I am doing an android application that display list of patients in listview. When i click an item in the list another list will display which is the list prescriptions. my problem is how will i retrieve all list of prescription for that particular patient only.
First, click one of this patient in listview
patient table structure
then go to next listview for prescription
This is my prescription table structure
and i want to display this in listview
this is the relational view for fkey
Here is my Code for lists of Prescriptions.
public class DocListPrescription extends ListActivity {
// Progress Dialog
private ProgressDialog pDialog;
TextView docusername;
Button btndelete;
String uid;
// Creating JSON Parser object
JSONParser2 jParser = new JSONParser2();
ArrayList<HashMap<String, String>> patientsList;
// url to get all products list
// private static String url_all_patients = "http://192.168.43.6/android_connect/get_all_patients.php";
private static String url_all_patients = "http://10.0.2.2/android_connect/get_all_prescriptions.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRESCRIPTION = "prescription";
private static final String TAG_PRES_ID = "pres_id";
private static final String TAG_UID = "uid";
private static final String TAG_NAME = "pres_name";
private static final String TAG_DATE = "date";
private static final String TAG_DOCUSERNAME = "docusername";
private ListView lv1;
// products JSONArray
JSONArray patients = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listpatient);
//docusername = (TextView) findViewById(R.id.docusername);
Intent i = getIntent();
// getting product id (pid) from intent
uid = i.getStringExtra(TAG_UID);
// Hashmap for ListView
patientsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute();
// Get listview
ListView lv = getListView();
// on seleting single product
// launching Edit Product Screen
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String pres_id = ((TextView) view.findViewById(R.id.pres_id)).getText()
.toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(),
AddPrescription.class);
// sending id to next activity
//in.putExtra(TAG_USERNAME,docusername.getText().toString());
in.putExtra(TAG_PRES_ID, pres_id);
// starting new activity and expecting some response back
startActivityForResult(in, 100);
//startActivity(i);
}
});
lv1 = (ListView) findViewById(android.R.id.list);
registerForContextMenu(lv1);
}
/*
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if (v.getId()==R.id.list) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
menu.setHeaderTitle(Countries[info.position]);
String[] menuItems = getResources().getStringArray(R.menu.menu);
for (int i = 0; i<menuItems.length; i++) {
menu.add(Menu.NONE, i, i, menuItems[i]);
}
}
}
*/
@Override
public void onBackPressed() {
super.onBackPressed();
//userFunctions.logoutUser(getApplicationContext());
Intent intent = new Intent(this, DocMenuActivity.class);
intent.putExtra(TAG_DOCUSERNAME,docusername.getText().toString());
// Close all views before launching Dashboard
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
//startActivity(dashboard);
startActivity(intent);
}
// Response from Edit Product Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by making HTTP Request
* */
class LoadAllProducts extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(DocListPrescription.this);
pDialog.setMessage("Loading precriptions. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("uid", uid));
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_patients, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Prescriptions: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
patients = json.getJSONArray(TAG_PRESCRIPTION);
// looping through All Products
for (int i = 0; i < patients.length(); i++) {
JSONObject c = patients.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_PRES_ID);
String details = c.getString(TAG_NAME);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PRES_ID, id);
map.put(TAG_NAME, details);
// adding HashList to ArrayList
patientsList.add(map);
}
} else {
// no products found
// Launch Add New product Activity
Intent i = new Intent(getApplicationContext(),
AddPrescription.class);
// Closing all previous activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
DocListPrescription.this, patientsList,
R.layout.rowprescrip, new String[] { TAG_PRES_ID,
TAG_NAME},
new int[] { R.id.pres_id, R.id.pres_name });
/*
*/
// updating listview
setListAdapter(adapter);
}
});
}
}
}
From this code. I passed the uid of patient from ListofPatients to this activity so that i will get the uid of that particular item(patient).
Here is my PHP to retrieve all prescriptions for that patient
<?php
/*
* Following code will list all the products
*/
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// get all products from products table
$result = mysql_query("SELECT *FROM prescription") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
// looping through all results
// products node
$response["prescription"] = array();
while ($row = mysql_fetch_array($result)) {
// temp user array
$prescription = array();
$prescription["pres_id"] = $row["pres_id"];
$prescription["pres_name"] = $row["pres_name"];
// $prescription["created_at"] = $row["created_at"];
$prescription["date"] = $row["date"];
// push single product into final response array
array_push($response["prescription"], $prescription);
}
// success
$response["success"] = 1;
// echoing JSON response
echo json_encode($response);
} else {
// no products found
$response["success"] = 0;
$response["message"] = "No products found";
// echo no users JSON
echo json_encode($response);
}
?>
From this code. I dont know how to retrieve that prescription using the foreign_key of patient uid. Please help. How can i do this? Thanks in advance. I really need help now.
