/// <summary> Constructor for a new instance of the Thematic_Headings_AdminViewer class </summary>
/// <param name="User"> Authenticated user information </param>
/// <param name="Current_Mode"> Mode / navigation information for the current request </param>
/// <param name="Thematic_Headings"> Headings under which all the highlighted collections on the home page are organized </param>
/// <param name="Tracer">Trace object keeps a list of each method executed and important milestones in rendering</param>
/// <remarks> Postback from handling an edit or new thematic heading is handled here in the constructor </remarks>
public Thematic_Headings_AdminViewer(User_Object User,
SobekCM_Navigation_Object Current_Mode,
List <Thematic_Heading> Thematic_Headings,
Custom_Tracer Tracer)
: base(User)
{
Tracer.Add_Trace("Thematic_Headings_AdminViewer.Constructor", String.Empty);
// Get the current list of thematic headings
thematicHeadings = Thematic_Headings;
// Save the mode
currentMode = Current_Mode;
// Set action message to nothing to start
actionMessage = String.Empty;
// If the user cannot edit this, go back
if ((!user.Is_System_Admin) && (!user.Is_Portal_Admin))
{
currentMode.My_Sobek_Type = My_Sobek_Type_Enum.Home;
HttpContext.Current.Response.Redirect(currentMode.Redirect_URL());
}
// Handle any post backs
if (currentMode.isPostBack)
{
try
{
// Pull the standard values from the form
NameValueCollection form = HttpContext.Current.Request.Form;
string save_value = form["admin_heading_tosave"];
string action_value = form["admin_heading_action"];
// Switch, depending on the request
if (action_value != null)
{
switch (action_value.Trim().ToLower())
{
case "edit":
string new_name = form["form_heading_name"];
if (new_name != null)
{
int id = Convert.ToInt32(save_value);
int order = 1 + Thematic_Headings.TakeWhile(thisHeading => thisHeading.ThematicHeadingID != id).Count();
if (SobekCM_Database.Edit_Thematic_Heading(id, order, new_name, Tracer) < 1)
{
actionMessage = "Unable to edit existing thematic heading";
}
else
{
// For thread safety, lock the thematic headings list
lock (Thematic_Headings)
{
// Repopulate the thematic headings list
SobekCM_Database.Populate_Thematic_Headings(Thematic_Headings, Tracer);
}
actionMessage = "Thematic heading edits saved";
}
}
break;
case "delete":
int thematicDeleteId = Convert.ToInt32(save_value);
if (!SobekCM_Database.Delete_Thematic_Heading(thematicDeleteId, Tracer))
{
// Set action message
actionMessage = "Unable to delete existing thematic heading";
}
else
{
// For thread safety, lock the thematic headings list
lock (Thematic_Headings)
{
// Remove this thematic heading from the list
int i = 0;
while (i < Thematic_Headings.Count)
{
if (Thematic_Headings[i].ThematicHeadingID == thematicDeleteId)
{
Thematic_Headings.RemoveAt(i);
}
else
{
i++;
}
}
}
// Set action message
actionMessage = "Thematic heading deleted";
}
break;
case "new":
int new_order = Thematic_Headings.Count + 1;
if (SobekCM_Database.Edit_Thematic_Heading(-1, new_order, save_value, Tracer) < 1)
{
actionMessage = "Unable to save new thematic heading";
}
else
{
// For thread safety, lock the thematic headings list
lock (Thematic_Headings)
{
// Repopulate the thematic headings list
SobekCM_Database.Populate_Thematic_Headings(Thematic_Headings, Tracer);
}
actionMessage = "New thematic heading saved";
}
break;
case "moveup":
string[] moveup_split = save_value.Split(",".ToCharArray());
int moveup_id = Convert.ToInt32(moveup_split[0]);
int moveup_order = Convert.ToInt32(moveup_split[1]);
if (moveup_order > 1)
{
Thematic_Heading themeHeading = Thematic_Headings[moveup_order - 1];
if (themeHeading.ThematicHeadingID == moveup_id)
{
// For thread safety, lock the thematic headings list
lock (Thematic_Headings)
{
// Move this thematic heading up
Thematic_Headings.Remove(themeHeading);
Thematic_Headings.Insert(moveup_order - 2, themeHeading);
int current_order = 1;
foreach (Thematic_Heading thisTheme in Thematic_Headings)
{
SobekCM_Database.Edit_Thematic_Heading(thisTheme.ThematicHeadingID, current_order, thisTheme.ThemeName, Tracer);
current_order++;
}
// Repopulate the thematic headings list
SobekCM_Database.Populate_Thematic_Headings(Thematic_Headings, Tracer);
}
}
}
break;
case "movedown":
string[] movedown_split = save_value.Split(",".ToCharArray());
int movedown_id = Convert.ToInt32(movedown_split[0]);
int movedown_order = Convert.ToInt32(movedown_split[1]);
if (movedown_order < Thematic_Headings.Count)
{
Thematic_Heading themeHeading = Thematic_Headings[movedown_order - 1];
if (themeHeading.ThematicHeadingID == movedown_id)
{
// For thread safety, lock the thematic headings list
lock (Thematic_Headings)
{
// Move this thematic heading down
Thematic_Headings.Remove(themeHeading);
Thematic_Headings.Insert(movedown_order, themeHeading);
int current_order = 1;
foreach (Thematic_Heading thisTheme in Thematic_Headings)
{
SobekCM_Database.Edit_Thematic_Heading(thisTheme.ThematicHeadingID, current_order, thisTheme.ThemeName, Tracer);
current_order++;
}
// Repopulate the thematic headings list
SobekCM_Database.Populate_Thematic_Headings(Thematic_Headings, Tracer);
}
}
}
break;
}
}
}
catch (Exception)
{
actionMessage = "Unknown error caught while handling your reqeust";
}
}
}