public class AccountEditController {
 
 Map<String, Schema.SObjectField> AccountFieldsDescribe = new Map<String, Schema.SObjectField>();
 
 public AccountEditController (){
  
  Schema.DescribeSObjectResult AccountDescribe = Account.SObjectType.getDescribe();
  
  AccountFieldsDescribe = SObjectType.Account.fields.getMap();
 
  accountDescribe();
 }
 
 List<AccountEditableField> listOfFields = new List<AccountEditableField>();
 
 public List<AccountEditableField> getListOfFields(){
  return listOfFields;
 }
 
 public void accountDescribe(){
  
  Set <String> fieldKeys = new Set<String>();
   
  fieldKeys = AccountFieldsDescribe.keySet();
  
  List <String> editableFieldKeys =  new List<String>();
  
  String queryFields = '';
  
  for(String elem:fieldKeys){
   // Get the fields
   Schema.DescribeFieldResult field = (AccountFieldsDescribe.get(elem)).getDescribe();
    
   // Check if the fields can be viewed and updated.
   if(field.isAccessible() && field.isUpdateable()){
    // Add it to the list of editable field names, And build the list of fields to the dynamic query..
    editableFieldKeys.add(elem);
    queryFields += field.getSObjectField()+', ';    
   }    
      
  }
   
  queryFields = queryFields.substring(0,queryFields.length() - 2);
    
  // The dynamic query: 
  String queryString = 'Select '+ queryFields +' from Account where id = \''+System.currentPageReference().getParameters().get('id')+'\' limit 1'; 
  
  // Query for the account
  Account selectedAccount = Database.query(queryString);
  
  // Build the list to generate the form
  for(String f:editableFieldKeys){   
    
   Schema.DescribeFieldResult  sf = (AccountFieldsDescribe.get(f)).getDescribe();       
   AccountEditableField fieldEditable = new AccountEditableField(sf.getController(), selectedAccount);   
   listOfFields.add(fieldEditable);
   System.Debug('///////////////////////////////// ** \n Field Added: '+fieldEditable);
  }
  
 }
 
 public class AccountEditableField {
  
    private Schema.SObjectField fieldName;
    private Account acc;
  
    public AccountEditableField(Schema.SObjectField fieldName, Account sAcc){
        setAcc(sAcc);
        setFieldName(fieldName);         
    }
  
    public void setAcc(Account sAcc){
      this.acc = sAcc;
    }
    
    public Object getSobjfield(){
           
      Object field = this.acc.get(this.fieldName);
      return field;
    }
    
    public void setFieldName(Schema.SObjectField fieldtoset){
     this.fieldName = fieldtoset;
    }
    
 }
 
}