protected virtual void GenerateModel(ITable table, FileBuilder fileBuilder)
{
if (!Options.GenerateModels)
{
return;
}
var tableNamespace = TableNamespace(table);
var tableClassName = TableClassName(table);
var modelClassName = ModelClassName(table);
var modelInterfaceName = ModelInterfaceName(table);
var tableClassFullName = TableClassFullName(table);
var tableClass = GenerationContext.FindClass(tableClassName, tableNamespace);
if (!Options.OutputToSingleFile)
{
var filePath = $"{Options.OutputDir}{Path.DirectorySeparatorChar}{modelClassName}.generated.cs";
fileBuilder.Path(filePath);
}
fileBuilder.Namespace(tableNamespace, true, ns =>
{
ns.Class(modelClass =>
{
// set basic info.
modelClass.Partial(true).Name(modelClassName);
if (Options.GenerateModelsInterfaces)
{
modelClass.Inherits(modelInterfaceName);
}
Options?.ModelInheritances.ForEach(mi =>
{
modelClass.Inherits(ReplaceMetas(mi, table));
});
MethodBuilder from = null;
MethodBuilder to = null;
modelClass.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.ReturnType("void")
.Name("From")
.Parameter(p => p.Type(tableClassFullName).Name("entity"));
from = m;
});
modelClass.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.ReturnType("void")
.Name("To")
.Parameter(p => p.Type(tableClassFullName).Name("entity"));
to = m;
});
modelClass.Method(m => m
.Virtual(true)
.ReturnType("System.Type")
.Name("GetContextType")
.RawLine($"return typeof({ContextFullClassName()})")
);
modelClass.Method(m => m
.ReturnType("System.Type")
.Name("GetEntityType")
.RawLine($"return typeof({tableClassFullName})")
);
// set properties.
table.Columns.ForEach(column =>
{
modelClass.Property(columnProperty =>
{
var type = DataTypeResolver.ResolveType(column);
var typeName = type.GetOutputType();
bool isPropertyNullable = column.IsNullable || Options.GenerateModelPropertyAsNullable;
if (type.IsValueType && isPropertyNullable)
{
typeName = $"{typeName}?";
}
columnProperty
.Virtual(true)
.Name(column.Name)
.Type(typeName)
.Meta(column);
from.RawLine($"{column.Name} = entity.{column.Name}");
if (isPropertyNullable && !column.IsNullable)
{
var matchingProp = tableClass.FindByMeta <PropertyBuilder>(column);
var ternary = TernaryBuilder
.Create()
.RawCondition(rc => rc.Condition($"{column.Name} != null"))
.True(RawInlineBuilder.Create($"entity.{column.Name} = ({matchingProp.GetTypeName()}){column.Name}"))
.False(RawInlineBuilder.Create($"entity.{column.Name} = default({matchingProp.GetTypeName()})"));
to.RawLine($"entity.{column.Name} = {ternary.GenerateInline()}");
}
else
{
to.RawLine($"entity.{column.Name} = {column.Name}");
}
});
});
});
});
}
protected virtual void GenerateModel(ITable table)
{
if (!Options.GenerateModels)
{
return;
}
var tableNamespace = TableNamespace(table);
var modelNamespace = ModelNamespace(table);
var tableClassName = TableClassName(table);
var modelClassName = ModelClassName(table);
var tableClassFullName = TableClassFullName(table);
var tableClass = GenerationContext.FindClass(tableClassName, tableNamespace);
var fileBuilder = ResolveModelFileBuilder(table);
fileBuilder.Namespace(modelNamespace, true, ns =>
{
ns.Class(modelClass =>
{
// set basic info.
modelClass.Partial(true).Name(modelClassName);
if (Options.GenerateModelsInterfaces)
{
var modelInterfaceFullName = ModelInterfaceFullName(table);
modelClass.Inherits(modelInterfaceFullName);
}
Options?.ModelInheritances.ForEach(mi =>
{
modelClass.Inherits(ReplaceMetas(mi, table));
});
MethodBuilder from = null;
MethodBuilder to = null;
if (Options.GenerateModelsFromTo)
{
modelClass.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.ReturnType("void")
.Name("From")
.Parameter(p => p.Type(tableClassFullName).Name("entity"));
from = m;
});
modelClass.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.ReturnType("void")
.Name("To")
.Parameter(p => p.Type(tableClassFullName).Name("entity"));
to = m;
});
}
// set properties.
table.Columns.ForEach(column =>
{
modelClass.Property(columnProperty =>
{
var typeName = GetColumnTypeName(column, ShouldGenerateModelPropertyAsNullable(column)); // Options.GenerateModelPropertyAsNullable);
columnProperty
.Virtual(true)
.Name(column.Name)
.Type(typeName)
.Meta(column);
if (Options.GenerateModelsFromTo)
{
from.RawLine($"{column.Name} = entity.{column.Name}");
bool isPropertyNullable = IsModelPropertyNullable(column); // column.IsNullable || ShouldGenerateModelPropertyAsNullable(column);// Options.GenerateModelPropertyAsNullable;
if (isPropertyNullable && !column.IsNullable)
{
var matchingProp = tableClass.FindByMeta <PropertyBuilder>(column);
var ternary = TernaryBuilder
.Create()
.RawCondition(rc => rc.Condition($"{column.Name} != null"))
.True(RawInlineBuilder.Create($"entity.{column.Name} = ({matchingProp.GetTypeName()}){column.Name}"))
.False(RawInlineBuilder.Create($"entity.{column.Name} = default({matchingProp.GetTypeName()})"));
to.RawLine($"entity.{column.Name} = {ternary.GenerateInline()}");
}
else
{
to.RawLine($"entity.{column.Name} = {column.Name}");
}
}
});
});
});
});
}
public void InterceptTable(ITable table)
{
if (!(Generator is IGeneratorUsingGenerationContext) || !(Generator is IGeneratorWithMeta))
{
throw new Exception("Not the kind of generator expected.");
}
var gen = Generator as IGeneratorUsingGenerationContext;
var genMeta = Generator as IGeneratorWithMeta;
var options = Generator.GetOptions();
var ctx = gen.GetGenerationContext();
// model.
var modelClassName = genMeta.ModelClassName(table);
var modelClassNamespace = genMeta.ModelNamespace(table);
var modelFullClassName = genMeta.ModelClassFullName(table);
// poco.
var pocoClassName = genMeta.TableClassName(table);
var pocoClassNamespace = genMeta.TableNamespace(table);
var pocoFullClassName = genMeta.TableClassFullName(table);
// classes
var pocoClass = ctx.FindClass(pocoClassName, pocoClassNamespace);
var path = $"{options.OutputDir}{Path.DirectorySeparatorChar}transformations.generated.cs";
ctx.File(path, fb =>
{
fb.Namespace("Acme.Models", true, ns =>
{
ns.Class($"{table.Name}ModelTransformationService", true, c =>
{
c.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.Name("ToModel")
.ReturnType("void")
.Parameter(p => p.Name("source").Type(pocoFullClassName))
.Parameter(p => p.Name("model").Type(modelFullClassName));
table.Columns.ForEach(column =>
{
m.RawLine($"model.{column.Name} = source.{column.Name}");
});
});
c.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.Virtual(true)
.Name("FromModel")
.ReturnType("void")
.Parameter(p => p.Name("model").Type(modelFullClassName))
.Parameter(p => p.Name("destination").Type(pocoFullClassName));
table.Columns.ForEach(column =>
{
bool isPropertyNullable = genMeta.IsModelPropertyNullable(column);// column.IsNullable || genMeta.ShouldGenerateModelPropertyAsNullable(column);
if (isPropertyNullable && !column.IsNullable)
{
var matchingProp = pocoClass.FindByMeta <PropertyBuilder>(column);
var ternary = TernaryBuilder
.Create()
.RawCondition(rc => rc.Condition($"model.{column.Name} != null"))
.True(RawInlineBuilder.Create(
$"destination.{column.Name} = ({matchingProp.GetTypeName()})model.{column.Name}"))
.False(RawInlineBuilder.Create(
$"destination.{column.Name} = default({matchingProp.GetTypeName()})"));
m.RawLine($"destination.{column.Name} = {ternary.GenerateInline()}");
}
else
{
m.RawLine($"destination.{column.Name} = model.{column.Name}");
}
});
});
});
});
});
}
protected virtual void GenerateModelExtensions(ITable table)
{
if (!Options.GenerateModelExtensions)
{
return;
}
if (!Options.GenerateModelsInterfaces && !Options.GenerateModels)
{
throw new Exception("Impossible to generate model extensions because neither GenerateModels or GenerateModelsInterfaces is activated.");
}
// full paths to model or interface
var modelFullClassName = ModelClassFullName(table);
var modelInterfaceFullName = ModelInterfaceFullName(table);
// poco.
var pocoFullInterfaceName = TableInterfaceFullName(table);
var pocoFullClassName = TableClassFullName(table);
// poco type.
var pocoClassName = TableClassName(table);
var pocoClassNamespace = TableNamespace(table);
var pocoClass = GenerationContext.FindClass(pocoClassName, pocoClassNamespace);
var modelExtensionNamespaceName = ModelExtensionsNamespace(table);
var modelExtensionClassName = ModelExtensionsClassName(table);
var fileBuilder = ResolveModelExtensionFileBuilder(table);
fileBuilder.Namespace(modelExtensionNamespaceName, true, ns =>
{
ns.Class(c =>
{
// set basic info.
c.Partial(true).Static(true).Name(modelExtensionClassName);
var finalEntityType = Options.GenerateInterfaces ? pocoFullInterfaceName : pocoFullClassName;
var finalModelType = Options.GenerateModelsInterfaces ? modelInterfaceFullName : modelFullClassName;
c.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.IsStatic(true)
.Name("ToModel")
.ReturnType("void")
.Parameter(p => p.Name("source").Type($"this {finalEntityType}"))
.Parameter(p => p.Name("model").Type(finalModelType));
table.Columns.ForEach(column =>
{
m.RawLine($"model.{column.Name} = source.{column.Name}");
});
});
c.Method(m =>
{
m
.AccessModifier(AccessModifiers.Public)
.IsStatic(true)
.Name("FromModel")
.ReturnType("void")
.Parameter(p => p.Name("model").Type($"this {finalModelType}"))
.Parameter(p => p.Name("destination").Type(finalEntityType))
.Parameter(p => p.Name("ignorePrimaryKey").Type("bool").DefaultValue("true"))
;
table.Columns.ForEach(column =>
{
var rawLine = "";
bool isPropertyNullable = IsModelPropertyNullable(column); // column.IsNullable || ShouldGenerateModelPropertyAsNullable(column);
if (isPropertyNullable && !column.IsNullable)
{
var matchingProp = pocoClass.FindByMeta <PropertyBuilder>(column);
var ternary = TernaryBuilder
.Create()
.RawCondition(rc => rc.Condition($"model.{column.Name} != null"))
.True(RawInlineBuilder.Create(
$"destination.{column.Name} = ({matchingProp.GetTypeName()})model.{column.Name}"))
.False(RawInlineBuilder.Create(
$"destination.{column.Name} = default({matchingProp.GetTypeName()})"));
rawLine = $"destination.{column.Name} = {ternary.GenerateInline()}";
}
else
{
rawLine = $"destination.{column.Name} = model.{column.Name}";
}
if (column.IsPrimaryKey)
{
m.Add(IfBuilder.Create().RawCondition(rc => rc.Condition($"ignorePrimaryKey != true")).Add(RawLineBuilder.Create(rawLine)));
}
else
{
m.RawLine(rawLine);
}
});
});
});
});
}
