public static void LoadInitialIndexes(nHydrateModel modelRoot)
{
//Setup primary keys
foreach (var entity in modelRoot.Entities)
{
if (entity.Indexes.Count(x => x.IndexType == IndexTypeConstants.PrimaryKey) == 0 && entity.PrimaryKeyFields.Count > 0)
{
var newIndex = new Index(entity.Partition);
newIndex.ParentEntityID = entity.Id;
newIndex.IndexType = IndexTypeConstants.PrimaryKey;
newIndex.Clustered = true;
entity.Indexes.Add(newIndex);
foreach (var field in entity.PrimaryKeyFields)
{
var newColumn = new IndexColumn(field.Partition);
newColumn.FieldID = field.Id;
newColumn.IsInternal = true;
newIndex.IndexColumns.Add(newColumn);
}
}
}
var allIndexedField = modelRoot.Entities.SelectMany(x => x.Fields).Where(x => x.IsIndexed && !x.IsPrimaryKey);
var allIndexes = modelRoot.Entities.SelectMany(x => x.Indexes);
foreach (var field in allIndexedField)
{
var index = allIndexes.FirstOrDefault(x =>
x.IndexColumns.Count == 1 &&
x.IndexColumns.First().FieldID == field.Id &&
x.IndexColumns.First().Ascending);
if (index == null)
{
var newIndex = new Index(modelRoot.Partition);
newIndex.ParentEntityID = field.Entity.Id;
newIndex.IndexType = IndexTypeConstants.IsIndexed;
field.Entity.Indexes.Add(newIndex);
var newColumn = new IndexColumn(modelRoot.Partition);
newColumn.FieldID = field.Id;
newColumn.IsInternal = true;
newIndex.IndexColumns.Add(newColumn);
}
}
}
protected override void OnChildConfiguring(Microsoft.VisualStudio.Modeling.Diagrams.ShapeElement child, bool createdDuringViewFixup)
{
base.OnChildConfiguring(child, createdDuringViewFixup);
try
{
if (!this.IsLoading)
{
//Add a default field to entities
if (child.ModelElement is Entity)
{
var item = child.ModelElement as Entity;
var model = item.nHydrateModel;
if (item.Fields.Count == 0)
{
var field = new Field(item.Partition)
{
DataType = DataTypeConstants.Int,
Identity = IdentityTypeConstants.Database,
Name = "ID",
};
item.Fields.Add(field); //Add then set PK so it will trigger index code
field.IsPrimaryKey = true;
}
#region Pasting
//If there are invalid indexes then try to remap them
foreach (var index in item.Indexes.Where(x => x.FieldList.Any(z => z == null)))
{
foreach (var c in index.IndexColumns.Where(x => x.Field == null && x.FieldID != Guid.Empty))
{
var f = model.Entities.SelectMany(x => x.Fields).FirstOrDefault(x => x.Id == c.FieldID);
if (f != null)
{
var f2 = item.Fields.FirstOrDefault(x => x.Name == f.Name);
if (f2 != null)
c.FieldID = f2.Id;
}
}
}
//Add a PK index if not one
if (!item.Indexes.Any(x => x.IndexType == IndexTypeConstants.PrimaryKey) && item.PrimaryKeyFields.Count > 0)
{
var index = new Index(item.Partition) { IndexType = IndexTypeConstants.PrimaryKey };
item.Indexes.Add(index);
var loop = 0;
foreach (var field in item.PrimaryKeyFields)
{
var newIndexColumn = new IndexColumn(item.Partition);
index.IndexColumns.Add(newIndexColumn);
newIndexColumn.FieldID = field.Id;
newIndexColumn.SortOrder = loop;
loop++;
}
}
#endregion
}
else if (child.ModelElement is View)
{
var item = child.ModelElement as View;
//if ((item.nHydrateModel.DiagramVisibility & VisibilityTypeConstants.View) != VisibilityTypeConstants.View)
//{
// if (MessageBox.Show("This type of object cannot be created by dragging onto the diagram because it is not visualized on the diagram. You can change the 'DiagramVisibility' property of the model to visualize it. Otherwise you can only create this object type by using the model tree window.\n\nWould you like to toggle on visualization for this object?", "Information", MessageBoxButtons.YesNo, MessageBoxIcon.Information) != DialogResult.Yes)
// {
// child.Delete();
// return;
// }
// item.nHydrateModel.DiagramVisibility = (item.nHydrateModel.DiagramVisibility | VisibilityTypeConstants.View);
//}
if (item.Fields.Count == 0)
{
var field = new ViewField(item.Partition)
{
DataType = DataTypeConstants.Int,
Name = "Field1",
};
item.Fields.Add(field);
}
}
else if (child.ModelElement is StoredProcedure)
{
var item = child.ModelElement as StoredProcedure;
//if ((item.nHydrateModel.DiagramVisibility & VisibilityTypeConstants.StoredProcedure) != VisibilityTypeConstants.StoredProcedure)
//{
// if (MessageBox.Show("This type of object cannot be created by dragging onto the diagram because it is not visualized on the diagram. You can change the 'DiagramVisibility' property of the model to visualize it. Otherwise you can only create this object type by using the model tree window.\n\nWould you like to toggle on visualization for this object?", "Information", MessageBoxButtons.YesNo, MessageBoxIcon.Information) != DialogResult.Yes)
// {
// child.Delete();
// return;
// }
// item.nHydrateModel.DiagramVisibility = (item.nHydrateModel.DiagramVisibility | VisibilityTypeConstants.StoredProcedure);
//}
if (item.Fields.Count == 0)
{
var field = new StoredProcedureField(item.Partition)
{
DataType = DataTypeConstants.Int,
Name = "Field1",
};
item.Fields.Add(field);
}
if (item.Parameters.Count == 0)
{
var field = new StoredProcedureParameter(item.Partition)
{
DataType = DataTypeConstants.Int,
Name = "Parameter1",
};
item.Parameters.Add(field);
}
}
else if (child.ModelElement is Function)
{
var item = child.ModelElement as Function;
//if ((item.nHydrateModel.DiagramVisibility & VisibilityTypeConstants.Function) != VisibilityTypeConstants.Function)
//{
// if (MessageBox.Show("This type of object cannot be created by dragging onto the diagram because it is not visualized on the diagram. You can change the 'DiagramVisibility' property of the model to visualize it. Otherwise you can only create this object type by using the model tree window.\n\nWould you like to toggle on visualization for this object?", "Information", MessageBoxButtons.YesNo, MessageBoxIcon.Information) != DialogResult.Yes)
// {
// child.Delete();
// return;
// }
// item.nHydrateModel.DiagramVisibility = (item.nHydrateModel.DiagramVisibility | VisibilityTypeConstants.Function);
//}
if (item.Fields.Count == 0)
{
var field = new FunctionField(item.Partition)
{
DataType = DataTypeConstants.Int,
Name = "Field1",
};
item.Fields.Add(field);
}
if (item.Parameters.Count == 0)
{
var field = new FunctionParameter(item.Partition)
{
DataType = DataTypeConstants.Int,
Name = "Parameter1",
};
item.Parameters.Add(field);
}
}
this.OnShapeConfiguring(new ModelElementEventArgs() { Shape = child });
}
}
catch (Exception ex)
{
throw;
}
}
protected override void OnValueChanged(FieldBase element, bool oldValue, bool newValue)
{
base.OnValueChanged(element, oldValue, newValue);
try
{
//Do not process if we are already doing something
//if (element.Store.TransactionManager.CurrentTransaction != null)
//{
// if (element.Store.TransactionManager.CurrentTransaction.HasPendingChanges) return;
//}
if (element.Entity != null && element.Entity.nHydrateModel != null && !element.Entity.nHydrateModel.IsLoading)
{
//Processes Index list
if (element.IsPrimaryKey) //Must use real property since there is logic there
{
//This is a PK so determine if there is a key for this and add this field to a new or the existing index
var existing = element.Entity.Indexes.FirstOrDefault(x => x.IndexType == IndexTypeConstants.PrimaryKey);
if (existing == null)
{
//The PK index does not exist so create one
using (var transaction = element.Store.TransactionManager.BeginTransaction(Guid.NewGuid().ToString()))
{
var newIndex = new Index(element.Partition);
newIndex.ParentEntityID = element.Entity.Id;
newIndex.Clustered = true;
element.Entity.Indexes.Add(newIndex);
var newColumn = new IndexColumn(element.Partition);
newColumn.FieldID = element.Id;
newIndex.IndexColumns.Add(newColumn);
newColumn.IsInternal = true;
newIndex.IndexType = IndexTypeConstants.PrimaryKey; //Do this last
//If use modules then add the PK to all modules that contain this entity
if (element.Entity.nHydrateModel.UseModules)
{
foreach (var module in element.Modules)
{
element.Entity.nHydrateModel.IndexModules.Add(new IndexModule(element.Entity.nHydrateModel.Partition) { IndexID = newIndex.Id, ModuleId = module.Id });
}
}
transaction.Commit();
}
}
else
{
//The PK does exist so add this field to it
using (var transaction = element.Store.TransactionManager.BeginTransaction(Guid.NewGuid().ToString()))
{
if (existing.IndexColumns.Count(x => x.FieldID == element.Id) == 0)
{
existing.IndexType = IndexTypeConstants.User;
var newColumn = new IndexColumn(element.Partition);
newColumn.FieldID = element.Id;
newColumn.IsInternal = true;
existing.IndexColumns.Add(newColumn);
//Just in case there are invalid fields
existing.IndexColumns.Remove(x => x.GetField() == null);
existing.IndexType = IndexTypeConstants.PrimaryKey; //Do this last
transaction.Commit();
}
}
}
//Remove the IsIndex ones if exist
Func<Index, bool> where = x => x.IndexType == IndexTypeConstants.IsIndexed &&
x.IndexColumns.Count == 1 &&
x.IndexColumns.First().FieldID == element.Id &&
x.IndexType == IndexTypeConstants.IsIndexed;
element.Entity.Indexes.Where(where).ToList().ForEach(x => x.IndexType = IndexTypeConstants.User);
element.Entity.Indexes.Remove(where);
}
else //Remove Index
{
var existing = element.Entity.Indexes.FirstOrDefault(x => x.IndexType == IndexTypeConstants.PrimaryKey);
if (existing != null)
{
using (var transaction = element.Store.TransactionManager.BeginTransaction(Guid.NewGuid().ToString()))
{
existing.IndexType = IndexTypeConstants.User;
existing.IndexColumns.Remove(x => x.FieldID == element.Id);
if (element.Entity.Fields.Count(x => x.IsPrimaryKey) == 0) //No more primary keys
element.Entity.Indexes.Remove(existing);
else
existing.IndexType = IndexTypeConstants.PrimaryKey;
//If use modules then add the PK to all modules that contain this entity
if (element.Entity.nHydrateModel.UseModules && existing.FieldList.Count == 0)
{
foreach (var module in element.Modules)
{
element.Entity.nHydrateModel.IndexModules.Remove(x => (x.IndexID == existing.Id) && (x.ModuleId == module.Id));
}
}
transaction.Commit();
}
}
}
}
}
catch (Exception ex)
{
throw;
}
}
protected override void OnValueChanged(FieldBase element, bool oldValue, bool newValue)
{
base.OnValueChanged(element, oldValue, newValue);
try
{
if (element.Entity != null && element.Entity.nHydrateModel != null && !element.Entity.nHydrateModel.IsLoading)
{
//Processes Index list
if (newValue) //element.IsIndexed //Must use real property since there is logic there
{
//Add an Asc single field index
var existing = element.Entity.Indexes.FirstOrDefault(x => x.IndexColumns.Count == 1 && x.IndexColumns.First().FieldID == element.Id && x.IndexColumns.First().Ascending && x.IndexType == IndexTypeConstants.IsIndexed);
if (existing == null)
{
using (var transaction = element.Store.TransactionManager.BeginTransaction(Guid.NewGuid().ToString()))
{
var newIndex = new Index(element.Partition);
newIndex.ParentEntityID = element.Entity.Id;
newIndex.IndexType = IndexTypeConstants.IsIndexed;
newIndex.Clustered = false;
element.Entity.Indexes.Add(newIndex);
var newColumn = new IndexColumn(element.Partition);
newColumn.FieldID = element.Id;
newColumn.IsInternal = true;
newIndex.IndexColumns.Add(newColumn);
transaction.Commit();
}
}
}
else //Remove Index
{
var existingList = element.Entity.Indexes
.Where(x => x.IndexType == IndexTypeConstants.IsIndexed && x.IndexColumns.Count == 1 && x.IndexColumns.First().FieldID == element.Id && x.IndexType == IndexTypeConstants.IsIndexed)
.ToList();
using (var transaction = element.Store.TransactionManager.BeginTransaction(Guid.NewGuid().ToString()))
{
while (existingList.Count > 0)
{
var item = existingList.First();
item.IndexType = IndexTypeConstants.User;
element.Entity.Indexes.Remove(item);
existingList.Remove(item);
}
transaction.Commit();
}
}
}
}
catch (Exception ex)
{
throw;
}
}