private void GetPosts(XmlTextWriter writer)
{
PostFilter filter = PostFilter.FromQueryString(Request.QueryString);
Query q = filter.ToQuery();
q.AndWhere(Post.Columns.IsDeleted, false);
PostCollection posts = PostCollection.FetchByQuery(q);
writer.WriteStartElement("posts");
writer.WriteAttributeString("pageIndex", q.PageIndex.ToString());
writer.WriteAttributeString("pageSize", q.PageSize.ToString());
writer.WriteAttributeString("totalPosts", q.GetRecordCount().ToString());
foreach (Post post in posts)
{
ConvertPostToXML(post, writer);
}
writer.WriteEndElement();
}
// parse querystring into filter
public static PostFilter FromQueryString(NameValueCollection queryString)
{
PostFilter postFilter = new PostFilter();
string id = queryString[QueryStringKey.Id];
if (!string.IsNullOrEmpty(id))
{
postFilter.Id = Int32.Parse(id);
return(postFilter);
}
// parse and set author filter
string author = queryString[QueryStringKey.Author];
if (!string.IsNullOrEmpty(author))
{
postFilter.Author = author;
}
// parse and set category filter
int categoryId;
string cid = queryString[QueryStringKey.CategoryId];
if ((!string.IsNullOrEmpty(cid)) && (int.TryParse(cid, out categoryId)))
{
postFilter.CategoryId = categoryId;
}
if (postFilter.CategoryId > 0)
{
postFilter.IncludeChildCategories =
Util.AreEqualIgnoreCase(queryString[QueryStringKey.IncludeChildCategories], "true");
}
// parse and set status filter
string s = queryString[QueryStringKey.Status];
if (!string.IsNullOrEmpty(s))
{
PostStatus status = PostStatus.NotSet;
try { status = (PostStatus)Enum.Parse(typeof(PostStatus), s, true); }
catch { }
postFilter.Status = status;
}
// parse and set deleted filter
bool isDeleted = false;
string d = queryString[QueryStringKey.IsDeleted];
if ((!string.IsNullOrEmpty(d)) && (bool.TryParse(d, out isDeleted)))
{
postFilter.IsDeleted = isDeleted ? TrueFalseIgnore.True : TrueFalseIgnore.False;
}
// parse and set page index filter
int pageIndex;
string pi = queryString[QueryStringKey.PageIndex];
if ((!string.IsNullOrEmpty(pi)) && (int.TryParse(pi, out pageIndex)))
{
postFilter.PageIndex = pageIndex;
}
// parse and set page size filter
int pageSize;
string ps = queryString[QueryStringKey.PageSize];
if ((!string.IsNullOrEmpty(ps)) && (int.TryParse(ps, out pageSize)))
{
postFilter.PageSize = pageSize;
}
int parnetId;
string parId = queryString[QueryStringKey.ParentId];
if ((!string.IsNullOrEmpty(parId)) && (int.TryParse(parId, out parnetId)))
{
postFilter.ParentId = parnetId;
}
return(postFilter);
}
// parse querystring into filter
public static PostFilter FromQueryString(NameValueCollection queryString)
{
PostFilter postFilter = new PostFilter();
string id = queryString[QueryStringKey.Id];
if(!string.IsNullOrEmpty(id))
{
postFilter.Id = Int32.Parse(id);
return postFilter;
}
// parse and set author filter
string author = queryString[QueryStringKey.Author];
if (!string.IsNullOrEmpty(author))
postFilter.Author = author;
// parse and set category filter
int categoryId;
string cid = queryString[QueryStringKey.CategoryId];
if ((!string.IsNullOrEmpty(cid)) && (int.TryParse(cid, out categoryId)))
postFilter.CategoryId = categoryId;
if(postFilter.CategoryId > 0)
{
postFilter.IncludeChildCategories =
Util.AreEqualIgnoreCase(queryString[QueryStringKey.IncludeChildCategories], "true");
}
// parse and set status filter
string s = queryString[QueryStringKey.Status];
if (!string.IsNullOrEmpty(s))
{
PostStatus status = PostStatus.NotSet;
try { status = (PostStatus)Enum.Parse(typeof(PostStatus), s, true); }
catch { }
postFilter.Status = status;
}
// parse and set deleted filter
bool isDeleted = false;
string d = queryString[QueryStringKey.IsDeleted];
if ((!string.IsNullOrEmpty(d)) && (bool.TryParse(d, out isDeleted)))
postFilter.IsDeleted = isDeleted ? TrueFalseIgnore.True : TrueFalseIgnore.False;
// parse and set page index filter
int pageIndex;
string pi = queryString[QueryStringKey.PageIndex];
if ((!string.IsNullOrEmpty(pi)) && (int.TryParse(pi, out pageIndex)))
postFilter.PageIndex = pageIndex;
// parse and set page size filter
int pageSize;
string ps = queryString[QueryStringKey.PageSize];
if ((!string.IsNullOrEmpty(ps)) && (int.TryParse(ps, out pageSize)))
postFilter.PageSize = pageSize;
int parnetId;
string parId = queryString[QueryStringKey.ParentId];
if ((!string.IsNullOrEmpty(parId)) && (int.TryParse(parId, out parnetId)))
postFilter.ParentId = parnetId;
return postFilter;
}
