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Lazy 延时加载属性，支持ManyToMany(多对多)

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28810 2019-01-21 20:08:06 +08:00
parent 9ec287535e
commit 0bcacc706a
2 changed files with 250 additions and 56 deletions
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36
FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
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@ -1,4 +1,5 @@
using FreeSql.DataAnnotations; using FreeSql.DataAnnotations;
using Newtonsoft.Json;
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Linq; using System.Linq;
@ -52,8 +53,43 @@ namespace FreeSql.Tests.MySql {
public List<TestTypeInfo> Types { get; set; } public List<TestTypeInfo> Types { get; set; }
} }
public partial class Song {
[Column(IsIdentity = true)]
public int Id { get; set; }
public DateTime? Create_time { get; set; }
public bool? Is_deleted { get; set; }
public string Title { get; set; }
public string Url { get; set; }
public virtual ICollection<Tag> Tags { get; set; }
}
public partial class Song_tag {
public int Song_id { get; set; }
public virtual Song Song { get; set; }
public int Tag_id { get; set; }
public virtual Tag Tag { get; set; }
}
public partial class Tag {
[Column(IsIdentity = true)]
public int Id { get; set; }
public int? Parent_id { get; set; }
public virtual Tag Parent { get; set; }
public decimal? Ddd { get; set; }
public string Name { get; set; }
public virtual ICollection<Song> Songs { get; set; }
}
[Fact] [Fact]
public void Lazy() { public void Lazy() {
//Type.GetType();
var sql = g.mysql.Select<Tag>().Where(a => g.mysql.Select<Song_tag>().Where(b => b.Tag_id == a.Id && b.Song_id == 1).Any());
var songs = g.mysql.Select<Song>().Limit(10).ToList();
var ts = g.mysql.Select<TestTypeInfo>(1).ToOne(); var ts = g.mysql.Select<TestTypeInfo>(1).ToOne();

270
FreeSql/Internal/UtilsExpressionTree.cs
View File

@ -112,7 +112,7 @@ namespace FreeSql.Internal {
} }
tbc.TryAdd(entity, trytb); tbc.TryAdd(entity, trytb);
//virtual 属性延时加载，动态产生新的重写类 #region virtual 属性延时加载，动态产生新的重写类
if (common.CodeFirst.IsLazyLoading && propsLazy.Any()) { if (common.CodeFirst.IsLazyLoading && propsLazy.Any()) {
var trytbTypeName = trytb.Type.IsNested ? $"{trytb.Type.DeclaringType.Namespace}.{trytb.Type.DeclaringType.Name}.{trytb.Type.Name}" : $"{trytb.Type.Namespace}.{trytb.Type.Name}"; var trytbTypeName = trytb.Type.IsNested ? $"{trytb.Type.DeclaringType.Namespace}.{trytb.Type.DeclaringType.Name}.{trytb.Type.Name}" : $"{trytb.Type.Namespace}.{trytb.Type.Name}";
if (trytb.Type.IsPublic == false && trytb.Type.IsNestedPublic == false) throw new Exception($"【延时加载】实体类型 {trytbTypeName} 必须声明为 public"); if (trytb.Type.IsPublic == false && trytb.Type.IsNestedPublic == false) throw new Exception($"【延时加载】实体类型 {trytbTypeName} 必须声明为 public");
@ -135,79 +135,236 @@ namespace FreeSql.Internal {
//List 或 ICollection，一对多、多对多 //List 或 ICollection，一对多、多对多
var propElementType = vp.Item1.PropertyType.GenericTypeArguments.FirstOrDefault() ?? vp.Item1.PropertyType.GetElementType(); var propElementType = vp.Item1.PropertyType.GenericTypeArguments.FirstOrDefault() ?? vp.Item1.PropertyType.GetElementType();
if (propElementType != null) { if (propElementType != null) {
if (Activator.CreateInstance(vp.Item1.PropertyType) is ICollection == false) continue; if (vp.Item1.PropertyType.GetInterface("System.Collections.IEnumerable") == null) continue;
if (trytb.Primarys.Any() == false) { if (trytb.Primarys.Any() == false) {
//continue; //continue;
throw new Exception($"【延时加载】导航属性 {vp.Item1.Name} 解析错误，实体类型 {trytbTypeName} 缺少主键标识，[Column(IsPrimary = true)]"); throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，实体类型 {trytbTypeName} 缺少主键标识，[Column(IsPrimary = true)]");
} }
var tbref = propElementType == trytb.Type ? trytb : GetTableByEntity(propElementType, common); //可能是父子关系 var tbref = propElementType == trytb.Type ? trytb : GetTableByEntity(propElementType, common); //可能是父子关系
if (tbref == null) continue; if (tbref == null) continue;
var tbrefTypeName = tbref.Type.IsNested ? $"{tbref.Type.DeclaringType.Namespace}.{tbref.Type.DeclaringType.Name}.{tbref.Type.Name}" : $"{tbref.Type.Namespace}.{tbref.Type.Name}";
Type midType = null;
var isManyToMany = propElementType != trytb.Type && var isManyToMany = propElementType != trytb.Type &&
vp.Item1.Name.EndsWith($"{tbref.CsName}s") &&
tbref.Properties.Where(z => (z.Value.PropertyType.GenericTypeArguments.FirstOrDefault() == trytb.Type || z.Value.PropertyType.GetElementType() == trytb.Type) && tbref.Properties.Where(z => (z.Value.PropertyType.GenericTypeArguments.FirstOrDefault() == trytb.Type || z.Value.PropertyType.GetElementType() == trytb.Type) &&
vp.Item1.Name.EndsWith($"{z.Key}s", StringComparison.CurrentCultureIgnoreCase) && z.Key.EndsWith($"{trytb.CsName}s", StringComparison.CurrentCultureIgnoreCase) &&
z.Key.EndsWith($"{trytb.CsName}s", StringComparison.CurrentCultureIgnoreCase) && vp.Item1.PropertyType.GetInterface("System.Collections.IEnumerable") != null).Any();
Activator.CreateInstance(z.Value.PropertyType) is ICollection).Any(); if (isManyToMany) {
//中间表怎么查询 if (tbref.Primarys.Any() == false) {
if (isManyToMany) continue; //continue;
throw new Exception($"【延时加载ManyToMany】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，实体类型 {tbrefTypeName} 缺少主键标识，[Column(IsPrimary = true)]");
}
//中间表怎么查询，比如 Song、Tag、SongTag
var midFlagStr = vp.Item1.Name.Remove(vp.Item1.Name.Length - tbref.CsName.Length - 1);
var refcols = tbref.Properties.Where(z => z.Value.PropertyType == trytb.Type); //在 trytb 命名空间下查找中间类
var refprop = refcols.Count() == 1 ? refcols.First().Value : null; midType = trytb.Type.IsNested ?
var lmbdWhere = new StringBuilder(); trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.Type.DeclaringType.Name}+{trytb.CsName}{tbref.CsName}{midFlagStr}", false, true) : //SongTag
var vpcols = new ColumnInfo[trytb.Primarys.Length]; trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.CsName}{tbref.CsName}{midFlagStr}", false, true);
for (var a = 0; a < trytb.Primarys.Length; a++) { if (midType != null) {
var findtrytbPkCsName = trytb.Primarys[a].CsName.TrimStart('_'); var midTypeProps = midType.GetProperties();
if (findtrytbPkCsName.StartsWith(trytb.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtrytbPkCsName = findtrytbPkCsName.Substring(trytb.Type.Name.Length).TrimStart('_'); var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var findtrytb = vp.Item1.Name; var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (findtrytb.EndsWith(tbref.CsName + "s")) findtrytb = findtrytb.Substring(0, findtrytb.Length - tbref.CsName.Length - 1); if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
findtrytb += trytb.CsName; }
if (tbref.ColumnsByCs.TryGetValue($"{findtrytb}{findtrytbPkCsName}", out var trycol) == false && //骆峰命名 if (midType == null) {
tbref.ColumnsByCs.TryGetValue($"{findtrytb}_{findtrytbPkCsName}", out trycol) == false //下划线命名 midType = trytb.Type.IsNested ?
) { trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.Type.DeclaringType.Name}+{trytb.CsName}_{tbref.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true) : //Song_Tag
if (refprop != null && trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.CsName}_{tbref.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true);
tbref.ColumnsByCs.TryGetValue($"{refprop.Name}{findtrytbPkCsName}", out trycol) == false && //骆峰命名 if (midType != null) {
tbref.ColumnsByCs.TryGetValue($"{refprop.Name}_{findtrytbPkCsName}", out trycol) == false) //下划线命名 var midTypeProps = midType.GetProperties();
{ var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
if (midType == null) {
midType = trytb.Type.IsNested ?
trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.Type.DeclaringType.Name}+{tbref.CsName}{trytb.CsName}{midFlagStr}", false, true) : //TagSong
trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{tbref.CsName}{trytb.CsName}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
if (midType == null) {
midType = trytb.Type.IsNested ?
trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{trytb.Type.DeclaringType.Name}+{tbref.CsName}_{trytb.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true) : //Tag_Song
trytb.Type.Assembly.GetType($"{trytb.Type.Namespace}.{tbref.CsName}_{trytb.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
//在 tbref 命名空间下查找中间类
if (midType == null) {
midType = tbref.Type.IsNested ?
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.Type.DeclaringType.Name}+{trytb.CsName}{tbref.CsName}{midFlagStr}", false, true) : //SongTag
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{trytb.CsName}{tbref.CsName}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
if (midType == null) {
midType = tbref.Type.IsNested ?
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.Type.DeclaringType.Name}+{trytb.CsName}_{tbref.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true) : //Song_Tag
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{trytb.CsName}_{tbref.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
if (midType == null) {
midType = tbref.Type.IsNested ?
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.Type.DeclaringType.Name}+{tbref.CsName}{trytb.CsName}{midFlagStr}", false, true) : //TagSong
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.CsName}{trytb.CsName}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
if (midType == null) {
midType = tbref.Type.IsNested ?
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.Type.DeclaringType.Name}+{tbref.CsName}_{trytb.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true) : //Tag_Song
tbref.Type.Assembly.GetType($"{tbref.Type.Namespace}.{tbref.CsName}_{trytb.CsName}{(string.IsNullOrEmpty(midFlagStr) ? "" : "_")}{midFlagStr}", false, true);
if (midType != null) {
var midTypeProps = midType.GetProperties();
var midTypePropsTrytb = midTypeProps.Where(a => a.PropertyType == trytb.Type).Count();
var midTypePropsTbref = midTypeProps.Where(a => a.PropertyType == tbref.Type).Count();
if (midTypePropsTrytb != 1 || midTypePropsTbref != 1) midType = null;
}
}
isManyToMany = midType != null;
}
if (isManyToMany) {
var tbmid = GetTableByEntity(midType, common);
var midTypePropsTrytb = tbmid.Properties.Where(a => a.Value.PropertyType == trytb.Type).FirstOrDefault().Value;
//g.mysql.Select<Tag>().Where(a => g.mysql.Select<Song_tag>().Where(b => b.Tag_id == a.Id && b.Song_id == 1).Any());
var lmbdWhere = new StringBuilder();
for (var a = 0; a < trytb.Primarys.Length; a++) {
var findtrytbPkCsName = trytb.Primarys[a].CsName.TrimStart('_');
if (findtrytbPkCsName.StartsWith(trytb.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtrytbPkCsName = findtrytbPkCsName.Substring(trytb.Type.Name.Length).TrimStart('_');
if (tbmid.ColumnsByCs.TryGetValue($"{midTypePropsTrytb.Name}{findtrytbPkCsName}", out var trycol) == false && //骆峰命名
tbmid.ColumnsByCs.TryGetValue($"{midTypePropsTrytb.Name}_{findtrytbPkCsName}", out trycol) == false //下划线命名
) {
}
if (trycol != null && trycol.CsType != trytb.Primarys[a].CsType)
throw new Exception($"【延时加载ManyToMany】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，{tbmid.CsName}.{trycol.CsName} 和 {trytb.CsName}.{trytb.Primarys[a].CsName} 类型不一致");
if (trycol == null)
throw new Exception($"【延时加载ManyToMany】导航属性 {trytbTypeName}.{vp.Item1.Name} 在 {tbmid.CsName} 中没有找到对应的字段，如：{midTypePropsTrytb.Name}{findtrytbPkCsName}、{midTypePropsTrytb.Name}_{findtrytbPkCsName}");
if (a > 0) lmbdWhere.Append(" && ");
lmbdWhere.Append("b.").Append(trycol.CsName).Append(" == this.").Append(trytb.Primarys[a].CsName);
}
var midTypePropsTbref = tbmid.Properties.Where(a => a.Value.PropertyType == tbref.Type).FirstOrDefault().Value;
for (var a = 0; a < tbref.Primarys.Length; a++) {
var findtbrefPkCsName = tbref.Primarys[a].CsName.TrimStart('_');
if (findtbrefPkCsName.StartsWith(tbref.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtbrefPkCsName = findtbrefPkCsName.Substring(tbref.Type.Name.Length).TrimStart('_');
if (tbmid.ColumnsByCs.TryGetValue($"{midTypePropsTbref.Name}{findtbrefPkCsName}", out var trycol) == false && //骆峰命名
tbmid.ColumnsByCs.TryGetValue($"{midTypePropsTbref.Name}_{findtbrefPkCsName}", out trycol) == false //下划线命名
) {
} }
if (trycol != null && trycol.CsType != tbref.Primarys[a].CsType) if (trycol != null && trycol.CsType != tbref.Primarys[a].CsType)
throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，{trytb.CsName}.{trytb.Primarys[a].CsName} 和 {tbref.CsName}.{trycol.CsName} 类型不一致"); throw new Exception($"【延时加载ManyToMany】导航属性 {tbrefTypeName}.{vp.Item1.Name} 解析错误，{tbmid.CsName}.{trycol.CsName} 和 {tbref.CsName}.{tbref.Primarys[a].CsName} 类型不一致");
if (trycol == null) if (trycol == null)
throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 在 {tbref.CsName} 中没有找到对应的字段，如：{findtrytb}{findtrytbPkCsName}、{findtrytb}_{findtrytbPkCsName}、{refprop.Name}{findtrytbPkCsName}、{refprop.Name}_{findtrytbPkCsName}"); throw new Exception($"【延时加载ManyToMany】导航属性 {tbrefTypeName}.{vp.Item1.Name} 在 {tbmid.CsName} 中没有找到对应的字段，如：{midTypePropsTbref.Name}{findtbrefPkCsName}、{midTypePropsTbref.Name}_{findtbrefPkCsName}");
}
if (a > 0) lmbdWhere.Append(" && ");
lmbdWhere.Append("a.").Append(trycol.CsName).Append(" == this.").Append(trytb.Primarys[a].CsName);
if (refprop == null) { lmbdWhere.Append(" && b.").Append(trycol.CsName).Append(" == a.").Append(tbref.Primarys[a].CsName);
var findtrytbName = trycol.CsName; }
if (findtrytbName.EndsWith(trytb.Primarys.First().CsName)) {
findtrytbName = findtrytbName.Remove(findtrytbName.Length - trytb.Primarys.First().CsName.Length).TrimEnd('_'); cscode.Append(" private bool __lazy__").Append(vp.Item1.Name).AppendLine(" = false;")
if (tbref.Properties.TryGetValue(findtrytbName, out refprop) && refprop.PropertyType != trytb.Type) .Append(" public override ").Append(propTypeName).Append(" ").Append(vp.Item1.Name).AppendLine(" {");
refprop = null; if (vp.Item2) { //get 重写
cscode.Append(" get {\r\n")
.Append(" if (base.").Append(vp.Item1.Name).Append(" == null && __lazy__").Append(vp.Item1.Name).AppendLine(" == false) {")
.Append(" base.").Append(vp.Item1.Name).Append(" = __fsql_orm__.Select<").Append(propElementType.IsNested ? $"{propElementType.DeclaringType.Namespace}.{propElementType.DeclaringType.Name}.{propElementType.Name}" : $"{propElementType.Namespace}.{propElementType.Name}")
.Append(">().Where(a => __fsql_orm__.Select<").Append(tbmid.Type.IsNested ? $"{tbmid.Type.DeclaringType.Namespace}.{tbmid.Type.DeclaringType.Name}.{tbmid.Type.Name}" : $"{tbmid.Type.Namespace}.{tbmid.Type.Name}")
.Append(">().Where(b => ").Append(lmbdWhere.ToString()).AppendLine(").Any()).ToList();");
cscode.Append(" __lazy__").Append(vp.Item1.Name).AppendLine(" = true;")
.Append(" }\r\n")
.Append(" return base.").Append(vp.Item1.Name).AppendLine(";")
.Append(" }\r\n");
}
if (vp.Item3) { //set 重写
cscode.Append(" set => base.").Append(vp.Item1.Name).AppendLine(" = value;");
}
cscode.AppendLine(" }");
} else { //One To Many
var refcols = tbref.Properties.Where(z => z.Value.PropertyType == trytb.Type);
var refprop = refcols.Count() == 1 ? refcols.First().Value : null;
var lmbdWhere = new StringBuilder();
for (var a = 0; a < trytb.Primarys.Length; a++) {
var findtrytbPkCsName = trytb.Primarys[a].CsName.TrimStart('_');
if (findtrytbPkCsName.StartsWith(trytb.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtrytbPkCsName = findtrytbPkCsName.Substring(trytb.Type.Name.Length).TrimStart('_');
var findtrytb = vp.Item1.Name;
if (findtrytb.EndsWith(tbref.CsName + "s")) findtrytb = findtrytb.Substring(0, findtrytb.Length - tbref.CsName.Length - 1);
findtrytb += trytb.CsName;
if (tbref.ColumnsByCs.TryGetValue($"{findtrytb}{findtrytbPkCsName}", out var trycol) == false && //骆峰命名
tbref.ColumnsByCs.TryGetValue($"{findtrytb}_{findtrytbPkCsName}", out trycol) == false //下划线命名
) {
if (refprop != null &&
tbref.ColumnsByCs.TryGetValue($"{refprop.Name}{findtrytbPkCsName}", out trycol) == false && //骆峰命名
tbref.ColumnsByCs.TryGetValue($"{refprop.Name}_{findtrytbPkCsName}", out trycol) == false) //下划线命名
{
}
if (trycol != null && trycol.CsType != trytb.Primarys[a].CsType)
throw new Exception($"【延时加载OneToMany】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，{trytb.CsName}.{trytb.Primarys[a].CsName} 和 {tbref.CsName}.{trycol.CsName} 类型不一致");
if (trycol == null)
throw new Exception($"【延时加载OneToMany】导航属性 {trytbTypeName}.{vp.Item1.Name} 在 {tbref.CsName} 中没有找到对应的字段，如：{findtrytb}{findtrytbPkCsName}、{findtrytb}_{findtrytbPkCsName}" + (refprop == null ? "" : $"、{refprop.Name}{findtrytbPkCsName}、{refprop.Name}_{findtrytbPkCsName}"));
}
if (a > 0) lmbdWhere.Append(" && ");
lmbdWhere.Append("a.").Append(trycol.CsName).Append(" == this.").Append(trytb.Primarys[a].CsName);
if (refprop == null) { //加载成功后，把列表对应的导航属性值设置为 this，比如 Select<TopicType>().ToOne().Topics 下的 TopicType 属性值全部为 this
var findtrytbName = trycol.CsName;
if (findtrytbName.EndsWith(trytb.Primarys.First().CsName)) {
findtrytbName = findtrytbName.Remove(findtrytbName.Length - trytb.Primarys.First().CsName.Length).TrimEnd('_');
if (tbref.Properties.TryGetValue(findtrytbName, out refprop) && refprop.PropertyType != trytb.Type)
refprop = null;
}
} }
} }
}
cscode.Append(" private bool __lazy__").Append(vp.Item1.Name).AppendLine(" = false;") cscode.Append(" private bool __lazy__").Append(vp.Item1.Name).AppendLine(" = false;")
.Append(" public override ").Append(propTypeName).Append(" ").Append(vp.Item1.Name).AppendLine(" {"); .Append(" public override ").Append(propTypeName).Append(" ").Append(vp.Item1.Name).AppendLine(" {");
if (vp.Item2) { //get 重写 if (vp.Item2) { //get 重写
cscode.Append(" get {\r\n") cscode.Append(" get {\r\n")
.Append(" if (base.").Append(vp.Item1.Name).Append(" == null && __lazy__").Append(vp.Item1.Name).AppendLine(" == false) {") .Append(" if (base.").Append(vp.Item1.Name).Append(" == null && __lazy__").Append(vp.Item1.Name).AppendLine(" == false) {")
.Append(" base.").Append(vp.Item1.Name).Append(" = __fsql_orm__.Select<").Append(propElementType.IsNested ? $"{propElementType.DeclaringType.Namespace}.{propElementType.DeclaringType.Name}.{propElementType.Name}" : $"{propElementType.Namespace}.{propElementType.Name}").Append(">().Where(a => ").Append(lmbdWhere.ToString()).AppendLine(").ToList();"); .Append(" base.").Append(vp.Item1.Name).Append(" = __fsql_orm__.Select<").Append(propElementType.IsNested ? $"{propElementType.DeclaringType.Namespace}.{propElementType.DeclaringType.Name}.{propElementType.Name}" : $"{propElementType.Namespace}.{propElementType.Name}").Append(">().Where(a => ").Append(lmbdWhere.ToString()).AppendLine(").ToList();");
if (refprop != null) { if (refprop != null) {
cscode.Append(" foreach (var loc1 in base.").Append(vp.Item1.Name).AppendLine(")") cscode.Append(" foreach (var loc1 in base.").Append(vp.Item1.Name).AppendLine(")")
.Append(" loc1.").Append(refprop.Name).AppendLine(" = this;"); .Append(" loc1.").Append(refprop.Name).AppendLine(" = this;");
}
cscode.Append(" __lazy__").Append(vp.Item1.Name).AppendLine(" = true;")
.Append(" }\r\n")
.Append(" return base.").Append(vp.Item1.Name).AppendLine(";")
.Append(" }\r\n");
} }
cscode.Append(" __lazy__").Append(vp.Item1.Name).AppendLine(" = true;") if (vp.Item3) { //set 重写
.Append(" }\r\n") cscode.Append(" set => base.").Append(vp.Item1.Name).AppendLine(" = value;");
.Append(" return base.").Append(vp.Item1.Name).AppendLine(";") }
.Append(" }\r\n"); cscode.AppendLine(" }");
} }
if (vp.Item3) { //set 重写
cscode.Append(" set => base.").Append(vp.Item1.Name).AppendLine(" = value;");
}
cscode.AppendLine(" }");
} else { //一对一、多对一 } else { //一对一、多对一
var tbref = vp.Item1.PropertyType == trytb.Type ? trytb : GetTableByEntity(vp.Item1.PropertyType, common); //可能是父子关系 var tbref = vp.Item1.PropertyType == trytb.Type ? trytb : GetTableByEntity(vp.Item1.PropertyType, common); //可能是父子关系
@ -221,7 +378,6 @@ namespace FreeSql.Internal {
tbref.Primarys.Length == trytb.Primarys.Length && tbref.Primarys.Length == trytb.Primarys.Length &&
string.Join(",", tbref.Primarys.Select(a => a.CsType.FullName)) == string.Join(",", trytb.Primarys.Select(a => a.CsType.FullName)); string.Join(",", tbref.Primarys.Select(a => a.CsType.FullName)) == string.Join(",", trytb.Primarys.Select(a => a.CsType.FullName));
var lmbdWhere = new StringBuilder(); var lmbdWhere = new StringBuilder();
var vpcols = new ColumnInfo[tbref.Primarys.Length];
for (var a = 0; a < tbref.Primarys.Length; a++) { for (var a = 0; a < tbref.Primarys.Length; a++) {
var findtbrefPkCsName = tbref.Primarys[a].CsName.TrimStart('_'); var findtbrefPkCsName = tbref.Primarys[a].CsName.TrimStart('_');
if (findtbrefPkCsName.StartsWith(tbref.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtbrefPkCsName = findtbrefPkCsName.Substring(tbref.Type.Name.Length).TrimStart('_'); if (findtbrefPkCsName.StartsWith(tbref.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtbrefPkCsName = findtbrefPkCsName.Substring(tbref.Type.Name.Length).TrimStart('_');
@ -281,6 +437,7 @@ namespace FreeSql.Internal {
trytb.TypeLazySetOrm = type.GetProperty("__fsql_orm__").GetSetMethod(); trytb.TypeLazySetOrm = type.GetProperty("__fsql_orm__").GetSetMethod();
} }
} }
#endregion
return tbc.TryGetValue(entity, out var trytb2) ? trytb2 : trytb; return tbc.TryGetValue(entity, out var trytb2) ? trytb2 : trytb;
} }
@ -716,7 +873,7 @@ namespace FreeSql.Internal {
return Expression.Lambda<Func<object, object>>(exp, parmExp).Compile(); return Expression.Lambda<Func<object, object>>(exp, parmExp).Compile();
}); });
return func(value); return func(value);
#region oldcode
//var func = _dicGetDataReaderValue.GetOrAdd(type, k1 => new ConcurrentDictionary<Type, Func<object, object>>()).GetOrAdd(value.GetType(), valueType => { //var func = _dicGetDataReaderValue.GetOrAdd(type, k1 => new ConcurrentDictionary<Type, Func<object, object>>()).GetOrAdd(value.GetType(), valueType => {
// var returnTarget = Expression.Label(typeof(object)); // var returnTarget = Expression.Label(typeof(object));
// var parmExp = Expression.Parameter(typeof(object), "value"); // var parmExp = Expression.Parameter(typeof(object), "value");
@ -841,6 +998,7 @@ namespace FreeSql.Internal {
// return Expression.Lambda<Func<object, object>>(parmExp, parmExp).Compile(); // return Expression.Lambda<Func<object, object>>(parmExp, parmExp).Compile();
//}); //});
//return func(value); //return func(value);
#endregion
} }
internal static object GetDataReaderValue22(Type type, object value) { internal static object GetDataReaderValue22(Type type, object value) {
if (value == null || value == DBNull.Value) return null; if (value == null || value == DBNull.Value) return null;