/// <summary>
/// Get languages this value is referenced from, but not the language specified. The
/// method helps to find languages the value belongs to expect the current language.
/// </summary>
public static IEnumerable <string> GetLanguagesReferenced(this EavValue value, string valueLanguage, bool referenceReadWrite)
{
return(value.ValuesDimensions.Where(reference => referenceReadWrite ? !reference.ReadOnly : true)
.Where(reference => reference.Dimension.ExternalKey != valueLanguage)
.Select(reference => reference.Dimension.ExternalKey)
.ToList());
}
/// <summary>
/// If the value is a file or page reference, resolve it for example from
/// File:4711 to Content/file4711.jpg. If the reference cannot be reoslved,
/// the original value will be returned.
/// </summary>
public static string ResolveValueReference(this EavValue value)
{
if (value.IsHyperlink())
{
return(ResolveHyperlink(value));
}
return(value.Value);
}
/// <summary>
/// Check if a language reference is read-only.
/// </summary>
public static bool IsLanguageReadOnly(this EavValue value, string language)
{
var languageReference = value.ValuesDimensions.FirstOrDefault(reference => reference.Dimension.ExternalKey == language);
if (languageReference == null)
{
return(false);
}
return(languageReference.ReadOnly);
}
/// <summary>
/// Append an element to this. The element will have the value of the EavValue. File and page references
/// can optionally be resolved.
/// </summary>
public static void AppendValue(this XElement element, XName name, EavValue value, ResourceReferenceExport resourceReferenceOption)
{
if (value == null)
{
element.Append(name, "=default()");
}
else if (resourceReferenceOption.IsResolve())
{
element.Append(name, value.ResolveValueReference());
}
else
{
element.Append(name, value.Value);
}
}
/// <summary>
/// Add a new Value
/// </summary>
internal EavValue AddValue(Entity entity, int attributeId, string value, bool autoSave = true)
{
var changeId = Context.Versioning.GetChangeLogId();
var newValue = new EavValue
{
AttributeID = attributeId,
Entity = entity,
Value = value,
ChangeLogIDCreated = changeId
};
Context.SqlDb.AddToValues(newValue);
if (autoSave)
Context.SqlDb.SaveChanges();
return newValue;
}
private static string ResolveHyperlink(EavValue value)
{
var match = Regex.Match(value.Value, @"(?<type>.+)\:(?<id>\d+)");
if (!match.Success)
{
return(value.Value);
}
var linkId = int.Parse(match.Groups["id"].Value);
var linkType = match.Groups["type"].Value;
if (linkType == "Page")
{
return(ResolvePageLink(linkId, value.Value));
}
else
{
return(ResolveFileLink(linkId, value.Value));
}
}
/// <summary>
/// Append an element to this. The element will have the value of the EavValue. File and page references
/// can optionally be resolved.
/// </summary>
public static void AppendValue(this XElement element, XName name, EavValue value, ResourceReferenceExport resourceReferenceOption)
{
if (value == null)
{
element.Append(name, "[]");
}
else if (value.Value == null)
{
element.Append(name, "[]");
}
else if (resourceReferenceOption.IsResolve())
{
element.Append(name, value.ResolveValueReference());
}
else if (value.Value == string.Empty)
{
element.Append(name, "[\"\"]");
}
else
{
element.Append(name, value.Value);
}
}
/// <summary>
/// Get all languages this value is referenced from.
/// </summary>
public static IEnumerable <string> GetLanguages(this EavValue value)
{
return(value.ValuesDimensions.Select(reference => reference.Dimension.ExternalKey));
}
public static string GetLanguage(this EavValue value, string valueLanguage)
{
return(value.ValuesDimensions.Select(reference => reference.Dimension.ExternalKey)
.FirstOrDefault(language => language == valueLanguage));
}
private static bool IsHyperlink(this EavValue value)
{
return(value.Attribute.Type == "Hyperlink");
}
/// <summary>
/// Update a Value
/// </summary>
internal void UpdateValue(EavValue currentValue, string value, int changeId, bool autoSave = true)
{
// only if value has changed
if (currentValue.Value.Equals(value))
return;
currentValue.Value = value;
currentValue.ChangeLogIDModified = changeId;
currentValue.ChangeLogIDDeleted = null;
if (autoSave)
Context.SqlDb.SaveChanges();
}
