/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the object.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the object, merging duplicates or creating and adding new ones
/// as needed.
/// <para/>
/// The given object must have a <c>IList<Permission></c> property defined on it.
/// If more than one such property exists, the first one will be used.
/// </remarks>
/// <param name="role">The <see cref="PermissionRole"/> associated with that Permission.</param>
/// <param name="obj">
/// The <see cref="RealmObject"/> inheritor whose permissions this
/// <see cref="Permission"/> instance manipulates.
/// </param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the object
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(PermissionRole role, RealmObject obj)
{
var permissionType = typeof(Permission).GetTypeInfo().GetMappedOrOriginalName();
var prop = obj.ObjectSchema.FirstOrDefault(o => o.Type == (PropertyType.Array | PropertyType.Object) && o.ObjectType == permissionType);
if (prop.Name == null)
{
throw new ArgumentException("The given object doesn't have an IList<Permission> property.", nameof(obj));
}
var permissions = obj.GetListValue <Permission>(prop.Name);
return(Get(role, permissions));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the collection.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the object, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="permissions">
/// The collection of permissions to which the new instance will be added.
/// </param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the object
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(string roleName, IList <Permission> permissions)
{
#if PCL
RealmPCLHelpers.ThrowProxyShouldNeverBeUsed();
return(null);
#else
if (!(permissions is RealmList <Permission> realmPermissions))
{
throw new ArgumentException($"{nameof(Get)} may only be called on managed lists.", nameof(permissions));
}
var role = PermissionRole.Get(realmPermissions.Realm, roleName);
return(Get(role, permissions));
#endif
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the collection.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the object, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <param name="role">The <see cref="PermissionRole"/> associated with that Permission.</param>
/// <param name="permissions">
/// The collection of permissions to which the new instance will be added.
/// </param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the object
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(PermissionRole role, IList <Permission> permissions)
{
#if PCL
RealmPCLHelpers.ThrowProxyShouldNeverBeUsed();
return(null);
#else
if (!(permissions is RealmList <Permission> realmList))
{
throw new ArgumentException("Permission.Get may only be called on managed objects.");
}
if (!realmList.Realm.IsInTransaction)
{
throw new ArgumentException("Permissions may only be obtained or created in a write transaction.");
}
Permission result = null;
var filtered = realmList.Where(p => p.Role.Equals(role)).ToArray();
foreach (var permission in filtered)
{
if (result == null)
{
result = permission;
}
else
{
foreach (var propertyToMerge in _propertiesToMerge)
{
MergePermission(result, permission, propertyToMerge);
}
realmList.Remove(permission);
}
}
if (result == null)
{
result = realmList.Realm.Add(new Permission
{
Role = role
});
realmList.Add(result);
}
return(result);
#endif
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the object.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the object, merging duplicates or creating and adding new ones
/// as needed.
/// <para/>
/// The given object must have a <c>IList<Permission></c> property defined on it.
/// If more than one such property exists, the first one will be used.
/// </remarks>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="obj">
/// The <see cref="RealmObject"/> inheritor whose permissions this
/// <see cref="Permission"/> instance manipulates.
/// </param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the object
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(string roleName, RealmObject obj)
{
return(Get(PermissionRole.Get(obj.Realm, roleName), obj));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the class.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the class, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="className">
/// The name of the <see cref="RealmObject"/> subclass whose corresponding class permissions this
/// <see cref="Permission"/> instance manipulates.
/// </param>
/// <param name="realm">The Realm whose class permissions this <see cref="Permission"/> instance manipulates.</param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the class
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(string roleName, string className, Realm realm)
{
return(Get(PermissionRole.Get(realm, roleName), ClassPermission.Get(realm, className).Permissions));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the class.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the class, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <typeparam name="T">
/// The <see cref="RealmObject"/> subclass whose corresponding class permissions this
/// <see cref="Permission"/> instance manipulates.
/// </typeparam>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="realm">The Realm whose class permissions this <see cref="Permission"/> instance manipulates.</param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the class
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get <T>(string roleName, Realm realm) where T : RealmObject
{
return(Get(PermissionRole.Get(realm, roleName), ClassPermission.Get <T>(realm).Permissions));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the Realm.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the Realm, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="realm">The Realm whose permissions this <see cref="Permission"/> instance manipulates.</param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the Realm
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(string roleName, Realm realm)
{
return(Get(PermissionRole.Get(realm, roleName), realm));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the class.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the class, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <typeparam name="T">
/// The <see cref="RealmObject"/> subclass whose corresponding class permissions this
/// <see cref="Permission"/> instance manipulates.
/// </typeparam>
/// <param name="role">The <see cref="PermissionRole"/> associated with that Permission.</param>
/// <param name="realm">The Realm whose class permissions this <see cref="Permission"/> instance manipulates.</param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the class
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get <T>(PermissionRole role, Realm realm) where T : RealmObject
{
return(Get(role, ClassPermission.Get <T>(realm).Permissions));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the Realm.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the Realm, merging duplicates or creating and adding new ones
/// as needed.
/// </remarks>
/// <param name="role">The <see cref="PermissionRole"/> associated with that Permission.</param>
/// <param name="realm">The Realm whose permissions this <see cref="Permission"/> instance manipulates.</param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the Realm
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(PermissionRole role, Realm realm)
{
return(Get(role, RealmPermission.Get(realm).Permissions));
}
/// <summary>
/// Gets or creates a <see cref="Permission"/> instance for the named role
/// on the object.
/// </summary>
/// <remarks>
/// This function should be used in preference to manually querying for the
/// applicable Permission as it ensures that there is exactly one Permission for
/// the given Role on the object, merging duplicates or creating and adding new ones
/// as needed.
/// <para/>
/// The given object must have a <c>IList<Permission></c> property defined on it.
/// If more than one such property exists, the first one will be used.
/// </remarks>
/// <param name="roleName">
/// The name of the <see cref="PermissionRole"/> associated with that Permission. If no such
/// Role exists, it will be created automatically.
/// </param>
/// <param name="obj">
/// The <see cref="RealmObject"/> inheritor whose permissions this
/// <see cref="Permission"/> instance manipulates.
/// </param>
/// <returns>
/// A <see cref="Permission"/> instance that can be used to inspect or modify the object
/// permissions of that <see cref="PermissionRole"/>.
/// </returns>
public static Permission Get(string roleName, RealmObject obj)
{
Argument.NotNull(obj, nameof(obj));
return(Get(PermissionRole.Get(obj.Realm, roleName), obj));
}