Implementing data filter with AJAX

[osprofi]

Hello Ajaxxer

ich created a .json file with data records from which I want to extract data records per user request.
I created 2 ajax components: one for getting user data and one for getting external json data. Now I cannot join both. Can you help me out here ?

- here is the code for the html input form:

- hier ist der HTML FORM Code zu User Input:
  <form id="myform" name="myform" enctype="multipart/form-data" action="register1.php" method="post" onsubmit="AJAXSubmit(this); return false;">
    <label>RS1
    <select name="rs">
      <option value="red" selected>für RW</option> 
      <option value="white">für WW</option>
    </select>    
    </label>
    <label>Region
    <select name="region">
      <option value="region1" selected>REG A</option> 
      <option value="region2">REG A</option>
      <option value="region3">REG A</option>
      <option value="region4">REG A</option>
    </select>    
    </label>
       <input id="bg" type="checkbox" name="bg" value="1"/> <label for="bg">bg</label>
      <input id="submit" type="submit" value="submit">
    </fieldset>
</form>
 

- I use the AJAX Form Submit Framework ::
https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest/Using_XMLHttpRequest

var AJAXSubmit = (function () {
 
  function ajaxSuccess () {
//    var jsonObj = JSON.parse(data_file);
//    document.getElementById("id01").innerHTML = this.responseText;
loadJS(function(response) {
// Do Something with the response e.g.
jsonresponse = JSON.parse(response);
// Assuming json data is wrapped in square brackets as Drew suggests
document.getElementById("id01").innerHTML = jsonresponse;
//console.log(jsonresponse[0].name);
 
});
//  document.getElementById("id01").innerHTML = mydata[0].name;
  }
 
// new  
function loadJS(callback) {
 
var xobj = new XMLHttpRequest();
xobj.overrideMimeType("application/json");
xobj.open('GET', 'grapes1.json', true);
xobj.onreadystatechange = function () {
if (xobj.readyState == 4 && xobj.status == "200") {
callback(xobj.responseText);
}
}
xobj.send(null);
}
 
  function submitData (oData) {
    /* the AJAX request... */
    var oAjaxReq = new XMLHttpRequest();
    oAjaxReq.submittedData = oData;
    oAjaxReq.onload = ajaxSuccess;
    if (oData.technique === 0) {
      /* method is GET */
      oAjaxReq.open("get", oData.receiver.replace(/(?:\?.*)?$/, oData.segments.length > 0 ? "?" + oData.segments.join("&") : ""), true);
      oAjaxReq.send(null);
    } else {
      /* method is POST */
      oAjaxReq.open("post", oData.receiver, true);
      if (oData.technique === 3) {
        /* enctype is multipart/form-data */
        var sBoundary = "---------------------------" + Date.now().toString(16);
        oAjaxReq.setRequestHeader("Content-Type", "multipart\/form-data; boundary=" + sBoundary);
        oAjaxReq.sendAsBinary("--" + sBoundary + "\r\n" + oData.segments.join("--" + sBoundary + "\r\n") + "--" + sBoundary + "--\r\n");
      } else {
        /* enctype is application/x-www-form-urlencoded or text/plain */
        oAjaxReq.setRequestHeader("Content-Type", oData.contentType);
        oAjaxReq.send(oData.segments.join(oData.technique === 2 ? "\r\n" : "&"));
      }
    }
  }
 
  function processStatus (oData) {
    if (oData.status > 0) { return; }
    /* the form is now totally serialized! do something before sending it to the server... */
    /* doSomething(oData); */
    /* console.log("AJAXSubmit - The form is now serialized. Submitting..."); */
    submitData (oData);
  }
 
  function pushSegment (oFREvt) {
    this.owner.segments[this.segmentIdx] += oFREvt.target.result + "\r\n";
    this.owner.status--;
    processStatus(this.owner);
  }
 
  function plainEscape (sText) {
    /* how should I treat a text/plain form encoding? what characters are not allowed? this is what I suppose...: */
    /* "4\3\7 - Einstein said E=mc2" ----> "4\\3\\7\ -\ Einstein\ said\ E\=mc2" */
    return sText.replace(/[\s\=\\]/g, "\\$&");
  }
 
  function SubmitRequest (oTarget) {
    var nFile, sFieldType, oField, oSegmReq, oFile, bIsPost = oTarget.method.toLowerCase() === "post";
    /* console.log("AJAXSubmit - Serializing form..."); */
    this.contentType = bIsPost && oTarget.enctype ? oTarget.enctype : "application\/x-www-form-urlencoded";
    this.technique = bIsPost ? this.contentType === "multipart\/form-data" ? 3 : this.contentType === "text\/plain" ? 2 : 1 : 0;
    this.receiver = oTarget.action;
    this.status = 0;
    this.segments = [];
    var fFilter = this.technique === 2 ? plainEscape : escape;
    for (var nItem = 0; nItem < oTarget.elements.length; nItem++) {
      oField = oTarget.elements[nItem];
      if (!oField.hasAttribute("name")) { continue; }
      sFieldType = oField.nodeName.toUpperCase() === "INPUT" ? oField.getAttribute("type").toUpperCase() : "TEXT";
      if (sFieldType === "FILE" && oField.files.length > 0) {
        if (this.technique === 3) {
          /* enctype is multipart/form-data */
          for (nFile = 0; nFile < oField.files.length; nFile++) {
            oFile = oField.files[nFile];
            oSegmReq = new FileReader();
            /* (custom properties:) */
            oSegmReq.segmentIdx = this.segments.length;
            oSegmReq.owner = this;
            /* (end of custom properties) */
            oSegmReq.onload = pushSegment;
            this.segments.push("Content-Disposition: form-data; name=\"" + oField.name + "\"; filename=\""+ oFile.name + "\"\r\nContent-Type: " + oFile.type + "\r\n\r\n");
            this.status++;
            oSegmReq.readAsBinaryString(oFile);
          }
        } else {
          /* enctype is application/x-www-form-urlencoded or text/plain or method is GET: files will not be sent! */
          for (nFile = 0; nFile < oField.files.length; this.segments.push(fFilter(oField.name) + "=" + fFilter(oField.files[nFile++].name)));
        }
      } else if ((sFieldType !== "RADIO" && sFieldType !== "CHECKBOX") || oField.checked) {
        /* field type is not FILE or is FILE but is empty */
        this.segments.push(
          this.technique === 3 ? /* enctype is multipart/form-data */
            "Content-Disposition: form-data; name=\"" + oField.name + "\"\r\n\r\n" + oField.value + "\r\n"
          : /* enctype is application/x-www-form-urlencoded or text/plain or method is GET */
            fFilter(oField.name) + "=" + fFilter(oField.value)
        );
      }
    }
    processStatus(this);
  }
 
  return function (oFormElement) {
    if (!oFormElement.action) { return; }
    new SubmitRequest(oFormElement);
  };
 
})();
 

Thanks very much for your assistance
Frank

[Dormilich]

Now I cannot join both.

I only see a single AJAX code.

[osprofi]

Hello Dormilich
I put in only the main AJAX function because that is the place where to insert the code; Which other code do you need?
Greetings, Frank

[Dormilich]

you said something about 2 AJAX components, but posted only one.