font></a></div><div><a href=\"news.a5w\"><font color=\"#ffa200\" size=\"3\">News</font></a></div><div><a href=\"donate.a5w\"><font color=\"#ffa200\" size=\"3\">Donate</font></a></div><div><a href=\"fosterfaq.a5w\"><font color=\"#ffa200\" size=\"3\">Foster Parent FAQ's</font></a></div><div><a href=\"rewards.a5w\"><font color=\"#ffa200\" size=\"3\">Fosters Rewards</font></a></div>",
    "FooterHeader": "<img src=\"recycleonly.png\"> ABOUT US"
    },
    {
    "Footer": "2",
    "FooterText": "<img src=\"recycleonly.png\">&nbsp;<font size=\"4\"><b>FIND US</b></font><br><div><br></div><div>Fosters reStore<br>2000 Lathrop Ave<br>Racine, WI 53405<br>(262) 333-8414<br><a href=\"mailto:info@fostersrestore.com\"><font color=\"#ffa200\">info@fostersrestore.com</font></a></div><div><br></div><div><a href=\"privacypolicy.a5w\"><font color=\"#ffa200\">Privacy Policy</font></a><br><a href=\"termsandconditions.a5w\"><font color=\"#ffa200\">Terms And Conditions</font></a></div>",
    "FooterHeader": "Find Us"
    },
    {
    "Footer": "3",
    "FooterText": "<img src=\"recycleonly.png\">&nbsp;<font size=\"4\"><b>STORE HOURS</b></font><br><div><br></div><div>Sunday - 11am to 5pm<br> Monday - 10am to 6pm<br>Tuesday - 10am to 6pm<br> Wednesday - 10am to 6pm<br>Thursday - 10am to 6pm<br>Friday - 10am to 6pm<br>Saturday - 10am to 6pm</div>\r\n<br><br>\r\n<img src=\"recycleonly.png\">&nbsp;<font size=\"4\"><b>DONATION DROP-OFF HOURS</b></font><br><div><br></div><div>Sunday - 11am to 3pm<br>Monday - 10am to 4pm<br>Tuesday - 10am to 4pm<br>Wednesday - 10am to 4pm<br>Thursday - 10am to 4pm<br>Friday - 10am to 4pm<br>Saturday - 10am to 4pm<br><em><strong><font color=\"#ffa000\">All donation days are subject to weather. Rain cancels dropoff days.</font></strong></em></div>",
    "FooterHeader": "Store Hours"
    },
    {
    "Footer": "4",
    "FooterText": "<img src=\"recycleonly.png\">&nbsp;<font size=\"4\"><b>COVID-19 INFO</b></font><br><div><br></div><div>Our store is currently open 7 days a week. Please adhere to all social distancing and masking guidelines posted at the entrance.</div><div><br></div><div><br></div>\r\n\r\n<a style=\"background: #41a2d8 url(https://d1iczxrky3cnb2.cloudfront.net/red_logo.png) no-repeat 56px;color: #fff;text-decoration: none;font-family: Verdana,sans-serif;display: inline-block;font-size: 16px;padding: 17px 60px;padding-left: 94px;-webkit-border-radius: 2px;-moz-border-radius: 2px;border-radius: 2px;box-shadow: 0 2px 0 0 #1f5a89;text-shadow: 0 1px rgba(0, 0, 0, 0.3);\" href=\"https://donorbox.org/new-year-operating-budget?default_interval=o\">Donate</a><div><br><div><br></div><div>Foster Parents, please visit the <a href=\"fosterparentfaq.a5w\"><font color=\"#ffa200\">Foster Parent FAQ</font></a> page for instructions on how to shop during the COVID era.</div></div>",
    "FooterHeader": "COVID-19 INFO"
    }
    ]
    What would I add to the SQL generated to extract the results? (ignore the arguments. They're irrelevant here.) The SQL is returning 4 records. I want to extract the "FooterText" and insert it into a text field on the UX component.

    I know how to set it if I use the arguments to filter the results, but I don't want to keep returning to the database for each record. I want to get all 4 at the same time and then set the fields in the UX.

  • #2
    Instead of converting the SQL to JSON, why don't you just use the data from the SQL result set, step through the four records, and set the values in the fields?
    In pseudo-code, it would be:
    • get the value of FooterText from record 1, put that into a variable
    • get the next record
    • repeat 1st step
    • loop through all four records
    • Create javascript to populate the four text fields on the UX.

    It would be something like this (replacing everything in your Xbasic from rs = cn.resultSet
    rs = cn.resultSet
    DIM FooterText1 AS C
    DIM FooterText2 AS C
    DIM FooterText3 AS C
    DIM FooterText4 AS C
    FooterText1 = rs.data('FooterText')
    rs.NextRow()
    FooterText2 = rs.data('FooterText')
    rs.NextRow()
    FooterText3 = rs.data('FooterText')
    rs.NextRow()
    FooterText4 = rs.data('FooterText')

    cn.freeresult()
    cn.close()

    DIM js AS C = ""
    js = js + "{dialog.object}.setValue('FooterTextField1','" + FooterText1 + "'};"
    js = js + "{dialog.object}.setValue('FooterTextField2','" + FooterText2 + "'};"
    js = js + "{dialog.object}.setValue('FooterTextField3','" + FooterText3 + "'};"
    js = js + "{dialog.object}.setValue('FooterTextField4','" + FooterText4 + "'};"

    MyFunctionName = js
    end function
    This script could be more efficient, but I would start with this to try and get it working, then tweak as desired/necessary.
    Hope this helps.

    Jay



    Jay Talbott
    Lexington, KY

    Comment


    • #3
      *facepalm* on the rs.NextRow() command. I was killing myself trying to figure out how to get the next record. I will give this a try. Thanks, Jay!

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