Umbraco - GetMediaByPath

gistfile1.cs

/// <summary>
/// Gets the media item by it's file path
/// </summary>
/// <remarks>
/// Example usage: Use in conjunction with HtmlAgilityPack or WYSIWYG.xslt to parse your RTE for Media Images, grab associated
/// properties from the Media node, and render them in your output (think alt tags, captions, etc).
/// TODO: support non "/media" directory, cleanup & further testing
/// </remarks>
/// <param name="mediaPath">Path to the uploaded file in the media directory</param>
/// <returns>Media node which contains the specified file</returns>
public static Media GetMediaByPath(string mediaPath)
{
	// First, try simply searching the XML for this file (quick way)
	// The only case this wouldn't hit is an image inserted in the RTE and resized (renamed to /media/xxxx/filename_YYYxZZZ.jpg - not stored in XML)
	var media = uComponents.Core.uQuery.GetMediaByXPath("//Image [umbracoFile = '" + mediaPath + "']").FirstOrDefault();

	if (media != null) 
		return media;

	// If we didn't find it in the XML, let's check by the PropertyID in the path
	int propertyId = GetMediaPropertyId(mediaPath);

	if (propertyId == 0) 
		return null;

	var property = new Property(propertyId);
	var content = Media.GetContentFromVersion(property.VersionId);
	media = new Media(content.Id);

	if (media.Id > 0) 
		return media;

	return null;
}

private static int GetMediaPropertyId(string mediaPath)
{
	string[] pathParts = mediaPath.Split('/');
	int retVal = 0;

	// note empty [0] so add +1 to count
	if (pathParts.Count() == 3)
	{
		// Media path is in UploadAllowDirectories format (/media/xxxx-file.ext)
		// ... not using UmbracoSettings.UploadAllowDirectories so we can handle situation where setting may have been changed mid-install
		var fileParts = pathParts[2].Split('-');
		int.TryParse(fileParts[0], out retVal);
	}
	else if (pathParts.Count() == 4)
	{
		// Standard media path format /media/xxxx/file.ext
		int.TryParse(pathParts[2], out retVal);
	}

	return retVal;
}