/// <summary>
/// public constructor - picker value is calculated from lookup, either the published value from cache, or the latest saved db value
/// </summary>
/// <param name="contextId">the id of the content, media or member</param>
/// <param name="propertyAlias">the property alias</param>
/// <param name="usePublishedValue">when true uses the published value, otherwise when false uses the lastest saved value (which may also be the published value)</param>
public Picker(int contextId, string propertyAlias, bool usePublishedValue = true)
{
bool success = false;
var publishedContent = new UmbracoHelper(UmbracoContext.Current).GetPublishedContent(contextId);
if (usePublishedValue && publishedContent != null)
{
var property = publishedContent.GetProperty(propertyAlias);
if (property != null)
{
var propertyType = publishedContent.ContentType.PropertyTypes.Single(x => x.PropertyTypeAlias == property.PropertyTypeAlias);
this.ContextId = publishedContent.Id;
this.ParentId = (publishedContent.Parent != null) ? publishedContent.Parent.Id : -1;
this.PropertyAlias = propertyAlias;
this.DataTypeId = propertyType.DataTypeId;
this.PropertyEditorAlias = propertyType.PropertyEditorAlias;
this.SavedValue = property.Value;
success = true;
}
}
else // use unpublished data
{
var content = ApplicationContext.Current.Services.ContentService.GetById(contextId);
if (content != null)
{
var property = content.Properties.SingleOrDefault(x => x.Alias == propertyAlias);
if (property != null)
{
var propertyType = content.PropertyTypes.Single(x => x.Alias == property.Alias);
this.ContextId = content.Id;
this.ParentId = content.ParentId;
this.PropertyAlias = propertyAlias;
this.DataTypeId = propertyType.DataTypeDefinitionId;
this.PropertyEditorAlias = propertyType.PropertyEditorAlias;
this.SavedValue = content.GetValue(PropertyAlias);
success = true;
}
}
}
if (!success)
{
throw new Exception(string.Format("Unable to create Picker object for ContextId: {0}, PropertyAlias: {1}", contextId.ToString(), propertyAlias));
}
}
