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Version 2.0
This commit is contained in:
Biarity
@@ -6,9 +6,12 @@ namespace Sieve.Services
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{
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public interface ISieveProcessor
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{
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IQueryable<TEntity> ApplyAll<TEntity>(ISieveModel<IFilterTerm, ISortTerm> model, IQueryable<TEntity> source, object[] dataForCustomMethods = null);
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IQueryable<TEntity> ApplySorting<TEntity>(ISieveModel<IFilterTerm, ISortTerm> model, IQueryable<TEntity> result, object[] dataForCustomMethods = null);
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IQueryable<TEntity> ApplyFiltering<TEntity>(ISieveModel<IFilterTerm, ISortTerm> model, IQueryable<TEntity> result, object[] dataForCustomMethods = null);
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IQueryable<TEntity> ApplyPagination<TEntity>(ISieveModel<IFilterTerm, ISortTerm> model, IQueryable<TEntity> result);
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IQueryable<TEntity> Apply<TEntity>(
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ISieveModel<IFilterTerm, ISortTerm> model,
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IQueryable<TEntity> source,
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object[] dataForCustomMethods = null,
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bool applyFiltering = true,
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bool applySorting = true,
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bool applyPagination = true);
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}
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}
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@@ -62,239 +62,192 @@ namespace Sieve.Services
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/// <param name="model">An instance of ISieveModel</param>
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/// <param name="source">Data source</param>
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/// <param name="dataForCustomMethods">Additional data that will be passed down to custom methods</param>
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/// <param name="applyFiltering">Should the data be filtered? Defaults to true.</param>
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/// <param name="applySorting">Should the data be sorted? Defaults to true.</param>
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/// <param name="applyPagination">Should the data be paginated? Defaults to true.</param>
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/// <returns>Returns a transformed version of `source`</returns>
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public IQueryable<TEntity> ApplyAll<TEntity>(
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public IQueryable<TEntity> Apply<TEntity>(
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ISieveModel<IFilterTerm, ISortTerm> model,
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IQueryable<TEntity> source,
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object[] dataForCustomMethods = null)
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object[] dataForCustomMethods = null,
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bool applyFiltering = true,
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bool applySorting = true,
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bool applyPagination = true)
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{
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var result = source;
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if (model == null)
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return result;
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// Filter
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result = ApplyFiltering(model, result, dataForCustomMethods);
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try
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{
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// Filter
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if (applyFiltering)
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result = ApplyFiltering(model, result, dataForCustomMethods);
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// Sort
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result = ApplySorting(model, result, dataForCustomMethods);
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// Sort
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if (applySorting)
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result = ApplySorting(model, result, dataForCustomMethods);
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// Paginate
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result = ApplyPagination(model, result);
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// Paginate
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if (applyPagination)
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result = ApplyPagination(model, result);
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return result;
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return result;
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}
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catch (Exception ex)
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{
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if (_options.Value.ThrowExceptions)
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{
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if (ex is SieveException)
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throw;
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throw new SieveException(ex.Message, ex);
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}
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else
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{
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return result;
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}
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}
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}
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/// <summary>
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/// Apply filtering parameters found in `model` to `source`
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/// </summary>
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/// <typeparam name="TEntity"></typeparam>
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/// <param name="model">An instance of ISieveModel</param>
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/// <param name="source">Data source</param>
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/// <param name="dataForCustomMethods">Additional data that will be passed down to custom methods</param>
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/// <returns>Returns a transformed version of `source`</returns>
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public IQueryable<TEntity> ApplyFiltering<TEntity>(
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private IQueryable<TEntity> ApplyFiltering<TEntity>(
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ISieveModel<IFilterTerm, ISortTerm> model,
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IQueryable<TEntity> result,
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object[] dataForCustomMethods = null)
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{
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try
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{
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if (model?.FiltersParsed == null)
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return result;
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foreach (var filterTerm in model.FiltersParsed)
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{
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var property = GetSieveProperty<TEntity>(false, true, filterTerm.Name);
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if (property != null)
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{
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var converter = TypeDescriptor.GetConverter(property.PropertyType);
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var parameter = Expression.Parameter(typeof(TEntity), "e");
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dynamic filterValue = Expression.Constant(
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converter.CanConvertFrom(typeof(string)) ?
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converter.ConvertFrom(filterTerm.Value) :
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Convert.ChangeType(filterTerm.Value, property.PropertyType));
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dynamic propertyValue = Expression.PropertyOrField(parameter, property.Name);
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if (filterTerm.OperatorIsCaseInsensitive)
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{
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propertyValue = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));
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filterValue = Expression.Call(filterValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));
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}
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Expression comparison;
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switch (filterTerm.OperatorParsed)
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{
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case FilterOperator.Equals:
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comparison = Expression.Equal(propertyValue, filterValue);
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break;
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case FilterOperator.NotEquals:
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comparison = Expression.NotEqual(propertyValue, filterValue);
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break;
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case FilterOperator.GreaterThan:
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comparison = Expression.GreaterThan(propertyValue, filterValue);
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break;
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case FilterOperator.LessThan:
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comparison = Expression.LessThan(propertyValue, filterValue);
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break;
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case FilterOperator.GreaterThanOrEqualTo:
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comparison = Expression.GreaterThanOrEqual(propertyValue, filterValue);
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break;
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case FilterOperator.LessThanOrEqualTo:
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comparison = Expression.LessThanOrEqual(propertyValue, filterValue);
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break;
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case FilterOperator.Contains:
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comparison = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "Contains" && m.GetParameters().Length == 1),
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filterValue);
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break;
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case FilterOperator.StartsWith:
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comparison = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "StartsWith" && m.GetParameters().Length == 1),
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filterValue); break;
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default:
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comparison = Expression.Equal(propertyValue, filterValue);
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break;
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}
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result = result.Where(Expression.Lambda<Func<TEntity, bool>>(
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comparison,
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parameter));
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}
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else
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{
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result = ApplyCustomMethod(result, filterTerm.Name, _customFilterMethods,
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new object[] {
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result,
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filterTerm.Operator,
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filterTerm.Value
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}, dataForCustomMethods);
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}
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}
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if (model?.FiltersParsed == null)
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return result;
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}
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catch (Exception ex)
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foreach (var filterTerm in model.FiltersParsed)
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{
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if (_options.Value.ThrowExceptions)
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var property = GetSieveProperty<TEntity>(false, true, filterTerm.Name);
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if (property != null)
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{
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if (ex is SieveException)
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throw;
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throw new SieveException(ex.Message, ex);
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var converter = TypeDescriptor.GetConverter(property.PropertyType);
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var parameter = Expression.Parameter(typeof(TEntity), "e");
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dynamic filterValue = Expression.Constant(
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converter.CanConvertFrom(typeof(string)) ?
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converter.ConvertFrom(filterTerm.Value) :
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Convert.ChangeType(filterTerm.Value, property.PropertyType));
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dynamic propertyValue = Expression.PropertyOrField(parameter, property.Name);
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if (filterTerm.OperatorIsCaseInsensitive)
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{
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propertyValue = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));
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filterValue = Expression.Call(filterValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));
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}
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Expression comparison;
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switch (filterTerm.OperatorParsed)
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{
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case FilterOperator.Equals:
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comparison = Expression.Equal(propertyValue, filterValue);
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break;
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case FilterOperator.NotEquals:
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comparison = Expression.NotEqual(propertyValue, filterValue);
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break;
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case FilterOperator.GreaterThan:
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comparison = Expression.GreaterThan(propertyValue, filterValue);
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break;
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case FilterOperator.LessThan:
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comparison = Expression.LessThan(propertyValue, filterValue);
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break;
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case FilterOperator.GreaterThanOrEqualTo:
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comparison = Expression.GreaterThanOrEqual(propertyValue, filterValue);
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break;
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case FilterOperator.LessThanOrEqualTo:
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comparison = Expression.LessThanOrEqual(propertyValue, filterValue);
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break;
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case FilterOperator.Contains:
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comparison = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "Contains" && m.GetParameters().Length == 1),
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filterValue);
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break;
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case FilterOperator.StartsWith:
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comparison = Expression.Call(propertyValue,
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typeof(string).GetMethods()
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.First(m => m.Name == "StartsWith" && m.GetParameters().Length == 1),
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filterValue); break;
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default:
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comparison = Expression.Equal(propertyValue, filterValue);
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break;
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}
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result = result.Where(Expression.Lambda<Func<TEntity, bool>>(
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comparison,
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parameter));
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}
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else
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{
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return result;
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result = ApplyCustomMethod(result, filterTerm.Name, _customFilterMethods,
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new object[] {
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result,
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filterTerm.Operator,
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filterTerm.Value
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}, dataForCustomMethods);
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}
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}
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return result;
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}
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/// <summary>
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/// Apply sorting parameters found in `model` to `source`
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/// </summary>
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/// <typeparam name="TEntity"></typeparam>
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/// <param name="model">An instance of ISieveModel</param>
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/// <param name="source">Data source</param>
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/// <param name="dataForCustomMethods">Additional data that will be passed down to custom methods</param>
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/// <returns>Returns a transformed version of `source`</returns>
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public IQueryable<TEntity> ApplySorting<TEntity>(
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private IQueryable<TEntity> ApplySorting<TEntity>(
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ISieveModel<IFilterTerm, ISortTerm> model,
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IQueryable<TEntity> result,
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object[] dataForCustomMethods = null)
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{
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try
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{
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if (model?.SortsParsed == null)
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return result;
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var useThenBy = false;
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foreach (var sortTerm in model.SortsParsed)
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{
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var property = GetSieveProperty<TEntity>(true, false, sortTerm.Name);
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if (property != null)
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{
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result = result.OrderByDynamic(property.Name, sortTerm.Descending, useThenBy);
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}
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else
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{
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result = ApplyCustomMethod(result, sortTerm.Name, _customSortMethods,
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new object[]
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{
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result,
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useThenBy,
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sortTerm.Descending
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}, dataForCustomMethods);
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}
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useThenBy = true;
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}
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if (model?.SortsParsed == null)
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return result;
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}
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catch (Exception ex)
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var useThenBy = false;
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foreach (var sortTerm in model.SortsParsed)
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{
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if (_options.Value.ThrowExceptions)
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var property = GetSieveProperty<TEntity>(true, false, sortTerm.Name);
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if (property != null)
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{
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if (ex is SieveException)
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throw;
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throw new SieveException(ex.Message, ex);
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result = result.OrderByDynamic(property.Name, sortTerm.Descending, useThenBy);
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}
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else
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{
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return result;
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result = ApplyCustomMethod(result, sortTerm.Name, _customSortMethods,
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new object[]
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{
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result,
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useThenBy,
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sortTerm.Descending
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}, dataForCustomMethods);
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}
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useThenBy = true;
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}
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return result;
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}
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/// <summary>
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/// Apply pagination parameters found in `model` to `source`
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/// </summary>
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/// <typeparam name="TEntity"></typeparam>
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/// <param name="model">An instance of ISieveModel</param>
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/// <param name="source">Data source</param>
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/// <param name="dataForCustomMethods">Additional data that will be passed down to custom methods</param>
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/// <returns>Returns a transformed version of `source`</returns>
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public IQueryable<TEntity> ApplyPagination<TEntity>(
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private IQueryable<TEntity> ApplyPagination<TEntity>(
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ISieveModel<IFilterTerm, ISortTerm> model,
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IQueryable<TEntity> result)
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{
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try
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{
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var page = model?.Page ?? 1;
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var pageSize = model?.PageSize ?? _options.Value.DefaultPageSize;
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var maxPageSize = _options.Value.MaxPageSize > 0 ? _options.Value.MaxPageSize : pageSize;
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var page = model?.Page ?? 1;
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var pageSize = model?.PageSize ?? _options.Value.DefaultPageSize;
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var maxPageSize = _options.Value.MaxPageSize > 0 ? _options.Value.MaxPageSize : pageSize;
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result = result.Skip((page - 1) * pageSize);
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result = result.Skip((page - 1) * pageSize);
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if (pageSize > 0)
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result = result.Take(Math.Min(pageSize, maxPageSize));
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if (pageSize > 0)
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result = result.Take(Math.Min(pageSize, maxPageSize));
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return result;
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}
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catch (Exception ex)
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{
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if (_options.Value.ThrowExceptions)
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{
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if (ex is SieveException)
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throw;
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throw new SieveException(ex.Message, ex);
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}
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else
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{
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return result;
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}
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}
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return result;
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}
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