/// <summary>
/// Clones this instance.
/// </summary>
/// <returns></returns>
public DbFile Clone()
{
DbFile f = new DbFile();
f.Name = this.Name;
f.MimeType = this.MimeType;
f.Data = (byte[])this.Data.Clone();
return f;
}
/// <summary>
/// Handles the request.
/// </summary>
/// <param name="conn">The connection.</param>
/// <exception cref="System.InvalidOperationException">No table name is available. Try setting `TableName'.</exception>
protected void HandleRequest(SqlConnection conn)
{
if (this.TableName == null) {
throw new InvalidOperationException("No table name is available. Try setting `TableName'.");
}
foreach (string key in this.table.Keys) {
Field f = this.table.GetField(key);
f.Value = null;
if (HttpContext.Current.Request.QueryString[key] != null && f.Type != Field.FieldType.File) {
f.Value = HttpContext.Current.Request.QueryString[key];
}
if (HttpContext.Current.Request.Form[key] != null && f.Type != Field.FieldType.File) {
f.Value = HttpContext.Current.Request.Form[key];
}
if (HttpContext.Current.Request.Files[key] != null) {
DbFile file = new DbFile();
file.Name = HttpContext.Current.Request.Files[key].FileName;
file.MimeType = HttpContext.Current.Request.Files[key].ContentType;
using (MemoryStream s = new MemoryStream()) {
int read = 0;
byte[] buffer = new byte[2048];
while ((read = HttpContext.Current.Request.Files[key].InputStream.Read(buffer, 0, 2048)) > 0) {
s.Write(buffer, 0, read);
}
file.Data = s.ToArray();
}
using (MemoryStream s = new MemoryStream()) {
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(s, file);
f.Value = s.ToArray();
}
}
if (f.Type == Field.FieldType.File) {
if (HttpContext.Current.Request.Form[key + "-remove"] != null && HttpContext.Current.Request.Form[key + "-remove"] == "1") {
f.Value = DBNull.Value;
}
}
}
switch (HttpContext.Current.Request.QueryString["action"]) {
case "create":
HttpContext.Current.Response.StatusCode = (this.table.Create(conn)) ? 200 : 500;
HttpContext.Current.Response.End();
break;
case "update":
foreach (string col in this.table.Keys) {
if (this.table.GetField(col).Type == Field.FieldType.File && this.table.GetField(col).Value != null) {
string cache = "CRUDTable_" + this.TableName + "_file_";
foreach (string key in this.table.PrimaryKeys) {
cache += this.table.GetField(key).Value + "_";
}
cache += col;
HttpContext.Current.Cache.Remove(cache);
}
}
HttpContext.Current.Response.StatusCode = (this.table.Update(conn)) ? 200 : 500;
HttpContext.Current.Response.End();
break;
case "delete":
foreach (string col in this.table.Keys) {
if (this.table.GetField(col).Type == Field.FieldType.File) {
string cache = "CRUDTable_" + this.TableName + "_file_";
foreach (string key in this.table.PrimaryKeys) {
cache += this.table.GetField(key).Value + "_";
}
cache += col;
HttpContext.Current.Cache.Remove(cache);
}
}
HttpContext.Current.Response.StatusCode = (this.table.Delete(conn)) ? 200 : 500;
HttpContext.Current.Response.End();
break;
case "file":
if (HttpContext.Current.Request.QueryString["tablecol"] != null) {
string cache = "CRUDTable_" + this.TableName + "_file_";
foreach (string key in this.table.PrimaryKeys) {
cache += this.table.GetField(key).Value + "_";
}
cache += HttpContext.Current.Request.QueryString["tablecol"];
DbFile f = null;
if (f == null) {
this.table.ReadOne(conn);
if (this.table.Count > 0) {
try {
f = this.table[HttpContext.Current.Request.QueryString["tablecol"]].GetDbFile(0);
HttpContext.Current.Cache.Insert(cache, f, null, Cache.NoAbsoluteExpiration, TimeSpan.FromMinutes(10));
} catch {
HttpContext.Current.Response.StatusCode = 500;
}
}
}
if (f != null) {
HttpContext.Current.Response.StatusCode = 200;
HttpContext.Current.Response.ContentType = f.MimeType;
if (f.MimeType.StartsWith("image/") || f.MimeType.StartsWith("text/")) HttpContext.Current.Response.AddHeader("Content-disposition", "inline; filename=" + f.Name);
else HttpContext.Current.Response.AddHeader("Content-disposition", "attachment; filename=" + f.Name);
HttpContext.Current.Response.BinaryWrite(f.Data);
} else {
HttpContext.Current.Response.StatusCode = 404;
}
} else {
HttpContext.Current.Response.StatusCode = 404;
}
HttpContext.Current.Response.End();
break;
}
}
