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- 增加 FreeSql.DbContext OnModelCreating 虚方法，实现在 DbContext 使用 FluentApi；#4 - 移除 FreeSql.Extensions.EfCoreFluentApi，功能移至 FreeSql.DbContext；

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28810
2020-04-16 02:58:34 +08:00
parent 43e1529a83
commit 36759402cc
23 changed files with 418 additions and 575 deletions
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58
FreeSql.DbContext/EfCoreFluentApi/EfCoreColumnFluent.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using FreeSql.DataAnnotations;
namespace FreeSql.Extensions.EfCoreFluentApi
{
public class EfCoreColumnFluent
{
ColumnFluent _cf;
internal EfCoreColumnFluent(ColumnFluent tf)
{
_cf = tf;
}
/// <summary>
/// 使用 FreeSql FluentApi 方法，当 EFCore FluentApi 方法无法表示的时候使用
/// </summary>
/// <returns></returns>
public ColumnFluent Help() => _cf;
public EfCoreColumnFluent HasColumnName(string name)
{
_cf.Name(name);
return this;
}
public EfCoreColumnFluent HasColumnType(string dbtype)
{
_cf.DbType(dbtype);
return this;
}
public EfCoreColumnFluent IsRequired()
{
_cf.IsNullable(false);
return this;
}
public EfCoreColumnFluent HasMaxLength(int length)
{
_cf.StringLength(length);
return this;
}
public EfCoreColumnFluent HasDefaultValueSql(string sqlValue)
{
_cf.InsertValueSql(sqlValue);
return this;
}
public EfCoreColumnFluent IsRowVersion()
{
_cf.IsVersion(true);
return this;
}
//public EfCoreColumnFluent HasConversion(Func<object, string> stringify, Func<string, object> parse)
//{
// return this;
//}
}
}

120
FreeSql.DbContext/EfCoreFluentApi/EfCoreFluentApiExtensions.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using FreeSql;
using FreeSql.DataAnnotations;
using FreeSql.Extensions.EfCoreFluentApi;
using FreeSql.Internal.CommonProvider;
partial class FreeSqlDbContextExtensions
{
/// <summary>
/// EFCore 99% 相似的 FluentApi 扩展方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="codeFirst"></param>
/// <param name="modelBuilder"></param>
/// <returns></returns>
public static ICodeFirst Entity<T>(this ICodeFirst codeFirst, Action<EfCoreTableFluent<T>> modelBuilder)
{
var cf = codeFirst as CodeFirstProvider;
codeFirst.ConfigEntity<T>(tf => modelBuilder(new EfCoreTableFluent<T>(cf._orm, tf)));
return codeFirst;
}
public static void EfCoreFluentApiTest(IFreeSql fsql)
{
var cf = fsql.CodeFirst;
cf.Entity<Song>(eb =>
{
eb.ToTable("tb_song");
eb.Ignore(a => a.Field1);
eb.Property(a => a.Title).HasColumnType("varchar(50)").IsRequired();
eb.Property(a => a.Url).HasMaxLength(100);
eb.Property(a => a.RowVersion).IsRowVersion();
eb.Property(a => a.CreateTime).HasDefaultValueSql("current_timestamp");
eb.HasKey(a => a.Id);
eb.HasIndex(a => a.Title).IsUnique().HasName("idx_xxx11");
//一对多、多对一
eb.HasOne(a => a.Type).HasForeignKey(a => a.TypeId).WithMany(a => a.Songs);
//多对多
eb.HasMany(a => a.Tags).WithMany(a => a.Songs, typeof(Song_tag));
});
cf.Entity<SongType>(eb =>
{
eb.HasMany(a => a.Songs).WithOne(a => a.Type).HasForeignKey(a => a.TypeId);
eb.HasData(new[]
{
new SongType
{
Id = 1,
Name = "流行",
Songs = new List<Song>(new[]
{
new Song{ Title = "真的爱你" },
new Song{ Title = "爱你一万年" },
})
},
new SongType
{
Id = 2,
Name = "乡村",
Songs = new List<Song>(new[]
{
new Song{ Title = "乡里乡亲" },
})
},
});
});
cf.SyncStructure<SongType>();
cf.SyncStructure<Song>();
}
public class SongType
{
public int Id { get; set; }
public string Name { get; set; }
public List<Song> Songs { get; set; }
}
public class Song
{
[Column(IsIdentity = true)]
public int Id { get; set; }
public string Title { get; set; }
public string Url { get; set; }
public DateTime CreateTime { get; set; }
public int TypeId { get; set; }
public SongType Type { get; set; }
public List<Tag> Tags { get; set; }
public int Field1 { get; set; }
public long RowVersion { get; set; }
}
public class Song_tag
{
public int Song_id { get; set; }
public Song Song { get; set; }
public int Tag_id { get; set; }
public Tag Tag { get; set; }
}
public class Tag
{
[Column(IsIdentity = true)]
public int Id { get; set; }
public string Name { get; set; }
public List<Song> Songs { get; set; }
}
}

365
FreeSql.DbContext/EfCoreFluentApi/EfCoreTableFluent.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using FreeSql.DataAnnotations;
namespace FreeSql.Extensions.EfCoreFluentApi
{
public class EfCoreTableFluent<T>
{
IFreeSql _fsql;
TableFluent<T> _tf;
internal EfCoreTableFluent(IFreeSql fsql, TableFluent<T> tf)
{
_fsql = fsql;
_tf = tf;
}
public EfCoreTableFluent<T> ToTable(string name)
{
_tf.Name(name);
return this;
}
public EfCoreTableFluent<T> ToView(string name)
{
_tf.DisableSyncStructure(true);
_tf.Name(name);
return this;
}
public EfCoreColumnFluent Property<TProperty>(Expression<Func<T, TProperty>> property) => new EfCoreColumnFluent(_tf.Property(property));
public EfCoreColumnFluent Property(string property) => new EfCoreColumnFluent(_tf.Property(property));
/// <summary>
/// 使用 FreeSql FluentApi 方法，当 EFCore FluentApi 方法无法表示的时候使用
/// </summary>
/// <returns></returns>
public TableFluent<T> Help() => _tf;
#region HasKey
public EfCoreTableFluent<T> HasKey(Expression<Func<T, object>> key)
{
var exp = key?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 key 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_tf.Property((exp as MemberExpression).Member.Name).IsPrimary(true);
break;
case ExpressionType.New:
foreach (var member in (exp as NewExpression).Members)
_tf.Property(member.Name).IsPrimary(true);
break;
}
return this;
}
#endregion
#region HasIndex
public HasIndexFluent HasIndex(Expression<Func<T, object>> index)
{
var exp = index?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 index 不能为 null");
var indexName = $"idx_{Guid.NewGuid().ToString("N").Substring(0, 8)}";
var columns = new List<string>();
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
columns.Add((exp as MemberExpression).Member.Name);
break;
case ExpressionType.New:
foreach (var member in (exp as NewExpression).Members)
columns.Add(member.Name);
break;
}
_tf.Index(indexName, string.Join(", ", columns), false);
return new HasIndexFluent(_tf, indexName, columns);
}
public class HasIndexFluent
{
TableFluent<T> _modelBuilder;
string _indexName;
List<string> _columns;
bool _isUnique;
internal HasIndexFluent(TableFluent<T> modelBuilder, string indexName, List<string> columns)
{
_modelBuilder = modelBuilder;
_indexName = indexName;
_columns = columns;
}
public HasIndexFluent IsUnique()
{
_isUnique = true;
_modelBuilder.Index(_indexName, string.Join(", ", _columns), _isUnique);
return this;
}
public HasIndexFluent HasName(string name)
{
_modelBuilder.IndexRemove(_indexName);
_indexName = name;
_modelBuilder.Index(_indexName, string.Join(", ", _columns), _isUnique);
return this;
}
}
#endregion
#region HasOne
public HasOneFluent<T2> HasOne<T2>(Expression<Func<T, T2>> one)
{
var exp = one?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 one 不能为 null");
var oneProperty = "";
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
oneProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(oneProperty)) throw new ArgumentException("参数错误 one");
return new HasOneFluent<T2>(_fsql, _tf, oneProperty);
}
public class HasOneFluent<T2>
{
IFreeSql _fsql;
TableFluent<T> _tf;
string _selfProperty;
string _selfBind;
string _withManyProperty;
string _withOneProperty;
string _withOneBind;
internal HasOneFluent(IFreeSql fsql, TableFluent<T> modelBuilder, string oneProperty)
{
_fsql = fsql;
_tf = modelBuilder;
_selfProperty = oneProperty;
}
public HasOneFluent<T2> WithMany<TMany>(Expression<Func<T2, TMany>> many)
{
var exp = many?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 many 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_withManyProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(_withManyProperty)) throw new ArgumentException("参数错误 many");
if (string.IsNullOrEmpty(_selfBind) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withManyProperty, _selfBind));
return this;
}
public HasOneFluent<T2> WithOne(Expression<Func<T2, T>> one, Expression<Func<T2, object>> foreignKey)
{
var exp = one?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 one 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_withOneProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(_withOneProperty)) throw new ArgumentException("参数错误 one");
exp = foreignKey?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 foreignKey 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_withOneBind = (exp as MemberExpression).Member.Name;
_withOneBind = _withOneBind.TrimStart(',', ' ');
break;
case ExpressionType.New:
_withOneBind = "";
foreach (var member in (exp as NewExpression).Members)
_withOneBind += ", " + member.Name;
_withOneBind = _withOneBind.TrimStart(',', ' ');
break;
}
if (string.IsNullOrEmpty(_withOneBind)) throw new ArgumentException("参数错误 foreignKey");
if (string.IsNullOrEmpty(_selfBind) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withOneProperty, _withOneBind));
return this;
}
public HasOneFluent<T2> HasForeignKey(Expression<Func<T, object>> foreignKey)
{
var exp = foreignKey?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 foreignKey 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_selfBind = (exp as MemberExpression).Member.Name;
_selfBind = _selfBind.TrimStart(',', ' ');
break;
case ExpressionType.New:
_selfBind = "";
foreach (var member in (exp as NewExpression).Members)
_selfBind += ", " + member.Name;
_selfBind = _selfBind.TrimStart(',', ' ');
break;
}
if (string.IsNullOrEmpty(_selfBind)) throw new ArgumentException("参数错误 foreignKey");
_tf.Navigate(_selfProperty, _selfBind);
if (string.IsNullOrEmpty(_withManyProperty) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withManyProperty, _selfBind));
if (string.IsNullOrEmpty(_withOneProperty) == false && string.IsNullOrEmpty(_withOneBind) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withOneProperty, _withOneBind));
return this;
}
}
#endregion
#region HasMany
public HasManyFluent<T2> HasMany<T2>(Expression<Func<T, IEnumerable<T2>>> many)
{
var exp = many?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 many 不能为 null");
var manyProperty = "";
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
manyProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(manyProperty)) throw new ArgumentException("参数错误 many");
return new HasManyFluent<T2>(_fsql, _tf, manyProperty);
}
public class HasManyFluent<T2>
{
IFreeSql _fsql;
TableFluent<T> _tf;
string _selfProperty;
string _selfBind;
string _withOneProperty;
string _withManyProperty;
internal HasManyFluent(IFreeSql fsql, TableFluent<T> modelBuilder, string manyProperty)
{
_fsql = fsql;
_tf = modelBuilder;
_selfProperty = manyProperty;
}
public void WithMany(Expression<Func<T2, IEnumerable<T>>> many, Type middleType)
{
var exp = many?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 many 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_withManyProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(_withManyProperty)) throw new ArgumentException("参数错误 many");
_tf.Navigate(_selfProperty, null, middleType);
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withManyProperty, null, middleType));
}
public HasManyFluent<T2> WithOne(Expression<Func<T2, T>> one)
{
var exp = one?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 one 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_withOneProperty = (exp as MemberExpression).Member.Name;
break;
}
if (string.IsNullOrEmpty(_withOneProperty)) throw new ArgumentException("参数错误 one");
if (string.IsNullOrEmpty(_selfBind) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withOneProperty, _selfBind));
return this;
}
public HasManyFluent<T2> HasForeignKey(Expression<Func<T2, object>> foreignKey)
{
var exp = foreignKey?.Body;
if (exp?.NodeType == ExpressionType.Convert) exp = (exp as UnaryExpression)?.Operand;
if (exp == null) throw new ArgumentException("参数错误 foreignKey 不能为 null");
switch (exp.NodeType)
{
case ExpressionType.MemberAccess:
_selfBind = (exp as MemberExpression).Member.Name;
_selfBind = _selfBind.TrimStart(',', ' ');
break;
case ExpressionType.New:
_selfBind = "";
foreach (var member in (exp as NewExpression).Members)
_selfBind += ", " + member.Name;
_selfBind = _selfBind.TrimStart(',', ' ');
break;
}
if (string.IsNullOrEmpty(_selfBind)) throw new ArgumentException("参数错误 foreignKey");
_tf.Navigate(_selfProperty, _selfBind);
if (string.IsNullOrEmpty(_withOneProperty) == false)
_fsql.CodeFirst.ConfigEntity<T2>(eb2 => eb2.Navigate(_withOneProperty, _selfBind));
return this;
}
}
#endregion
public EfCoreTableFluent<T> Ignore<TProperty>(Expression<Func<T, TProperty>> property)
{
_tf.Property(property).IsIgnore(true);
return this;
}
public EfCoreTableFluent<T> HasData(T data) => HasData(new[] { data });
/// <summary>
/// 使用 Repository + EnableAddOrUpdateNavigateList + NoneParameter 方式插入种子数据
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public EfCoreTableFluent<T> HasData(IEnumerable<T> data)
{
if (data.Any() == false) return this;
var sdCopy = data.Select(a => (object)a).ToList();
var sdCopyLock = new object();
_fsql.Aop.SyncStructureAfter += new EventHandler<Aop.SyncStructureAfterEventArgs>((s, e) =>
{
object[] sd = null;
lock (sdCopyLock)
sd = sdCopy?.ToArray();
if (sd == null || sd.Any() == false) return;
foreach (var et in e.EntityTypes)
{
if (et != typeof(T)) continue;
if (_fsql.Select<object>().AsType(et).Any()) continue;
var repo = _fsql.GetRepository<object>();
repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
repo.DbContextOptions.NoneParameter = true;
repo.AsType(et);
repo.Insert(sd);
lock (sdCopyLock)
sdCopy = null;
}
});
return this;
}
}
}