Add patient creation form validation

src/validate_patient.js

@@ -22,12 +22,45 @@ function checkDNI(dni) {
     }
 }
 
-function validateDNI(){
+function validateString(input){
+    if(input == ""){
+        return false;
+    }
+    return true;
+}
+
+
+function validatePatient(){
+    var name = document.forms["create_form"]["nombre"];
+    var last_name = document.forms["create_form"]["apellido"];
     var dni = document.forms["create_form"]["documento_identificativo"];
+    var address = document.forms["create_form"]["direccion"];
+    var country = document.forms["create_form"]["pais"];
+
     if(!checkDNI(dni.value)){
         alert("El DNI/NIE no es correcto");
         return false;
-    } 
-    alert("El DNI/NIE es correcto");
+    }
+
+    if(!validateString(name.value)){
+        alert("Introduce el nombre");
+        return false;
+    }
+
+    if(!validateString(last_name.value)){
+        alert("Introduce el apellido");
+        return false;
+    }
+
+    if(!validateString(address.value)){
+        alert("Introduce la dirección");
+        return false;
+    }
+
+    if(!validateString(country.value)){
+        alert("Introduce el país");
+        return false;
+    }
+    
     return true;
 }