636 lines
22 KiB
Plaintext
636 lines
22 KiB
Plaintext
<#@ template language="C#" debug="false" hostspecific="true"#>
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<#@ include file="EF6.Utility.CS.ttinclude"#><#@
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output extension=".cs"#><#
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const string inputFile = @"ModelPurchase.edmx";
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var textTransform = DynamicTextTransformation.Create(this);
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var code = new CodeGenerationTools(this);
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var ef = new MetadataTools(this);
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var typeMapper = new TypeMapper(code, ef, textTransform.Errors);
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var loader = new EdmMetadataLoader(textTransform.Host, textTransform.Errors);
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var itemCollection = loader.CreateEdmItemCollection(inputFile);
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var modelNamespace = loader.GetModelNamespace(inputFile);
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var codeStringGenerator = new CodeStringGenerator(code, typeMapper, ef);
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var container = itemCollection.OfType<EntityContainer>().FirstOrDefault();
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if (container == null)
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{
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return string.Empty;
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}
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#>
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//------------------------------------------------------------------------------
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// <auto-generated>
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// <#=CodeGenerationTools.GetResourceString("Template_GeneratedCodeCommentLine1")#>
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//
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// <#=CodeGenerationTools.GetResourceString("Template_GeneratedCodeCommentLine2")#>
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// <#=CodeGenerationTools.GetResourceString("Template_GeneratedCodeCommentLine3")#>
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// </auto-generated>
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//------------------------------------------------------------------------------
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<#
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var codeNamespace = code.VsNamespaceSuggestion();
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if (!String.IsNullOrEmpty(codeNamespace))
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{
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#>
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namespace <#=code.EscapeNamespace(codeNamespace)#>
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{
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<#
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PushIndent(" ");
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}
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#>
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using System;
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using System.Data.Entity;
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using System.Data.Entity.Infrastructure;
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<#
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if (container.FunctionImports.Any())
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{
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#>
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using System.Data.Entity.Core.Objects;
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using System.Linq;
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<#
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}
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#>
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<#=Accessibility.ForType(container)#> partial class <#=code.Escape(container)#> : DbContext
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{
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public <#=code.Escape(container)#>()
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: base("name=<#=container.Name#>")
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{
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<#
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if (!loader.IsLazyLoadingEnabled(container))
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{
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#>
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this.Configuration.LazyLoadingEnabled = false;
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<#
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}
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foreach (var entitySet in container.BaseEntitySets.OfType<EntitySet>())
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{
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// Note: the DbSet members are defined below such that the getter and
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// setter always have the same accessibility as the DbSet definition
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if (Accessibility.ForReadOnlyProperty(entitySet) != "public")
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{
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#>
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<#=codeStringGenerator.DbSetInitializer(entitySet)#>
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<#
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}
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}
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#>
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}
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protected override void OnModelCreating(DbModelBuilder modelBuilder)
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{
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throw new UnintentionalCodeFirstException();
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}
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<#
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foreach (var entitySet in container.BaseEntitySets.OfType<EntitySet>())
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{
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#>
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<#=codeStringGenerator.DbSet(entitySet)#>
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<#
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}
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foreach (var edmFunction in container.FunctionImports)
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{
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WriteFunctionImport(typeMapper, codeStringGenerator, edmFunction, modelNamespace, includeMergeOption: false);
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}
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#>
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}
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<#
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if (!String.IsNullOrEmpty(codeNamespace))
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{
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PopIndent();
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#>
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}
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<#
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}
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#>
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<#+
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private void WriteFunctionImport(TypeMapper typeMapper, CodeStringGenerator codeStringGenerator, EdmFunction edmFunction, string modelNamespace, bool includeMergeOption)
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{
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if (typeMapper.IsComposable(edmFunction))
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{
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#>
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[DbFunction("<#=edmFunction.NamespaceName#>", "<#=edmFunction.Name#>")]
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<#=codeStringGenerator.ComposableFunctionMethod(edmFunction, modelNamespace)#>
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{
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<#+
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codeStringGenerator.WriteFunctionParameters(edmFunction, WriteFunctionParameter);
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#>
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<#=codeStringGenerator.ComposableCreateQuery(edmFunction, modelNamespace)#>
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}
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<#+
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}
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else
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{
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#>
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<#=codeStringGenerator.FunctionMethod(edmFunction, modelNamespace, includeMergeOption)#>
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{
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<#+
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codeStringGenerator.WriteFunctionParameters(edmFunction, WriteFunctionParameter);
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#>
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<#=codeStringGenerator.ExecuteFunction(edmFunction, modelNamespace, includeMergeOption)#>
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}
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<#+
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if (typeMapper.GenerateMergeOptionFunction(edmFunction, includeMergeOption))
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{
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WriteFunctionImport(typeMapper, codeStringGenerator, edmFunction, modelNamespace, includeMergeOption: true);
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}
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}
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}
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public void WriteFunctionParameter(string name, string isNotNull, string notNullInit, string nullInit)
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{
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#>
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var <#=name#> = <#=isNotNull#> ?
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<#=notNullInit#> :
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<#=nullInit#>;
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<#+
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}
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public const string TemplateId = "CSharp_DbContext_Context_EF6";
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public class CodeStringGenerator
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{
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private readonly CodeGenerationTools _code;
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private readonly TypeMapper _typeMapper;
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private readonly MetadataTools _ef;
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public CodeStringGenerator(CodeGenerationTools code, TypeMapper typeMapper, MetadataTools ef)
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{
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ArgumentNotNull(code, "code");
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ArgumentNotNull(typeMapper, "typeMapper");
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ArgumentNotNull(ef, "ef");
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_code = code;
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_typeMapper = typeMapper;
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_ef = ef;
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}
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public string Property(EdmProperty edmProperty)
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{
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} {1} {2} {{ {3}get; {4}set; }}",
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Accessibility.ForProperty(edmProperty),
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_typeMapper.GetTypeName(edmProperty.TypeUsage),
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_code.Escape(edmProperty),
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_code.SpaceAfter(Accessibility.ForGetter(edmProperty)),
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_code.SpaceAfter(Accessibility.ForSetter(edmProperty)));
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}
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public string NavigationProperty(NavigationProperty navProp)
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{
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var endType = _typeMapper.GetTypeName(navProp.ToEndMember.GetEntityType());
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} {1} {2} {{ {3}get; {4}set; }}",
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AccessibilityAndVirtual(Accessibility.ForNavigationProperty(navProp)),
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navProp.ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.Many ? ("ICollection<" + endType + ">") : endType,
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_code.Escape(navProp),
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_code.SpaceAfter(Accessibility.ForGetter(navProp)),
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_code.SpaceAfter(Accessibility.ForSetter(navProp)));
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}
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public string AccessibilityAndVirtual(string accessibility)
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{
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return accessibility + (accessibility != "private" ? " virtual" : "");
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}
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public string EntityClassOpening(EntityType entity)
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{
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} {1}partial class {2}{3}",
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Accessibility.ForType(entity),
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_code.SpaceAfter(_code.AbstractOption(entity)),
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_code.Escape(entity),
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_code.StringBefore(" : ", _typeMapper.GetTypeName(entity.BaseType)));
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}
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public string EnumOpening(SimpleType enumType)
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{
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} enum {1} : {2}",
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Accessibility.ForType(enumType),
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_code.Escape(enumType),
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_code.Escape(_typeMapper.UnderlyingClrType(enumType)));
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}
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public void WriteFunctionParameters(EdmFunction edmFunction, Action<string, string, string, string> writeParameter)
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{
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var parameters = FunctionImportParameter.Create(edmFunction.Parameters, _code, _ef);
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foreach (var parameter in parameters.Where(p => p.NeedsLocalVariable))
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{
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var isNotNull = parameter.IsNullableOfT ? parameter.FunctionParameterName + ".HasValue" : parameter.FunctionParameterName + " != null";
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var notNullInit = "new ObjectParameter(\"" + parameter.EsqlParameterName + "\", " + parameter.FunctionParameterName + ")";
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var nullInit = "new ObjectParameter(\"" + parameter.EsqlParameterName + "\", typeof(" + TypeMapper.FixNamespaces(parameter.RawClrTypeName) + "))";
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writeParameter(parameter.LocalVariableName, isNotNull, notNullInit, nullInit);
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}
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}
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public string ComposableFunctionMethod(EdmFunction edmFunction, string modelNamespace)
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{
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var parameters = _typeMapper.GetParameters(edmFunction);
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} IQueryable<{1}> {2}({3})",
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AccessibilityAndVirtual(Accessibility.ForMethod(edmFunction)),
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_typeMapper.GetTypeName(_typeMapper.GetReturnType(edmFunction), modelNamespace),
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_code.Escape(edmFunction),
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string.Join(", ", parameters.Select(p => TypeMapper.FixNamespaces(p.FunctionParameterType) + " " + p.FunctionParameterName).ToArray()));
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}
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public string ComposableCreateQuery(EdmFunction edmFunction, string modelNamespace)
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{
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var parameters = _typeMapper.GetParameters(edmFunction);
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return string.Format(
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CultureInfo.InvariantCulture,
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"return ((IObjectContextAdapter)this).ObjectContext.CreateQuery<{0}>(\"[{1}].[{2}]({3})\"{4});",
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_typeMapper.GetTypeName(_typeMapper.GetReturnType(edmFunction), modelNamespace),
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edmFunction.NamespaceName,
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edmFunction.Name,
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string.Join(", ", parameters.Select(p => "@" + p.EsqlParameterName).ToArray()),
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_code.StringBefore(", ", string.Join(", ", parameters.Select(p => p.ExecuteParameterName).ToArray())));
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}
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public string FunctionMethod(EdmFunction edmFunction, string modelNamespace, bool includeMergeOption)
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{
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var parameters = _typeMapper.GetParameters(edmFunction);
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var returnType = _typeMapper.GetReturnType(edmFunction);
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var paramList = String.Join(", ", parameters.Select(p => TypeMapper.FixNamespaces(p.FunctionParameterType) + " " + p.FunctionParameterName).ToArray());
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if (includeMergeOption)
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{
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paramList = _code.StringAfter(paramList, ", ") + "MergeOption mergeOption";
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}
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} {1} {2}({3})",
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AccessibilityAndVirtual(Accessibility.ForMethod(edmFunction)),
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returnType == null ? "int" : "ObjectResult<" + _typeMapper.GetTypeName(returnType, modelNamespace) + ">",
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_code.Escape(edmFunction),
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paramList);
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}
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public string ExecuteFunction(EdmFunction edmFunction, string modelNamespace, bool includeMergeOption)
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{
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var parameters = _typeMapper.GetParameters(edmFunction);
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var returnType = _typeMapper.GetReturnType(edmFunction);
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var callParams = _code.StringBefore(", ", String.Join(", ", parameters.Select(p => p.ExecuteParameterName).ToArray()));
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if (includeMergeOption)
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{
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callParams = ", mergeOption" + callParams;
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}
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return string.Format(
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CultureInfo.InvariantCulture,
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"return ((IObjectContextAdapter)this).ObjectContext.ExecuteFunction{0}(\"{1}\"{2});",
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returnType == null ? "" : "<" + _typeMapper.GetTypeName(returnType, modelNamespace) + ">",
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edmFunction.Name,
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callParams);
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}
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public string DbSet(EntitySet entitySet)
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{
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} virtual DbSet<{1}> {2} {{ get; set; }}",
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Accessibility.ForReadOnlyProperty(entitySet),
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_typeMapper.GetTypeName(entitySet.ElementType),
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_code.Escape(entitySet));
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}
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public string DbSetInitializer(EntitySet entitySet)
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{
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} = Set<{1}>();",
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_code.Escape(entitySet),
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_typeMapper.GetTypeName(entitySet.ElementType));
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}
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public string UsingDirectives(bool inHeader, bool includeCollections = true)
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{
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return inHeader == string.IsNullOrEmpty(_code.VsNamespaceSuggestion())
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? string.Format(
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CultureInfo.InvariantCulture,
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"{0}using System;{1}" +
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"{2}",
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inHeader ? Environment.NewLine : "",
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includeCollections ? (Environment.NewLine + "using System.Collections.Generic;") : "",
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inHeader ? "" : Environment.NewLine)
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: "";
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}
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}
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public class TypeMapper
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{
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private const string ExternalTypeNameAttributeName = @"http://schemas.microsoft.com/ado/2006/04/codegeneration:ExternalTypeName";
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private readonly System.Collections.IList _errors;
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private readonly CodeGenerationTools _code;
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private readonly MetadataTools _ef;
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public static string FixNamespaces(string typeName)
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{
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return typeName.Replace("System.Data.Spatial.", "System.Data.Entity.Spatial.");
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}
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public TypeMapper(CodeGenerationTools code, MetadataTools ef, System.Collections.IList errors)
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{
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ArgumentNotNull(code, "code");
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ArgumentNotNull(ef, "ef");
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ArgumentNotNull(errors, "errors");
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_code = code;
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_ef = ef;
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_errors = errors;
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}
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public string GetTypeName(TypeUsage typeUsage)
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{
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return typeUsage == null ? null : GetTypeName(typeUsage.EdmType, _ef.IsNullable(typeUsage), modelNamespace: null);
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}
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public string GetTypeName(EdmType edmType)
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{
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return GetTypeName(edmType, isNullable: null, modelNamespace: null);
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}
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public string GetTypeName(TypeUsage typeUsage, string modelNamespace)
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{
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return typeUsage == null ? null : GetTypeName(typeUsage.EdmType, _ef.IsNullable(typeUsage), modelNamespace);
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}
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public string GetTypeName(EdmType edmType, string modelNamespace)
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{
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return GetTypeName(edmType, isNullable: null, modelNamespace: modelNamespace);
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}
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public string GetTypeName(EdmType edmType, bool? isNullable, string modelNamespace)
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{
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if (edmType == null)
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{
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return null;
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}
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var collectionType = edmType as CollectionType;
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if (collectionType != null)
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{
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return String.Format(CultureInfo.InvariantCulture, "ICollection<{0}>", GetTypeName(collectionType.TypeUsage, modelNamespace));
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}
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var typeName = _code.Escape(edmType.MetadataProperties
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.Where(p => p.Name == ExternalTypeNameAttributeName)
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.Select(p => (string)p.Value)
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.FirstOrDefault())
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?? (modelNamespace != null && edmType.NamespaceName != modelNamespace ?
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_code.CreateFullName(_code.EscapeNamespace(edmType.NamespaceName), _code.Escape(edmType)) :
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_code.Escape(edmType));
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if (edmType is StructuralType)
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{
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return typeName;
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}
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if (edmType is SimpleType)
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{
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var clrType = UnderlyingClrType(edmType);
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if (!IsEnumType(edmType))
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{
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typeName = _code.Escape(clrType);
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}
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typeName = FixNamespaces(typeName);
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return clrType.IsValueType && isNullable == true ?
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String.Format(CultureInfo.InvariantCulture, "Nullable<{0}>", typeName) :
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typeName;
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}
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throw new ArgumentException("edmType");
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}
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public Type UnderlyingClrType(EdmType edmType)
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{
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ArgumentNotNull(edmType, "edmType");
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var primitiveType = edmType as PrimitiveType;
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if (primitiveType != null)
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{
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return primitiveType.ClrEquivalentType;
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}
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if (IsEnumType(edmType))
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{
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return GetEnumUnderlyingType(edmType).ClrEquivalentType;
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}
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return typeof(object);
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}
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public object GetEnumMemberValue(MetadataItem enumMember)
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{
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ArgumentNotNull(enumMember, "enumMember");
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var valueProperty = enumMember.GetType().GetProperty("Value");
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return valueProperty == null ? null : valueProperty.GetValue(enumMember, null);
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}
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public string GetEnumMemberName(MetadataItem enumMember)
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{
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ArgumentNotNull(enumMember, "enumMember");
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var nameProperty = enumMember.GetType().GetProperty("Name");
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return nameProperty == null ? null : (string)nameProperty.GetValue(enumMember, null);
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}
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public System.Collections.IEnumerable GetEnumMembers(EdmType enumType)
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{
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ArgumentNotNull(enumType, "enumType");
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var membersProperty = enumType.GetType().GetProperty("Members");
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return membersProperty != null
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? (System.Collections.IEnumerable)membersProperty.GetValue(enumType, null)
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: Enumerable.Empty<MetadataItem>();
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}
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public bool EnumIsFlags(EdmType enumType)
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{
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ArgumentNotNull(enumType, "enumType");
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var isFlagsProperty = enumType.GetType().GetProperty("IsFlags");
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return isFlagsProperty != null && (bool)isFlagsProperty.GetValue(enumType, null);
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}
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public bool IsEnumType(GlobalItem edmType)
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{
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ArgumentNotNull(edmType, "edmType");
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return edmType.GetType().Name == "EnumType";
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}
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public PrimitiveType GetEnumUnderlyingType(EdmType enumType)
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{
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ArgumentNotNull(enumType, "enumType");
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return (PrimitiveType)enumType.GetType().GetProperty("UnderlyingType").GetValue(enumType, null);
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}
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public string CreateLiteral(object value)
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{
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if (value == null || value.GetType() != typeof(TimeSpan))
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{
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return _code.CreateLiteral(value);
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}
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return string.Format(CultureInfo.InvariantCulture, "new TimeSpan({0})", ((TimeSpan)value).Ticks);
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}
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public bool VerifyCaseInsensitiveTypeUniqueness(IEnumerable<string> types, string sourceFile)
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{
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ArgumentNotNull(types, "types");
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ArgumentNotNull(sourceFile, "sourceFile");
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var hash = new HashSet<string>(StringComparer.InvariantCultureIgnoreCase);
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if (types.Any(item => !hash.Add(item)))
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{
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_errors.Add(
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new CompilerError(sourceFile, -1, -1, "6023",
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String.Format(CultureInfo.CurrentCulture, CodeGenerationTools.GetResourceString("Template_CaseInsensitiveTypeConflict"))));
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return false;
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}
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return true;
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}
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public IEnumerable<SimpleType> GetEnumItemsToGenerate(IEnumerable<GlobalItem> itemCollection)
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|
{
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return GetItemsToGenerate<SimpleType>(itemCollection)
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.Where(e => IsEnumType(e));
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|
}
|
|
|
|
public IEnumerable<T> GetItemsToGenerate<T>(IEnumerable<GlobalItem> itemCollection) where T: EdmType
|
|
{
|
|
return itemCollection
|
|
.OfType<T>()
|
|
.Where(i => !i.MetadataProperties.Any(p => p.Name == ExternalTypeNameAttributeName))
|
|
.OrderBy(i => i.Name);
|
|
}
|
|
|
|
public IEnumerable<string> GetAllGlobalItems(IEnumerable<GlobalItem> itemCollection)
|
|
{
|
|
return itemCollection
|
|
.Where(i => i is EntityType || i is ComplexType || i is EntityContainer || IsEnumType(i))
|
|
.Select(g => GetGlobalItemName(g));
|
|
}
|
|
|
|
public string GetGlobalItemName(GlobalItem item)
|
|
{
|
|
if (item is EdmType)
|
|
{
|
|
return ((EdmType)item).Name;
|
|
}
|
|
else
|
|
{
|
|
return ((EntityContainer)item).Name;
|
|
}
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetSimpleProperties(EntityType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is SimpleType && p.DeclaringType == type);
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetSimpleProperties(ComplexType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is SimpleType && p.DeclaringType == type);
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetComplexProperties(EntityType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is ComplexType && p.DeclaringType == type);
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetComplexProperties(ComplexType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is ComplexType && p.DeclaringType == type);
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetPropertiesWithDefaultValues(EntityType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is SimpleType && p.DeclaringType == type && p.DefaultValue != null);
|
|
}
|
|
|
|
public IEnumerable<EdmProperty> GetPropertiesWithDefaultValues(ComplexType type)
|
|
{
|
|
return type.Properties.Where(p => p.TypeUsage.EdmType is SimpleType && p.DeclaringType == type && p.DefaultValue != null);
|
|
}
|
|
|
|
public IEnumerable<NavigationProperty> GetNavigationProperties(EntityType type)
|
|
{
|
|
return type.NavigationProperties.Where(np => np.DeclaringType == type);
|
|
}
|
|
|
|
public IEnumerable<NavigationProperty> GetCollectionNavigationProperties(EntityType type)
|
|
{
|
|
return type.NavigationProperties.Where(np => np.DeclaringType == type && np.ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.Many);
|
|
}
|
|
|
|
public FunctionParameter GetReturnParameter(EdmFunction edmFunction)
|
|
{
|
|
ArgumentNotNull(edmFunction, "edmFunction");
|
|
|
|
var returnParamsProperty = edmFunction.GetType().GetProperty("ReturnParameters");
|
|
return returnParamsProperty == null
|
|
? edmFunction.ReturnParameter
|
|
: ((IEnumerable<FunctionParameter>)returnParamsProperty.GetValue(edmFunction, null)).FirstOrDefault();
|
|
}
|
|
|
|
public bool IsComposable(EdmFunction edmFunction)
|
|
{
|
|
ArgumentNotNull(edmFunction, "edmFunction");
|
|
|
|
var isComposableProperty = edmFunction.GetType().GetProperty("IsComposableAttribute");
|
|
return isComposableProperty != null && (bool)isComposableProperty.GetValue(edmFunction, null);
|
|
}
|
|
|
|
public IEnumerable<FunctionImportParameter> GetParameters(EdmFunction edmFunction)
|
|
{
|
|
return FunctionImportParameter.Create(edmFunction.Parameters, _code, _ef);
|
|
}
|
|
|
|
public TypeUsage GetReturnType(EdmFunction edmFunction)
|
|
{
|
|
var returnParam = GetReturnParameter(edmFunction);
|
|
return returnParam == null ? null : _ef.GetElementType(returnParam.TypeUsage);
|
|
}
|
|
|
|
public bool GenerateMergeOptionFunction(EdmFunction edmFunction, bool includeMergeOption)
|
|
{
|
|
var returnType = GetReturnType(edmFunction);
|
|
return !includeMergeOption && returnType != null && returnType.EdmType.BuiltInTypeKind == BuiltInTypeKind.EntityType;
|
|
}
|
|
}
|
|
|
|
public static void ArgumentNotNull<T>(T arg, string name) where T : class
|
|
{
|
|
if (arg == null)
|
|
{
|
|
throw new ArgumentNullException(name);
|
|
}
|
|
}
|
|
#> |