60 lines
2.5 KiB
C#
60 lines
2.5 KiB
C#
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using Umbraco.Core.Models.PublishedContent;
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namespace Umbraco.Core
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{
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/// <summary>
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/// Provides extension methods for <c>IPublishedProperty</c>.
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/// </summary>
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public static class PublishedPropertyExtension
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{
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#region Value
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public static object Value(this IPublishedProperty property, IPublishedValueFallback publishedValueFallback, string culture = null, string segment = null, Fallback fallback = default, object defaultValue = default)
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{
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if (property.HasValue(culture, segment))
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return property.GetValue(culture, segment);
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return publishedValueFallback.TryGetValue(property, culture, segment, fallback, defaultValue, out var value)
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? value
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: property.GetValue(culture, segment); // give converter a chance to return it's own vision of "no value"
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}
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#endregion
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#region Value<T>
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public static T Value<T>(this IPublishedProperty property, IPublishedValueFallback publishedValueFallback, string culture = null, string segment = null, Fallback fallback = default, T defaultValue = default)
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{
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if (property.HasValue(culture, segment))
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{
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// we have a value
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// try to cast or convert it
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var value = property.GetValue(culture, segment);
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if (value is T valueAsT) return valueAsT;
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var valueConverted = value.TryConvertTo<T>();
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if (valueConverted) return valueConverted.Result;
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// cannot cast nor convert the value, nothing we can return but 'default'
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// note: we don't want to fallback in that case - would make little sense
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return default;
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}
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// we don't have a value, try fallback
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if (publishedValueFallback.TryGetValue(property, culture, segment, fallback, defaultValue, out var fallbackValue))
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return fallbackValue;
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// we don't have a value - neither direct nor fallback
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// give a chance to the converter to return something (eg empty enumerable)
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var noValue = property.GetValue(culture, segment);
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if (noValue is T noValueAsT) return noValueAsT;
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var noValueConverted = noValue.TryConvertTo<T>();
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if (noValueConverted) return noValueConverted.Result;
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// cannot cast noValue nor convert it, nothing we can return but 'default'
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return default;
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}
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#endregion
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}
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}
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