using System;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
namespace SqlSugar
{
public class BaseResolve
{
protected Expression Expression { get; set; }
protected Expression ExactExpression { get; set; }
public ExpressionContext Context { get; set; }
public bool? IsLeft { get; set; }
public int ContentIndex { get { return this.Context.Index; } }
public int Index { get; set; }
public ExpressionParameter BaseParameter { get; set; }
private BaseResolve()
{
}
public BaseResolve(ExpressionParameter parameter)
{
this.Expression = parameter.CurrentExpression;
this.Context = parameter.Context;
this.BaseParameter = parameter;
}
public BaseResolve Start()
{
Context.Index++;
var expression = this.Expression;
var parameter = new ExpressionParameter
{
Context = this.Context,
CurrentExpression = expression,
IsLeft = this.IsLeft,
BaseExpression = this.ExactExpression,
BaseParameter = this.BaseParameter,
Index = Context.Index
};
if (expression is LambdaExpression)
{
return new LambdaExpressionResolve(parameter);
}
else if (expression is BinaryExpression)
{
return new BinaryExpressionResolve(parameter);
}
else if (expression is BlockExpression)
{
Check.ThrowNotSupportedException("BlockExpression");
}
else if (expression is ConditionalExpression)
{
return new ConditionalExpressionResolve(parameter);
}
else if (expression is MethodCallExpression)
{
return new MethodCallExpressionResolve(parameter);
}
else if (expression is MemberExpression && ((MemberExpression)expression).Expression == null)
{
return new MemberNoExpressionResolve(parameter);
}
else if (expression is MemberExpression && ((MemberExpression)expression).Expression.NodeType == ExpressionType.Constant)
{
return new MemberConstExpressionResolve(parameter);
}
else if (expression is MemberExpression && ((MemberExpression)expression).Expression.NodeType == ExpressionType.New)
{
return new MemberNewExpressionResolve(parameter);
}
else if (expression is ConstantExpression)
{
return new ConstantExpressionResolve(parameter);
}
else if (expression is MemberExpression)
{
return new MemberExpressionResolve(parameter);
}
else if (expression is UnaryExpression)
{
return new UnaryExpressionResolve(parameter);
}
else if (expression is MemberInitExpression)
{
return new MemberInitExpressionResolve(parameter);
}
else if (expression is NewExpression)
{
return new NewExpressionResolve(parameter);
}
else if (expression is NewArrayExpression)
{
return new NewArrayExpessionResolve(parameter);
}
else if (expression is ParameterExpression)
{
return new TypeParameterExpressionReolve(parameter);
}
else if (expression != null && expression.NodeType.IsIn(ExpressionType.NewArrayBounds))
{
Check.ThrowNotSupportedException("ExpressionType.NewArrayBounds");
}
return null;
}
protected void AppendMember(ExpressionParameter parameter, bool? isLeft, object appendValue)
{
Context.ParameterIndex++;
if (isLeft == true)
{
appendValue += ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index;
}
if (this.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, appendValue.ObjToString());
}
else
{
this.Context.Result.Append(appendValue);
}
}
protected void AppendValue(ExpressionParameter parameter, bool? isLeft, object value)
{
if (parameter.BaseExpression is BinaryExpression || parameter.BaseExpression == null)
{
var oppoSiteExpression = isLeft == true ? parameter.BaseParameter.RightExpression : parameter.BaseParameter.LeftExpression;
if (parameter.CurrentExpression is MethodCallExpression)
{
var appendValue = value;
if (this.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, appendValue.ObjToString());
}
else
{
this.Context.Result.Append(appendValue);
}
this.AppendOpreator(parameter, isLeft);
}
else if (oppoSiteExpression is MemberExpression)
{
var appendValue = Context.SqlParameterKeyWord
+ ((MemberExpression)oppoSiteExpression).Member.Name
+ Context.ParameterIndex;
if (value.ObjToString() != "NULL" && !parameter.ValueIsNull)
{
this.Context.Parameters.Add(new SugarParameter(appendValue, value));
}
else
{
appendValue = value.ObjToString();
}
Context.ParameterIndex++;
appendValue = string.Format(" {0} ", appendValue);
if (isLeft == true)
{
appendValue += ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index;
}
if (this.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, appendValue);
}
else
{
this.Context.Result.Append(appendValue);
}
}
else if ((oppoSiteExpression is UnaryExpression && (oppoSiteExpression as UnaryExpression).Operand is MemberExpression)) {
var appendValue = Context.SqlParameterKeyWord
+ ((MemberExpression)(oppoSiteExpression as UnaryExpression).Operand).Member.Name
+ Context.ParameterIndex;
if (value.ObjToString() != "NULL" && !parameter.ValueIsNull)
{
this.Context.Parameters.Add(new SugarParameter(appendValue, value));
}
else
{
appendValue = value.ObjToString();
}
Context.ParameterIndex++;
appendValue = string.Format(" {0} ", appendValue);
if (isLeft == true)
{
appendValue += ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index;
}
if (this.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, appendValue);
}
else
{
this.Context.Result.Append(appendValue);
}
}
else
{
var appendValue = this.Context.SqlParameterKeyWord + ExpressionConst.Const + Context.ParameterIndex;
Context.ParameterIndex++;
if (value != null && value.GetType().IsEnum())
{
value = Convert.ToInt64(value);
}
this.Context.Parameters.Add(new SugarParameter(appendValue, value));
appendValue = string.Format(" {0} ", appendValue);
if (isLeft == true)
{
appendValue += ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index;
}
if (this.Context.Result.Contains(ExpressionConst.FormatSymbol))
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, appendValue);
}
else
{
this.Context.Result.Append(appendValue);
}
}
}
}
protected void AppendOpreator(ExpressionParameter parameter, bool? isLeft)
{
if (isLeft == true)
{
this.Context.Result.Append(" " + ExpressionConst.ExpressionReplace + parameter.BaseParameter.Index);
}
}
protected string AppendParameter(object paramterValue)
{
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++; ;
this.Context.Parameters.Add(new SugarParameter(parameterName, paramterValue));
return parameterName;
}
protected void AppendNot(object Value)
{
var isAppend = !this.Context.Result.Contains(ExpressionConst.FormatSymbol);
var lastCharIsSpace = this.Context.Result.LastCharIsSpace;
if (isAppend)
{
this.Context.Result.Append(lastCharIsSpace?"NOT":" NOT");
}
else
{
this.Context.Result.Replace(ExpressionConst.FormatSymbol, "NOT");
}
}
protected MethodCallExpressionArgs GetMethodCallArgs(ExpressionParameter parameter, Expression item)
{
var newContext = this.Context.GetCopyContext();
newContext.MappingColumns = this.Context.MappingColumns;
newContext.MappingTables = this.Context.MappingTables;
newContext.IgnoreComumnList = this.Context.IgnoreComumnList;
newContext.SqlFuncServices = this.Context.SqlFuncServices;
newContext.Resolve(item, this.Context.IsJoin ? ResolveExpressType.WhereMultiple : ResolveExpressType.WhereSingle);
this.Context.Index = newContext.Index;
this.Context.ParameterIndex = newContext.ParameterIndex;
if (newContext.Parameters.HasValue())
{
this.Context.Parameters.AddRange(newContext.Parameters);
}
if (newContext.SingleTableNameSubqueryShortName.HasValue())
{
this.Context.SingleTableNameSubqueryShortName = newContext.SingleTableNameSubqueryShortName;
}
var methodCallExpressionArgs = new MethodCallExpressionArgs
{
IsMember = true,
MemberName = newContext.Result.GetResultString()
};
return methodCallExpressionArgs;
}
protected string GetNewExpressionValue(Expression item)
{
var newContext = this.Context.GetCopyContext();
newContext.Resolve(item, this.Context.IsJoin ? ResolveExpressType.WhereMultiple : ResolveExpressType.WhereSingle);
this.Context.Index = newContext.Index;
this.Context.ParameterIndex = newContext.ParameterIndex;
if (newContext.Parameters.HasValue())
{
this.Context.Parameters.AddRange(newContext.Parameters);
}
return newContext.Result.GetResultString();
}
protected void ResolveNewExpressions(ExpressionParameter parameter, Expression item, string asName)
{
if (item is ConstantExpression)
{
this.Expression = item;
this.Start();
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++;
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
}
else if ((item is MemberExpression) && ((MemberExpression)item).Expression == null)
{
var paramterValue = ExpressionTool.GetPropertyValue(item as MemberExpression);
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++;
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, paramterValue));
}
else if ((item is MemberExpression) && ((MemberExpression)item).Expression.NodeType == ExpressionType.Constant)
{
this.Expression = item;
this.Start();
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++;
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
}
else if (item is MemberExpression)
{
if (!this.Context.Result.IsLockCurrentParameter)
{
this.Context.Result.CurrentParameter = parameter;
this.Context.Result.IsLockCurrentParameter = true;
parameter.IsAppendTempDate();
this.Expression = item;
this.Start();
parameter.IsAppendResult();
this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
this.Context.Result.CurrentParameter = null;
}
}
else if (item is UnaryExpression && ((UnaryExpression)item).Operand is MemberExpression)
{
if (!this.Context.Result.IsLockCurrentParameter)
{
var expression = ((UnaryExpression)item).Operand as MemberExpression;
if (expression.Expression == null)
{
this.Context.Result.CurrentParameter = parameter;
this.Context.Result.IsLockCurrentParameter = true;
parameter.IsAppendTempDate();
this.Expression = item;
this.Start();
parameter.IsAppendResult();
this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
this.Context.Result.CurrentParameter = null;
}
else if (expression.Expression is ConstantExpression)
{
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++;
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, ExpressionTool.GetMemberValue(expression.Member, expression)));
}
else
{
this.Context.Result.CurrentParameter = parameter;
this.Context.Result.IsLockCurrentParameter = true;
parameter.IsAppendTempDate();
this.Expression = item;
this.Start();
parameter.IsAppendResult();
this.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
this.Context.Result.CurrentParameter = null;
}
}
}
else if (item is UnaryExpression && ((UnaryExpression)item).Operand is ConstantExpression)
{
if (!this.Context.Result.IsLockCurrentParameter)
{
this.Expression = ((UnaryExpression)item).Operand;
this.Start();
var parameterName = this.Context.SqlParameterKeyWord + "constant" + this.Context.ParameterIndex;
this.Context.ParameterIndex++;
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
}
}
else if (item is BinaryExpression)
{
if (!this.Context.Result.IsLockCurrentParameter)
{
var newContext = this.Context.GetCopyContextWithMapping();
var resolveExpressType = this.Context.IsSingle ? ResolveExpressType.WhereSingle : ResolveExpressType.WhereMultiple;
newContext.Resolve(item, resolveExpressType);
this.Context.Index = newContext.Index;
this.Context.ParameterIndex = newContext.ParameterIndex;
if (newContext.Parameters.HasValue())
{
this.Context.Parameters.AddRange(newContext.Parameters);
}
this.Context.Result.Append(this.Context.GetAsString(asName, newContext.Result.GetString()));
this.Context.Result.CurrentParameter = null;
}
}
else if (item.Type.IsClass())
{
this.Expression = item;
this.Start();
var shortName = parameter.CommonTempData;
var listProperties = item.Type.GetProperties().Cast<PropertyInfo>().ToList();
foreach (var property in listProperties)
{
var hasIgnore = this.Context.IgnoreComumnList != null && this.Context.IgnoreComumnList.Any(it => it.EntityName.Equals(item.Type.Name, StringComparison.CurrentCultureIgnoreCase) && it.PropertyName.Equals(property.Name, StringComparison.CurrentCultureIgnoreCase));
if (hasIgnore)
{
continue;
}
if (property.PropertyType.IsClass())
{
}
else
{
var fieldName = property.Name;
var mappingInfo = this.Context.MappingColumns.FirstOrDefault(it => it.EntityName == item.Type.Name && it.PropertyName.Equals(fieldName, StringComparison.CurrentCultureIgnoreCase));
if (mappingInfo.HasValue()) {
fieldName = mappingInfo.DbColumnName;
}
asName = this.Context.GetTranslationText(item.Type.Name + "." + fieldName);
var columnName = property.Name;
if (Context.IsJoin)
{
this.Context.Result.Append(Context.GetAsString(asName, columnName, shortName.ObjToString()));
}
else
{
this.Context.Result.Append(Context.GetAsString(asName, columnName));
}
}
}
}
else if (item is MethodCallExpression|| item is UnaryExpression)
{
this.Expression = item;
this.Start();
parameter.Context.Result.Append(this.Context.GetAsString(asName, parameter.CommonTempData.ObjToString()));
}
else
{
Check.ThrowNotSupportedException(item.GetType().Name);
}
}
}
}