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1 using System;
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2 using System.Collections.Generic;
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3 using System.ComponentModel.DataAnnotations;
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4 using System.Linq;
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5 using System.Web.Mvc;
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6
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7 namespace AltNetHispano.Agendas.Web.CustomModelMetadataProvider
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8 {
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9 public class DataAnnotationAndResolveByConventionModelMetadataProvider : DataAnnotationsModelMetadataProvider
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10 {
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11 private readonly IResolverByConvention _resolverByConvention;
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12 private List<Attribute> _attributeList;
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13
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14 public DataAnnotationAndResolveByConventionModelMetadataProvider(IResolverByConvention resolverByConvention)
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15 {
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16 _resolverByConvention = resolverByConvention;
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17 }
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18
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19 protected override ModelMetadata CreateMetadata(IEnumerable<Attribute> attributes, Type containerType, Func<object> modelAccessor, Type modelType, string propertyName)
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20 {
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21 _attributeList = new List<Attribute>(attributes);
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22
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23 var modelMetadata = base.CreateMetadata(attributes, containerType, modelAccessor, modelType, propertyName);
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24
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25 if (propertyName != null)
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26 {
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27 if (string.IsNullOrWhiteSpace(modelMetadata.DisplayName))
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28 modelMetadata.DisplayName = _resolverByConvention.GetDisplayName(propertyName);
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29
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30 if (string.IsNullOrWhiteSpace(modelMetadata.Description))
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31 modelMetadata.Description = _resolverByConvention.GetDescription(propertyName);
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32
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33 var validators = _attributeList.OfType<ValidationAttribute>();
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34 foreach (var validator in validators)
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35 {
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36 if (string.IsNullOrWhiteSpace(validator.ErrorMessage) &&
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37 string.IsNullOrWhiteSpace(validator.ErrorMessageResourceName))
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38 {
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39 var resourceName = propertyName + validator.GetType().Name;
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40 if (resourceName.EndsWith("Attribute"))
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41 resourceName = resourceName.Substring(0, resourceName.Length - 9);
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42 var resourceType = validator.ErrorMessageResourceType ?? _resolverByConvention.ResourceType;
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43 var prop = resourceType.GetProperty(resourceName);
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44 if (prop != null)
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45 {
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46 validator.ErrorMessageResourceType = resourceType;
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47 validator.ErrorMessageResourceName = resourceName;
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48 }
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49 }
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50 }
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51 }
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52
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53 return modelMetadata;
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54 }
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55 }
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56 } |
