public static void BuildModel(LyniconSystem sys)
{
//if (!Collator.Instance.RepositoryBuilt)
// throw new Exception("In CoreDb.OnModelCreating because there was a use of CoreDb before repository was built");
Debug.WriteLine("Building SummaryDb");
var requiredBaseTypes = ContentTypeHierarchy.AllContentTypes
.Select(ct => Collator.Instance.ContainerType(ct))
.Select(crt => sys.Extender.ExtensionTypes().Contains(crt)
? sys.Extender.Base(crt)
: crt)
.Distinct()
.Where(crt => Repository.Instance.Registered(crt).DataSourceFactory is CoreDataSourceFactory)
.ToList();
var builder = new ModelBuilder(SqlServerConventionSetBuilder.Build());
sys.Extender.BaseTypes.Do(t => builder.Ignore(t));
foreach (var sumsType in sys.Extender.BaseTypes.Where(bt => requiredBaseTypes.Contains(bt)))
{
builder.Entity(sys.Extender.Summarised(sumsType)).ToTable(LinqX.GetTableName(sumsType));
}
SummaryModel = builder.Model;
}
/// <summary>
/// Delete a container from the data source
/// </summary>
/// <param name="o">The container to delete</param>
/// <param name="bypassChecks">Whether to bypass any checks made to stop deletion by a front end user</param>
public void Delete(object o, bool bypassChecks)
{
using (var dataSource = DataSourceFactory.Create(false))
{
var idProp = LinqX.GetIdProp(o.GetType(), this.IdName);
object noId = ReflectionX.GetDefault(idProp.PropertyType);
var eventData = new RepositoryEventData(o, bypassChecks);
var eventResult = EventHub.Instance.ProcessEvent("Repository.Set.Delete", this, eventData);
var itemDel = ((RepositoryEventData)eventResult.Data).Container;
bool wasHandled = ((RepositoryEventData)eventResult.Data).WasHandled;
if (itemDel != null)
{
if (eventResult.EventName.EndsWith("Add"))
{
DoAdd(dataSource, itemDel, idProp, wasHandled);
}
else if (eventResult.EventName.EndsWith("Update") && !wasHandled)
{
dataSource.Update(itemDel);
}
else if (!wasHandled)
{
dataSource.Delete(itemDel);
}
if (!wasHandled)
{
dataSource.SaveChanges();
}
}
var savedEventData = new RepositoryEventData(o, bypassChecks);
EventHub.Instance.ProcessEvent(eventResult.EventName.Replace("Set", "Saved"), this, savedEventData);
}
}
protected static void BuildModel()
{
//if (!Collator.Instance.RepositoryBuilt)
// throw new Exception("In CoreDb.OnModelCreating because there was a use of CoreDb before repository was built");
Debug.WriteLine("Building CoreDb");
var requiredTypes = ContentTypeHierarchy.AllContentTypes
.Select(ct => Collator.Instance.ContainerType(ct))
.Distinct()
.Where(crt => Repository.Instance.Registered(crt).DataSourceFactory is CoreDataSourceFactory)
.ToList();
var builder = new ModelBuilder(SqlServerConventionSetBuilder.Build());
// temp, breaks separability of Lynicon systems
var sys = LyniconSystem.Instance;
foreach (Type baseType in sys.Extender.BaseTypes.Where(t => requiredTypes.Contains(sys.Extender[t])))
{
builder.Entity(sys.Extender[baseType]).ToTable(LinqX.GetTableName(baseType));
}
CoreModel = builder.Model;
}
/// <inheritdoc/>
public override TTarget GetSummary <TTarget>(object item)
{
Type itemType = item.GetType().UnextendedType();
var propertyMap = GetPropertyMap(itemType);
var summTypeAttr = itemType.GetCustomAttribute <SummaryTypeAttribute>();
Type summType = typeof(Summary);
if (summTypeAttr != null)
{
summType = summTypeAttr.SummaryType;
}
TTarget summ = Activator.CreateInstance(summType) as TTarget;
if (summ == null)
{
return(null);
}
//throw new Exception("GetSummary on object with SummaryAttribute indicating class " + summType.FullName + " not assignable to " + typeof(TTarget).FullName);
propertyMap.Do(kvp => summType.GetProperty(kvp.Key).SetValue(summ,
itemType.GetProperty(kvp.Value).GetValue(item)));
var summary = summ as Summary;
summary.Type = itemType;
summary.Url = ContentMap.Instance.GetUrl(item);
summary.Version = System.Versions.GetVersion(item);
summary.UniqueId = LinqX.GetIdProp(item.GetType(), null).GetValue(item);
return(summ);
}
private object GetKeyForCreate(Type oType, object o)
{
var keyInfo = LinqX.GetIdProp(o.GetType(), null);
if (keyInfo.GetCustomAttribute <DatabaseGeneratedAttribute>()?.DatabaseGeneratedOption == DatabaseGeneratedOption.Identity)
{
keyInfo.SetValue(o, Data.ContainsKey(oType) ? Data[oType].Count + 1 : 1);
}
return(keyInfo.GetValue(o));
}
/// <summary>
/// Get fields needed to create a summary type from a record type
/// </summary>
/// <typeparam name="T">the record type</typeparam>
/// <param name="contentType">the content type</param>
/// <param name="summaryType">the summary type</param>
/// <returns>list of fields needed to create summary type</returns>
public virtual List <string> GetFieldsForSummary(Type contentType, Type summaryType)
{
//List<string> summaryProps = summaryType.GetProperties().Select(pi => pi.Name).ToList();
var propertyMap = contentType.GetProperties()
.Select(pi => new {
pi.Name,
SummaryAttribute = pi.GetCustomAttribute <SummaryAttribute>(),
AddressingAttribute = pi.GetCustomAttribute <AddressComponentAttribute>()
})
.Where(pia => (pia.SummaryAttribute != null) || // && summaryProps.Contains(pia.SummaryAttribute.SummaryProperty)
pia.AddressingAttribute != null)
.Select(pia => pia.Name)
.ToList();
propertyMap.Add(LinqX.GetIdProp(contentType, this.IdName).Name);
return(propertyMap);
}
protected override void OnModelCreating(ModelBuilder builder)
{
var requiredTypes = ContentTypeHierarchy.AllContentTypes
.Select(ct => Collator.Instance.ContainerType(ct))
.Distinct()
.Where(crt => Repository.Instance.Registered(crt).DataSourceFactory is CoreDataSourceFactory)
.ToList();
var sys = LyniconSystem.Instance;
foreach (Type baseType in sys.Extender.BaseTypes.Where(t => requiredTypes.Contains(sys.Extender[t])))
{
builder.Entity(sys.Extender[baseType]).ToTable(LinqX.GetTableName(baseType));
}
base.OnModelCreating(builder);
}
/// <summary>
/// Delete a container from the data source
/// </summary>
/// <param name="o">The container to delete</param>
/// <param name="bypassChecks">Whether to bypass any checks made to stop deletion by a front end user</param>
public void Delete(object o, bool bypassChecks)
{
var db = GetDb();
try
{
var idProp = LinqX.GetIdProp(o.GetType(), this.IdName);
object noId = ReflectionX.GetDefault(idProp.PropertyType);
var eventData = new RepositoryEventData(o, bypassChecks);
var eventResult = EventHub.Instance.ProcessEvent("Repository.Set.Delete", this, eventData);
var itemDel = ((RepositoryEventData)eventResult.Data).Container;
bool wasHandled = ((RepositoryEventData)eventResult.Data).WasHandled;
if (itemDel != null)
{
if (eventResult.EventName.EndsWith("Add"))
{
DoAdd(db, itemDel, idProp, wasHandled);
}
else if (eventResult.EventName.EndsWith("Update") && !wasHandled)
{
db.Entry(itemDel).State = EntityState.Modified;
}
else if (!wasHandled)
{
db.Entry(itemDel).State = EntityState.Deleted;
}
if (!wasHandled)
{
db.SaveChanges();
}
}
var savedEventData = new RepositoryEventData(o, bypassChecks);
EventHub.Instance.ProcessEvent(eventResult.EventName.Replace("Set", "Saved"), this, savedEventData);
}
finally
{
EndCallDb(db);
}
}
protected override void OnModelCreating(ModelBuilder builder)
{
Debug.WriteLine("Building SummaryDb");
var sys = LyniconSystem.Instance;
var requiredBaseTypes = ContentTypeHierarchy.AllContentTypes
.Select(ct => Collator.Instance.ContainerType(ct))
.Select(crt => sys.Extender.ExtensionTypes().Contains(crt)
? sys.Extender.Base(crt)
: crt)
.Distinct()
.Where(crt => Repository.Instance.Registered(crt).DataSourceFactory is CoreDataSourceFactory)
.ToList();
sys.Extender.BaseTypes.Do(t => builder.Ignore(t));
foreach (var sumsType in sys.Extender.BaseTypes.Where(bt => requiredBaseTypes.Contains(bt)))
{
builder.Entity(sys.Extender.Summarised(sumsType)).ToTable(LinqX.GetTableName(sumsType));
}
}
/// <summary>
/// Get containers of a specific type by addresses
/// </summary>
/// <typeparam name="T">The type of containers to get</typeparam>
/// <param name="targetType">type of contained items these will produce, can be a summary type</param>
/// <param name="addresses">list of addresses to fetch (ignored if don't have the container type specified)</param>
/// <returns>containers at addresses</returns>
public IEnumerable <T> Get <T>(Type targetType, IEnumerable <Address> addresses) where T : class
{
if (!addresses.Any())
{
yield break;
}
var contentType = addresses.First().Type;
var paths = addresses.Where(
a => typeof(T).IsAssignableFrom(System.Collator.ContainerType(a.Type)) && a.Type == contentType)
.Select(a => a.GetAsContentPath()).ToList();
var pathPiInfo = typeof(T).GetProperties()
.Select(pi => new { pi, a = pi.GetCustomAttribute <AddressComponentAttribute>() })
.FirstOrDefault(pii => pii.a != null && pii.a.UsePath);
var pathSel = LinqX.GetFieldSelector <T>(pathPiInfo.pi.Name);
var repo = Registered(typeof(T));
foreach (var res in repo.Get <T>(targetType, new Type[] { contentType }, iq => iq.WhereIn(pathSel, paths)))
{
yield return(res);
}
}
/// <summary>
/// Delete a container from the data source
/// </summary>
/// <param name="o">The container to delete</param>
/// <param name="bypassChecks">Whether to bypass any checks made to stop deletion by a front end user</param>
public virtual void Delete(object o, bool bypassChecks)
{
using (var dataSource = DataSourceFactory.Create(false))
{
var idProp = LinqX.GetIdProp(o.GetType(), this.IdName);
Dictionary <string, object> options = new Dictionary <string, object> {
{ "bypassChecks", bypassChecks }
};
var eventData = new RepositoryEventData(o, options);
var eventResult = System.Events.ProcessEvent("Repository.Set.Delete", this, eventData);
var itemDel = ((RepositoryEventData)eventResult.Data).Container;
bool wasHandled = ((RepositoryEventData)eventResult.Data).WasHandled;
if (itemDel != null)
{
if (eventResult.EventName.EndsWith("Add"))
{
DoAdd(dataSource, itemDel, idProp, wasHandled);
}
else if (eventResult.EventName.EndsWith("Update") && !wasHandled)
{
dataSource.Update(itemDel);
}
else if (!wasHandled)
{
dataSource.Delete(itemDel);
}
if (!wasHandled)
{
dataSource.SaveChanges();
}
}
var savedEventData = new RepositoryEventData(o, options);
System.Events.ProcessEvent(eventResult.EventName.Replace("Set", "Saved"), this, savedEventData);
}
}
/// <summary>
/// Set (create or update) a list of containers to the data source
/// </summary>
/// <param name="items">The list of containers</param>
/// <param name="setOptions">Options for setting</param>
/// <returns>List of flags for whether the corresponding by position item was created (rather than updated)</returns>
public virtual List <bool> Set(List <object> items, Dictionary <string, object> setOptions)
{
var db = GetDb();
var createds = new List <bool>();
bool?create = setOptions.Get <bool?>("create");
bool bypassChecks = setOptions.Get <bool>("bypassChecks", false);
bool anyUnhandled = false;
try
{
var savedItems = new List <Tuple <object, bool> >();
foreach (object item in items)
{
var idProp = LinqX.GetIdProp(item.GetType(), this.IdName);
bool isAdd;
if (create == null)
{
object noId = ReflectionX.GetDefault(idProp.PropertyType);
isAdd = idProp.GetValue(item).Equals(noId);
}
else
{
isAdd = create.Value;
}
var eventData = new RepositoryEventData(item, bypassChecks);
var eventResult = EventHub.Instance.ProcessEvent("Repository.Set." + (isAdd ? "Add" : "Update"), this, eventData);
var itemSave = ((RepositoryEventData)eventResult.Data).Container;
bool wasHandled = ((RepositoryEventData)eventResult.Data).WasHandled;
if (!wasHandled)
{
anyUnhandled = true;
}
isAdd = eventResult.EventName.EndsWith("Add");
if (isAdd)
{
DoAdd(db, itemSave, idProp, wasHandled);
}
else if (!wasHandled)
{
db.Entry(itemSave).State = EntityState.Modified;
}
savedItems.Add(Tuple.Create(itemSave, isAdd));
createds.Add(isAdd);
}
if (savedItems.Count > 0 && anyUnhandled)
{
db.SaveChanges();
}
foreach (var savedItem in savedItems)
{
var eventData = new RepositoryEventData(savedItem.Item1, bypassChecks);
EventHub.Instance.ProcessEvent("Repository.Saved." + (savedItem.Item2 ? "Add" : "Update"), this, eventData);
}
return(createds);
}
finally
{
EndCallDb(db);
}
}
/// <summary>
/// Get a query to find items by unique id
/// </summary>
/// <typeparam name="T">Type of the content items to get</typeparam>
/// <param name="ids">The list of ids of items to get</param>
/// <returns>A query body</returns>
public Func <IQueryable, IQueryable> GetIdsQuery <T>(IEnumerable <object> ids) where T : class
{
return((Func <IQueryable, IQueryable>)(iq => iq.AsFacade <T>().WhereIn <T>(LinqX.GetIdSelector <T>(), ids)));
}
/// <summary>
/// Get the PropertyInfo of the id for a given type
/// </summary>
/// <param name="t">The type</param>
/// <returns>The PropertyInfo for the id</returns>
public PropertyInfo GetIdProperty(Type t)
{
return(LinqX.GetIdProp(t, this.IdName));
}
private object GetKey(object o)
{
return(LinqX.GetIdProp(o.GetType(), null).GetValue(o));
}
/// <inheritdoc/>
public override PropertyInfo GetIdProperty(Type t)
{
return(LinqX.GetIdProp(t, null));
}
/// <summary>
/// Get a query body which converts the address into a query which should return the item from that address
/// when used as an argument to a Repository method.
/// </summary>
/// <typeparam name="T">Container type query is applied to, which the address addresses</typeparam>
/// <param name="coll">The collator of the data system in which the query body will run</param>
/// <returns>The query body</returns>
public Func <IQueryable <T>, IQueryable <T> > GetAsQueryBody <T>(Collator coll)
{
Func <IQueryable <T>, IQueryable <T> > queryBody = null;
if (this.ContainsKey("_id"))
{
var idProp = coll.GetIdProperty(typeof(T));
return(iq => iq.Where(LinqX.GetPropertyTest <T>(idProp.Name, this["_id"])));
}
Dictionary <string, string> keyProps = typeof(T).GetProperties()
.Select(pi => new { pi, attr = pi.GetCustomAttribute <AddressComponentAttribute>() })
.Where(pii => pii.attr != null)
.ToDictionary(pii => pii.attr.UsePath ? "{Path}" : (pii.attr.RouteKey ?? ("_" + pii.pi.Name)),
pii => pii.pi.Name);
if (keyProps.ContainsKey("{Path}"))
{
queryBody = iq => iq.Where(LinqX.GetPropertyTest <T>(keyProps["{Path}"], GetAsContentPath()));
}
else
{
foreach (string key in keyProps.Keys)
{
string propName = keyProps[key];
object matchVal;
if (this.ContainsKey(key))
{
matchVal = this[key];
}
else
{
// this address doesn't have a value for this address component property so use a default value
Type keyType = typeof(T).GetProperty(propName).PropertyType;
if (keyType.IsValueType())
{
matchVal = Activator.CreateInstance(keyType);
}
else
{
matchVal = null;
}
}
if (queryBody == null)
{
queryBody = iq => iq.Where(LinqX.GetPropertyTest <T>(propName, matchVal));
}
else
{
var innerQueryBody = queryBody;
queryBody = iq => innerQueryBody(iq).Where(LinqX.GetPropertyTest <T>(propName, matchVal));
}
}
if (queryBody == null)
{
queryBody = iq => iq;
}
}
return(queryBody);
}
