First idea of ResultModel
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@@ -80,32 +80,7 @@ namespace Repositories
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public async Task<DataResult<List<IEntityClass>>> GetFilteredData<T>(List<Expression> expressions, long skip = 0, long take = -1) where T : IEntityClass
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{
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var where = FilterLinq<T>.GetWherePredicate(wherefield, wherefieldvalue).Compile();
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items = await _dbContext.Address.Where((Expression<Func<Address, bool>>)where).ToListAsync();
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var result = new DataResult<List<IEntityClass>>();
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if (typeof(T).Equals(typeof(Address)))
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{
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Expression combined = null;
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foreach (var exp in expressions)
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{
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if (combined == null)
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{
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combined = exp;
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}
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else
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{
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combined = Expression.Or(combined, exp);
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}
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}
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ParameterExpression pe = Expression.Parameter(typeof(T), typeof(T).Name);
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combined = Expression.Lambda<Func<T, Boolean>>(combined, new ParameterExpression[] { pe });
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//var addressFound = await _dbContext.Address.Where((Expression<Func<Address, bool>>)combined).ToListAsync();
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var addressFound = await _dbContext.Address.Where(a => a.City == "Augsburg" | a.City == "München").ToListAsync();
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result.Data = new List<IEntityClass>(addressFound.Cast<IEntityClass>());
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}
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return result;
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throw new NotImplementedException();
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}
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}
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@@ -113,39 +88,7 @@ namespace Repositories
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{
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public static Expression<Func<T, Boolean>> GetWherePredicate(string whereFieldList, string whereFieldValues)
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{
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//the 'IN' parameter for expression ie T=> condition
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ParameterExpression pe = Expression.Parameter(typeof(T), typeof(T).Name);
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//combine them with and 1=1 Like no expression
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Expression combined = null;
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if (whereFieldList != null)
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{
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string[] field = whereFieldList.Split(';');
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string[] fieldValue = whereFieldValues.Split(';');
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for (int i = 0; i < field.Count(); i++)
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{
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//Expression for accessing Fields name property
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Expression columnNameProperty = Expression.Property(pe, field[i]);
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//the name constant to match
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Expression columnValue = Expression.Constant(fieldValue[i]);
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//the first expression: PatientantLastName = ?
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Expression e1 = Expression.Equal(columnNameProperty, columnValue);
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if (combined == null)
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{
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combined = e1;
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}
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else
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{
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combined = Expression.And(combined, e1);
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}
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}
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}
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//create and return the predicate
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return Expression.Lambda<Func<T, Boolean>>(combined, new ParameterExpression[] { pe });
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throw new NotImplementedException();
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}
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}
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}
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