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virtual lazy 加载现实 OneToOne/ManyToOne/OneToMany
This commit is contained in:
28810
@@ -26,146 +26,263 @@ namespace FreeSql.Internal {
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static ConcurrentDictionary<string, ConcurrentDictionary<Type, TableInfo>> _cacheGetTableByEntity = new ConcurrentDictionary<string, ConcurrentDictionary<Type, TableInfo>>();
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internal static TableInfo GetTableByEntity(Type entity, CommonUtils common) {
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if (entity.FullName.StartsWith("<>f__AnonymousType")) return null;
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return _cacheGetTableByEntity.GetOrAdd(common.DbName, k1 => new ConcurrentDictionary<Type, TableInfo>()).GetOrAdd(entity, k2 => { //区分数据库类型缓存
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if (common.CodeFirst.GetDbInfo(entity) != null) return null;
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var tbattr = entity.GetCustomAttributes(typeof(TableAttribute), false).LastOrDefault() as TableAttribute;
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var trytb = new TableInfo();
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trytb.Type = entity;
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trytb.Properties = entity.GetProperties().ToDictionary(a => a.Name, a => a, StringComparer.CurrentCultureIgnoreCase);
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trytb.CsName = entity.Name;
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trytb.DbName = (tbattr?.Name ?? entity.Name);
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trytb.DbOldName = tbattr?.OldName;
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if (common.CodeFirst.IsSyncStructureToLower) {
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trytb.DbName = trytb.DbName.ToLower();
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trytb.DbOldName = trytb.DbOldName?.ToLower();
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var tbc = _cacheGetTableByEntity.GetOrAdd(common.DbName, k1 => new ConcurrentDictionary<Type, TableInfo>()); //区分数据库类型缓存
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if (tbc.TryGetValue(entity, out var trytb)) return trytb;
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if (common.CodeFirst.GetDbInfo(entity) != null) return null;
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var tbattr = entity.GetCustomAttributes(typeof(TableAttribute), false).LastOrDefault() as TableAttribute;
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trytb = new TableInfo();
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trytb.Type = entity;
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trytb.Properties = entity.GetProperties().ToDictionary(a => a.Name, a => a, StringComparer.CurrentCultureIgnoreCase);
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trytb.CsName = entity.Name;
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trytb.DbName = (tbattr?.Name ?? entity.Name);
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trytb.DbOldName = tbattr?.OldName;
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if (common.CodeFirst.IsSyncStructureToLower) {
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trytb.DbName = trytb.DbName.ToLower();
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trytb.DbOldName = trytb.DbOldName?.ToLower();
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}
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trytb.SelectFilter = tbattr?.SelectFilter;
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var propsLazy = new List<(PropertyInfo, bool, bool)>();
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foreach (var p in trytb.Properties.Values) {
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var tp = common.CodeFirst.GetDbInfo(p.PropertyType);
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//if (tp == null) continue;
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var colattr = p.GetCustomAttributes(typeof(ColumnAttribute), false).LastOrDefault() as ColumnAttribute;
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if (tp == null && colattr == null) {
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if (common.CodeFirst.IsLazyLoading) {
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var getIsVirtual = trytb.Type.GetMethod($"get_{p.Name}")?.IsVirtual;
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var setIsVirtual = trytb.Type.GetMethod($"set_{p.Name}")?.IsVirtual;
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if (getIsVirtual == true || setIsVirtual == true)
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propsLazy.Add((p, getIsVirtual == true, setIsVirtual == true));
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}
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continue;
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}
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trytb.SelectFilter = tbattr?.SelectFilter;
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var virtualProps = new List<(PropertyInfo, bool, bool)>();
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foreach (var p in trytb.Properties.Values) {
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var tp = common.CodeFirst.GetDbInfo(p.PropertyType);
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//if (tp == null) continue;
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var colattr = p.GetCustomAttributes(typeof(ColumnAttribute), false).LastOrDefault() as ColumnAttribute;
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if (tp == null && colattr == null) {
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if (common.CodeFirst.IsLazyLoading) {
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var getIsVirtual = trytb.Type.GetMethod($"get_{p.Name}")?.IsVirtual;
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var setIsVirtual = trytb.Type.GetMethod($"set_{p.Name}")?.IsVirtual;
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if (getIsVirtual == true || setIsVirtual == true)
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virtualProps.Add((p, getIsVirtual == true, setIsVirtual == true));
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}
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continue;
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}
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if (colattr == null)
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colattr = new ColumnAttribute {
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Name = p.Name,
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DbType = tp.Value.dbtypeFull,
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IsIdentity = false,
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IsNullable = tp.Value.isnullable ?? true,
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IsPrimary = false,
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};
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if (string.IsNullOrEmpty(colattr.DbType)) colattr.DbType = tp?.dbtypeFull ?? "varchar(255)";
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colattr.DbType = colattr.DbType.ToUpper();
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if (tp != null && tp.Value.isnullable == null) colattr.IsNullable = tp.Value.dbtypeFull.Contains("NOT NULL") == false;
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if (colattr.DbType?.Contains("NOT NULL") == true) colattr.IsNullable = false;
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if (string.IsNullOrEmpty(colattr.Name)) colattr.Name = p.Name;
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if (common.CodeFirst.IsSyncStructureToLower) colattr.Name = colattr.Name.ToLower();
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if ((colattr.IsNullable == false || colattr.IsIdentity || colattr.IsPrimary) && colattr.DbType.Contains("NOT NULL") == false) {
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colattr.IsNullable = false;
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colattr.DbType += " NOT NULL";
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}
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if (colattr.IsNullable == true && colattr.DbType.Contains("NOT NULL")) colattr.DbType = colattr.DbType.Replace("NOT NULL", "");
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colattr.DbType = Regex.Replace(colattr.DbType, @"\([^\)]+\)", m => {
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var tmpLt = Regex.Replace(m.Groups[0].Value, @"\s", "");
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if (tmpLt.Contains("CHAR")) tmpLt = tmpLt.Replace("CHAR", " CHAR");
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if (tmpLt.Contains("BYTE")) tmpLt = tmpLt.Replace("BYTE", " BYTE");
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return tmpLt;
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});
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colattr.DbDefautValue = trytb.Properties[p.Name].GetValue(Activator.CreateInstance(trytb.Type));
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if (colattr.DbDefautValue == null) colattr.DbDefautValue = tp?.defaultValue;
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if (colattr.IsNullable == false && colattr.DbDefautValue == null) {
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var consturctorType = p.PropertyType.GenericTypeArguments.FirstOrDefault() ?? p.PropertyType;
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colattr.DbDefautValue = Activator.CreateInstance(consturctorType);
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}
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var col = new ColumnInfo {
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Table = trytb,
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CsName = p.Name,
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CsType = p.PropertyType,
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Attribute = colattr
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if (colattr == null)
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colattr = new ColumnAttribute {
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Name = p.Name,
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DbType = tp.Value.dbtypeFull,
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IsIdentity = false,
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IsNullable = tp.Value.isnullable ?? true,
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IsPrimary = false,
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};
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trytb.Columns.Add(colattr.Name, col);
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trytb.ColumnsByCs.Add(p.Name, col);
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}
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trytb.Primarys = trytb.Columns.Values.Where(a => a.Attribute.IsPrimary).ToArray();
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if (trytb.Primarys.Any() == false) {
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trytb.Primarys = trytb.Columns.Values.Where(a => a.Attribute.IsIdentity).ToArray();
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foreach (var col in trytb.Primarys)
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col.Attribute.IsPrimary = true;
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}
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if (string.IsNullOrEmpty(colattr.DbType)) colattr.DbType = tp?.dbtypeFull ?? "varchar(255)";
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colattr.DbType = colattr.DbType.ToUpper();
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if (common.CodeFirst.IsLazyLoading && virtualProps.Any()) {
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//virtual 属性延时加载，生态产生新的重写类
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if (trytb.Type.IsNestedPublic == false) throw new Exception("【延时加载】功能发生错误，实体类必须声明为 public");
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if (tp != null && tp.Value.isnullable == null) colattr.IsNullable = tp.Value.dbtypeFull.Contains("NOT NULL") == false;
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if (colattr.DbType?.Contains("NOT NULL") == true) colattr.IsNullable = false;
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if (string.IsNullOrEmpty(colattr.Name)) colattr.Name = p.Name;
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if (common.CodeFirst.IsSyncStructureToLower) colattr.Name = colattr.Name.ToLower();
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var overrieds = 0;
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var cscode = new StringBuilder();
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cscode.AppendLine("using System;")
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.AppendLine("using FreeSql.DataAnnotations;")
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.AppendLine("using System.Collections.Generic;")
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.AppendLine("using System.Linq;")
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.AppendLine("")
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.Append("public class FreeSqlOverrideLazyEntity").Append(trytb.Type.Name).Append(" : ").Append(trytb.Type.FullName.Replace("+", ".")).AppendLine(" {")
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.AppendLine(" public IFreeSql __fsql_orm__ { get; set; }\r\n");
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foreach(var vp in virtualProps) {
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TableInfo pktb = null;
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if (vp.Item1.PropertyType == trytb.Type) pktb = trytb;
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else pktb = GetTableByEntity(vp.Item1.PropertyType, common);
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if (pktb == null || pktb.Primarys.Any() == false) {
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if ((colattr.IsNullable == false || colattr.IsIdentity || colattr.IsPrimary) && colattr.DbType.Contains("NOT NULL") == false) {
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colattr.IsNullable = false;
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colattr.DbType += " NOT NULL";
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}
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if (colattr.IsNullable == true && colattr.DbType.Contains("NOT NULL")) colattr.DbType = colattr.DbType.Replace("NOT NULL", "");
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colattr.DbType = Regex.Replace(colattr.DbType, @"\([^\)]+\)", m => {
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var tmpLt = Regex.Replace(m.Groups[0].Value, @"\s", "");
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if (tmpLt.Contains("CHAR")) tmpLt = tmpLt.Replace("CHAR", " CHAR");
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if (tmpLt.Contains("BYTE")) tmpLt = tmpLt.Replace("BYTE", " BYTE");
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return tmpLt;
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});
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colattr.DbDefautValue = trytb.Properties[p.Name].GetValue(Activator.CreateInstance(trytb.Type));
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if (colattr.DbDefautValue == null) colattr.DbDefautValue = tp?.defaultValue;
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if (colattr.IsNullable == false && colattr.DbDefautValue == null) {
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var consturctorType = p.PropertyType.GenericTypeArguments.FirstOrDefault() ?? p.PropertyType;
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colattr.DbDefautValue = Activator.CreateInstance(consturctorType);
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}
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if (colattr.IsIdentity && new[] {
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typeof(sbyte), typeof(short), typeof(int), typeof(long),
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typeof(byte), typeof(ushort), typeof(uint), typeof(ulong),
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typeof(double), typeof(float), typeof(decimal) }.Contains(p.PropertyType.GenericTypeArguments.FirstOrDefault() ?? p.PropertyType) == false)
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colattr.IsIdentity = false;
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var col = new ColumnInfo {
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Table = trytb,
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CsName = p.Name,
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CsType = p.PropertyType,
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Attribute = colattr
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};
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trytb.Columns.Add(colattr.Name, col);
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trytb.ColumnsByCs.Add(p.Name, col);
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}
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trytb.Primarys = trytb.Columns.Values.Where(a => a.Attribute.IsPrimary).ToArray();
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if (trytb.Primarys.Any() == false) {
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trytb.Primarys = trytb.Columns.Values.Where(a => a.Attribute.IsIdentity).ToArray();
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foreach (var col in trytb.Primarys)
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col.Attribute.IsPrimary = true;
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}
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tbc.TryAdd(entity, trytb);
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//virtual 属性延时加载，动态产生新的重写类
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if (common.CodeFirst.IsLazyLoading && propsLazy.Any()) {
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var trytbTypeName = trytb.Type.IsNested ? $"{trytb.Type.DeclaringType.Namespace}.{trytb.Type.DeclaringType.Name}.{trytb.Type.Name}" : $"{trytb.Type.Namespace}.{trytb.Type.Name}";
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if (trytb.Type.IsPublic == false && trytb.Type.IsNestedPublic == false) throw new Exception($"【延时加载】实体类型 {trytbTypeName} 必须声明为 public");
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var trytbTypeLazyName = $"FreeSqlLazyEntity__{Regex.Replace(trytbTypeName, @"[^\w\d]", "_")}";
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var overrieds = 0;
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var cscode = new StringBuilder();
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cscode.AppendLine("using System;")
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.AppendLine("using FreeSql.DataAnnotations;")
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.AppendLine("using System.Collections.Generic;")
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.AppendLine("using System.Linq;")
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.AppendLine("")
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.Append("public class ").Append(trytbTypeLazyName).Append(" : ").Append(trytbTypeName).AppendLine(" {")
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.AppendLine(" public IFreeSql __fsql_orm__ { get; set; }\r\n");
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foreach (var vp in propsLazy) {
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var propTypeName = vp.Item1.PropertyType.IsGenericType ?
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$"{vp.Item1.PropertyType.Namespace}.{vp.Item1.PropertyType.Name.Remove(vp.Item1.PropertyType.Name.IndexOf('`'))}<{string.Join(", ", vp.Item1.PropertyType.GenericTypeArguments.Select(a => a.IsNested ? $"{a.DeclaringType.Namespace}.{a.DeclaringType.Name}.{a.Name}" : $"{a.Namespace}.{a.Name}"))}>" :
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(vp.Item1.PropertyType.IsNested ? $"{vp.Item1.PropertyType.DeclaringType.Namespace}.{vp.Item1.PropertyType.DeclaringType.Name}.{vp.Item1.PropertyType.Name}" : $"{vp.Item1.PropertyType.Namespace}.{vp.Item1.PropertyType.Name}");
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//List 或 ICollection，一对多、多对多
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var propElementType = vp.Item1.PropertyType.GenericTypeArguments.FirstOrDefault() ?? vp.Item1.PropertyType.GetElementType();
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if (propElementType != null) {
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if (Activator.CreateInstance(vp.Item1.PropertyType) is ICollection == false) continue;
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if (trytb.Primarys.Any() == false) {
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//continue;
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throw new Exception($"【延时加载】功能发生错误，导航属性 {trytb.Type.FullName}.{vp.Item1.Name} 类型不正确，或者实体类型 {vp.Item1.PropertyType.FullName} 缺少主键标识");
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throw new Exception($"【延时加载】导航属性 {vp.Item1.Name} 解析错误，实体类型 {trytbTypeName} 缺少主键标识，[Column(IsPrimary = true)]");
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}
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var tbref = propElementType == trytb.Type ? trytb : GetTableByEntity(propElementType, common); //可能是父子关系
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if (tbref == null) continue;
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var isManyToMany = propElementType != trytb.Type &&
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tbref.Properties.Where(z => (z.Value.PropertyType.GenericTypeArguments.FirstOrDefault() == trytb.Type || z.Value.PropertyType.GetElementType() == trytb.Type) &&
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vp.Item1.Name.EndsWith($"{z.Key}s", StringComparison.CurrentCultureIgnoreCase) &&
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z.Key.EndsWith($"{trytb.CsName}s", StringComparison.CurrentCultureIgnoreCase) &&
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Activator.CreateInstance(z.Value.PropertyType) is ICollection).Any();
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//中间表怎么查询
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if (isManyToMany) continue;
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var refcols = tbref.Properties.Where(z => z.Value.PropertyType == trytb.Type);
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var refprop = refcols.Count() == 1 ? refcols.First().Value : null;
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var lmbdWhere = new StringBuilder();
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var vpcols = new ColumnInfo[pktb.Primarys.Length];
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for (var a = 0; a < pktb.Primarys.Length; a++) {
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if (trytb.ColumnsByCs.TryGetValue($"{vp.Item1.Name}{pktb.Primarys[a].CsName}", out var trycol) == false && //骆峰命名
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trytb.ColumnsByCs.TryGetValue($"{vp.Item1.Name}_{pktb.Primarys[a].CsName}", out trycol) == false //下划线命名
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var vpcols = new ColumnInfo[trytb.Primarys.Length];
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for (var a = 0; a < trytb.Primarys.Length; a++) {
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var findtrytbPkCsName = trytb.Primarys[a].CsName.TrimStart('_');
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if (findtrytbPkCsName.StartsWith(trytb.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtrytbPkCsName = findtrytbPkCsName.Substring(trytb.Type.Name.Length).TrimStart('_');
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var findtrytb = vp.Item1.Name;
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if (findtrytb.EndsWith(tbref.CsName + "s")) findtrytb = findtrytb.Substring(0, findtrytb.Length - tbref.CsName.Length - 1);
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findtrytb += trytb.CsName;
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if (tbref.ColumnsByCs.TryGetValue($"{findtrytb}{findtrytbPkCsName}", out var trycol) == false && //骆峰命名
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tbref.ColumnsByCs.TryGetValue($"{findtrytb}_{findtrytbPkCsName}", out trycol) == false //下划线命名
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) {
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pktb = null;
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throw new Exception($"【延时加载】功能发生错误，导航属性 {trytb.Type.FullName}.{vp.Item1.Name} 没有找到对应的字段 {vp.Item1.Name}{pktb.Primarys[a].CsName} 或 {vp.Item1.Name}_{pktb.Primarys[a].CsName}");
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//break;
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if (refprop != null &&
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tbref.ColumnsByCs.TryGetValue($"{refprop.Name}{findtrytbPkCsName}", out trycol) == false && //骆峰命名
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tbref.ColumnsByCs.TryGetValue($"{refprop.Name}_{findtrytbPkCsName}", out trycol) == false) //下划线命名
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{
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}
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if (trycol != null && trycol.CsType != tbref.Primarys[a].CsType)
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throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，{trytb.CsName}.{trytb.Primarys[a].CsName} 和 {tbref.CsName}.{trycol.CsName} 类型不一致");
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if (trycol == null)
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throw new Exception($"【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}");
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}
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if (a > 0) lmbdWhere.Append(" && ");
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lmbdWhere.Append("a.").Append(pktb.Primarys[a].CsName).Append(" == this.").Append(trycol.CsName);
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}
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if (pktb == null) continue;
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lmbdWhere.Append("a.").Append(trycol.CsName).Append(" == this.").Append(trytb.Primarys[a].CsName);
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cscode.Append(" public override ").Append(vp.Item1.PropertyType.FullName.Replace("+", ".")).Append(" ").Append(vp.Item1.Name).AppendLine(" {");
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if (refprop == null) {
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var findtrytbName = trycol.CsName;
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if (findtrytbName.EndsWith(trytb.Primarys.First().CsName)) {
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findtrytbName = findtrytbName.Remove(findtrytbName.Length - trytb.Primarys.First().CsName.Length).TrimEnd('_');
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if (tbref.Properties.TryGetValue(findtrytbName, out refprop) && refprop.PropertyType != trytb.Type)
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refprop = null;
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}
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}
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}
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cscode.Append(" private bool __lazy__").Append(vp.Item1.Name).AppendLine(" = false;")
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.Append(" public override ").Append(propTypeName).Append(" ").Append(vp.Item1.Name).AppendLine(" {");
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if (vp.Item2) { //get 重写
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cscode.Append(" get => base.").Append(vp.Item1.Name)
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.Append(" ?? (base.").Append(vp.Item1.Name)
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.Append(" = __fsql_orm__.Select<").Append(vp.Item1.PropertyType.FullName.Replace("+", ".")).Append(">().Where(a => ")
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.Append(lmbdWhere.ToString())
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.Append(").ToOne()").AppendLine(");");
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cscode.Append(" get {\r\n")
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.Append(" if (base.").Append(vp.Item1.Name).Append(" == null && __lazy__").Append(vp.Item1.Name).AppendLine(" == false) {")
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.Append(" base.").Append(vp.Item1.Name).Append(" = __fsql_orm__.Select<").Append(propElementType.IsNested ? $"{propElementType.DeclaringType.Namespace}.{propElementType.DeclaringType.Name}.{propElementType.Name}" : $"{propElementType.Namespace}.{propElementType.Name}").Append(">().Where(a => ").Append(lmbdWhere.ToString()).AppendLine(").ToList();");
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if (refprop != null) {
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cscode.Append(" foreach (var loc1 in base.").Append(vp.Item1.Name).AppendLine(")")
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.Append(" loc1.").Append(refprop.Name).AppendLine(" = this;");
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}
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cscode.Append(" __lazy__").Append(vp.Item1.Name).AppendLine(" = true;")
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.Append(" }\r\n")
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.Append(" return base.").Append(vp.Item1.Name).AppendLine(";")
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.Append(" }\r\n");
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}
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if (vp.Item3) { //set 重写
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cscode.Append(" set => base.").Append(vp.Item1.Name).AppendLine(" = value;");
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}
|
||||
cscode.AppendLine(" }");
|
||||
++overrieds;
|
||||
}
|
||||
if (overrieds > 0) {
|
||||
cscode.AppendLine("}");
|
||||
var assemly = Generator.TemplateEngin._compiler.Value.CompileCode(cscode.ToString());
|
||||
var type = assemly.DefinedTypes.Where(a => a.FullName.EndsWith($"FreeSqlOverrideLazyEntity{trytb.Type.Name}")).FirstOrDefault();
|
||||
trytb.TypeLazy = type;
|
||||
trytb.TypeLazySetOrm = type.GetProperty("__fsql_orm__").GetSetMethod();
|
||||
|
||||
} 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
|
||||
if (tbref == null) continue;
|
||||
if (tbref.Primarys.Any() == false) {
|
||||
//continue;
|
||||
throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，实体类型 {propTypeName} 缺少主键标识，[Column(IsPrimary = true)]");
|
||||
}
|
||||
var isOnoToOne = vp.Item1.PropertyType != trytb.Type &&
|
||||
tbref.Properties.Where(z => z.Value.PropertyType == trytb.Type).Any() &&
|
||||
tbref.Primarys.Length == trytb.Primarys.Length &&
|
||||
string.Join(",", tbref.Primarys.Select(a => a.CsType.FullName)) == string.Join(",", trytb.Primarys.Select(a => a.CsType.FullName));
|
||||
var lmbdWhere = new StringBuilder();
|
||||
var vpcols = new ColumnInfo[tbref.Primarys.Length];
|
||||
for (var a = 0; a < tbref.Primarys.Length; a++) {
|
||||
var findtbrefPkCsName = tbref.Primarys[a].CsName.TrimStart('_');
|
||||
if (findtbrefPkCsName.StartsWith(tbref.Type.Name, StringComparison.CurrentCultureIgnoreCase)) findtbrefPkCsName = findtbrefPkCsName.Substring(tbref.Type.Name.Length).TrimStart('_');
|
||||
if (trytb.ColumnsByCs.TryGetValue($"{vp.Item1.Name}{findtbrefPkCsName}", out var trycol) == false && //骆峰命名
|
||||
trytb.ColumnsByCs.TryGetValue($"{vp.Item1.Name}_{findtbrefPkCsName}", out trycol) == false //下划线命名
|
||||
) {
|
||||
//一对一，主键与主键查找
|
||||
if (isOnoToOne) {
|
||||
var trytbpks = trytb.Primarys.Where(z => z.CsType == tbref.Primarys[a].CsType); //一对一，按类型
|
||||
if (trytbpks.Count() == 1) trycol = trytbpks.First();
|
||||
else {
|
||||
trytbpks = trytb.Primarys.Where(z => string.Compare(z.CsName, tbref.Primarys[a].CsName, true) == 0); //一对一，按主键名相同
|
||||
if (trytbpks.Count() == 1) trycol = trytbpks.First();
|
||||
else {
|
||||
trytbpks = trytb.Primarys.Where(z => string.Compare(z.CsName, $"{tbref.CsName}{tbref.Primarys[a].CsName}", true) == 0); //一对一，主键名 = 表+主键名
|
||||
if (trytbpks.Count() == 1) trycol = trytbpks.First();
|
||||
else {
|
||||
trytbpks = trytb.Primarys.Where(z => string.Compare(z.CsName, $"{tbref.CsName}_{tbref.Primarys[a].CsName}", true) == 0); //一对一，主键名 = 表+_主键名
|
||||
if (trytbpks.Count() == 1) trycol = trytbpks.First();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (trycol != null && trycol.CsType != tbref.Primarys[a].CsType)
|
||||
throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 解析错误，{trytb.CsName}.{trycol.CsName} 和 {tbref.CsName}.{tbref.Primarys[a].CsName} 类型不一致");
|
||||
if (trycol == null)
|
||||
throw new Exception($"【延时加载】导航属性 {trytbTypeName}.{vp.Item1.Name} 没有找到对应的字段，如：{vp.Item1.Name}{findtbrefPkCsName}、{vp.Item1.Name}_{findtbrefPkCsName}");
|
||||
}
|
||||
if (a > 0) lmbdWhere.Append(" && ");
|
||||
lmbdWhere.Append("a.").Append(tbref.Primarys[a].CsName).Append(" == this.").Append(trycol.CsName);
|
||||
}
|
||||
|
||||
cscode.Append(" private bool __lazy__").Append(vp.Item1.Name).AppendLine(" = false;")
|
||||
.Append(" public override ").Append(propTypeName).Append(" ").Append(vp.Item1.Name).AppendLine(" {");
|
||||
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(propTypeName).Append(">().Where(a => ").Append(lmbdWhere.ToString()).AppendLine(").ToOne();")
|
||||
.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(" }");
|
||||
|
||||
}
|
||||
++overrieds;
|
||||
}
|
||||
return trytb;
|
||||
});
|
||||
if (overrieds > 0) {
|
||||
cscode.AppendLine("}");
|
||||
var assemly = Generator.TemplateEngin._compiler.Value.CompileCode(cscode.ToString());
|
||||
var type = assemly.DefinedTypes.Where(a => a.FullName.EndsWith(trytbTypeLazyName)).FirstOrDefault();
|
||||
trytb.TypeLazy = type;
|
||||
trytb.TypeLazySetOrm = type.GetProperty("__fsql_orm__").GetSetMethod();
|
||||
}
|
||||
}
|
||||
|
||||
return tbc.TryGetValue(entity, out var trytb2) ? trytb2 : trytb;
|
||||
}
|
||||
|
||||
internal static T[] GetDbParamtersByObject<T>(string sql, object obj, string paramPrefix, Func<string, Type, object, T> constructorParamter) {
|
||||
|
||||
Reference in New Issue
Block a user