public QueryType()
{
this.subqueryField = new subquery();
this.actionsField = new List<action>();
this.pagingField = new paging();
this.fieldsField = new List<field>();
this.parametersField = new parameters();
this.commandField = new command();
}
public static bool LoadFromFile(string fileName, out paging obj)
{
System.Exception exception = null;
return LoadFromFile(fileName, out obj, out exception);
}
/// <summary>
/// Deserializes xml markup from file into an paging object
/// </summary>
/// <param name="fileName">string xml file to load and deserialize</param>
/// <param name="obj">Output paging object</param>
/// <param name="exception">output Exception value if deserialize failed</param>
/// <returns>true if this XmlSerializer can deserialize the object; otherwise, false</returns>
public static bool LoadFromFile(string fileName, out paging obj, out System.Exception exception)
{
exception = null;
obj = default(paging);
try {
obj = LoadFromFile(fileName);
return true;
}
catch (System.Exception ex) {
exception = ex;
return false;
}
}
public static bool Deserialize(string xml, out paging obj)
{
System.Exception exception = null;
return Deserialize(xml, out obj, out exception);
}
/// <summary>
/// Deserializes workflow markup into an paging object
/// </summary>
/// <param name="xml">string workflow markup to deserialize</param>
/// <param name="obj">Output paging object</param>
/// <param name="exception">output Exception value if deserialize failed</param>
/// <returns>true if this XmlSerializer can deserialize the object; otherwise, false</returns>
public static bool Deserialize(string xml, out paging obj, out System.Exception exception)
{
exception = null;
obj = default(paging);
try {
obj = Deserialize(xml);
return true;
}
catch (System.Exception ex) {
exception = ex;
return false;
}
}
private void readerToResult(SqlDataReader reader, Object Result, List <ProjectFlx.Schema.field> Fields, ProjectFlx.Schema.paging Paging)
{
int currentpage = Paging.pages.current == 0 ? 1 : Paging.pages.current;
// TODO: fill available pages to dropdown
switch (Paging.direction)
{
case ProjectFlx.Schema.pagingDirectionType.next:
currentpage++;
break;
case ProjectFlx.Schema.pagingDirectionType.previous:
currentpage--;
break;
case ProjectFlx.Schema.pagingDirectionType.top:
currentpage = 1;
break;
case ProjectFlx.Schema.pagingDirectionType.last:
currentpage = 99; // TODO: last page
break;
}
if (currentpage < 1)
{
currentpage = 1;
}
Paging.pages.current = currentpage;
int resultfrom = ((currentpage * Paging.limit) - Paging.limit) + 1;
int resultto = resultfrom + Paging.limit;
// keep copy of previous page results incase resultsfrom exceeds total pages
// return last know page
ProjectFlx.Schema.result prevresult = new ProjectFlx.Schema.result();
int readercount = 0;
while (reader.Read())
{
// enforce paging results
readercount++;
if ((readercount >= resultfrom && readercount < (resultto)) || Paging.limit.Equals(-1))
{
ProjectFlx.Schema.row r;
if (Result.GetType().Equals(typeof(ProjectFlx.Schema.subresult)))
{
((ProjectFlx.Schema.subresult)Result).row.Add(r = new ProjectFlx.Schema.row());
}
else
{
((ProjectFlx.Schema.result)Result).row.Add(r = new ProjectFlx.Schema.row());
}
XmlDocument xm = new XmlDocument();
List <XmlElement> innerNodes = new List <XmlElement>();
// empty fieldset by default grab all
if (Fields.Count == 0)
{
for (int fld = 0; fld < reader.FieldCount; fld++)
{
string fname = String.Format("field_{0:d3}", fld);
XmlAttribute att = xm.CreateAttribute(fname);
att.Value = reader[fld].ToString();
r.AnyAttr.Add(att);
}
}
foreach (ProjectFlx.Schema.field f in Fields)
{
XmlAttribute att = xm.CreateAttribute(f.name);
if (f.type == Schema.fieldType.json || f.type == Schema.fieldType.tryjson)
{
string json = reader[f.name].ToString().TrimEnd();
try
{
if (String.IsNullOrEmpty(json))
{
json = "{}";
}
else
{
Newtonsoft.Json.Linq.JObject.Parse(json);
}
string jsonDetails = String.Format("{{\"{0}\":{1}}}", f.name, json);
var innerXml = Newtonsoft.Json.JsonConvert.DeserializeXmlNode(jsonDetails);
innerNodes.Add((XmlElement)innerXml.DocumentElement);
}
catch
{
if (f.type == Schema.fieldType.tryjson)
{
json = reader[f.name].ToString().TrimEnd();
}
else
{
json = "{\"error\":\"" + "Invalid Json Object field: " + f.name + "\"}";
}
}
att.Value = json;
}
else
{
try
{
string val = null;
if (f.encode.HasValue())
{
val = reader[f.encode].ToString();
val = System.Web.HttpUtility.UrlEncode(val.TrimEnd()).Replace("+", "%20");
}
else if (f.regx_field.HasValue())
{
val = reader[f.regx_field].ToString();
val = Regex.Replace(val, Schema.Helper.FlattenList(f.regx), f.regx_replace);
}
else
{
val = reader[f.name].ToString();
}
if (val != null)
{
att.Value = safeXmlCharacters(val);
}
}
catch (IndexOutOfRangeException handled)
{
att.Value = "-field not found-";
}
}
r.AnyAttr.Add(att);
}
// append inner nodes (usually from json field conversion)
for (int i = 0; i < innerNodes.Count; i++)
{
r.Any.Add(innerNodes[i]);
}
}
// save previous page results incase resultfrom > readercount, then return last page results
int prevresultfrom = resultfrom - Paging.limit;
int prevresultto = resultto - Paging.limit;
if (prevresultfrom > 0)
{
if ((readercount >= prevresultfrom && readercount < (prevresultto)) && Paging.limit > 0)
{
ProjectFlx.Schema.row r;
prevresult.row.Add(r = new ProjectFlx.Schema.row());
XmlDocument xm = new XmlDocument();
foreach (ProjectFlx.Schema.field f in Fields)
{
XmlAttribute att = xm.CreateAttribute(f.name);
if (f.encode != null)
{
att.Value = System.Web.HttpUtility.UrlEncode(reader[f.encode].ToString().TrimEnd());
}
else
{
att.Value = reader[f.name].ToString().TrimEnd();
}
r.AnyAttr.Add(att);
}
}
}
}
// check to see if we are trying to read records beyond recordset and
// return last page results if we are
if (resultfrom > readercount && Paging.limit != -1)
{
currentpage--;
if (currentpage > 0)
{
Paging.pages.current = currentpage;
}
// copy previous results to Result
ProjectFlx.Schema.row r;
foreach (ProjectFlx.Schema.row r2 in prevresult.row)
{
if (Result.GetType().Equals(typeof(ProjectFlx.Schema.subresult)))
{
((ProjectFlx.Schema.subresult)Result).row.Add(r = new ProjectFlx.Schema.row());
}
else
{
((ProjectFlx.Schema.result)Result).row.Add(r = new ProjectFlx.Schema.row());
}
foreach (XmlAttribute att in r2.AnyAttr)
{
r.AnyAttr.Add(att);
}
}
}
// get pages available for reader
int pagescount = (readercount / Paging.limit) + 1;
Paging.pages.totalpages = pagescount;
Paging.pages.totalrecords = readercount;
for (int x = 1; x <= pagescount; x++)
{
ProjectFlx.Schema.page pg = new ProjectFlx.Schema.page();
pg.value = x;
pg.from = ((Paging.limit * x) - Paging.limit) + 1;
// upper limit page to value is difference of total reader count
if (x.Equals(pagescount))
{
pg.to = readercount;
}
else
{
pg.to = (Paging.limit * x);
}
Paging.pages.page.Add(pg);
}
}