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#747 add datatable api with basic table functions, send and recieve m…
…odel, filter and orderby
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,264 @@ | ||
| using BExIS.Dlm.Entities.DataStructure; | ||
| using BExIS.UI.Models; | ||
| using BExIS.Utils.NH.Querying; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
| using Telerik.Web.Mvc; | ||
| using DataType = BExIS.Utils.NH.Querying.DataType; | ||
|
|
||
| namespace BExIS.UI.Helpers | ||
| { | ||
| public class DataTableHelper | ||
| { | ||
| #region filter | ||
|
|
||
| // currently the primary data is loaded from the matView, for whatever reason the variables are | ||
| // defined with id as column name and not with the direct name of the columns. | ||
| // Therefore, there must be a transformation so that the query matches the columns. | ||
| // e.g.ScientificName - var61, varDic[ScientificName] = var61 | ||
| public static FilterExpression ConvertTo(List<DataTableFilter> filters, Dictionary<string, string> varDic) | ||
| { | ||
| FilterExpression filter = null; | ||
| FilterExpression tmpFilter = null; | ||
|
|
||
| foreach (var f in filters) | ||
| { | ||
| FilterExpression fe = convert(f, varDic[f.Column]); | ||
| if (fe != null) | ||
| { | ||
| if (filter != null) | ||
| { | ||
| tmpFilter = filter; | ||
| filter = BinaryFilterExpression.And(tmpFilter, fe); | ||
| } | ||
| else | ||
| { | ||
| filter = fe; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return filter; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Convert a FilterDesriptor to a FilterExpression | ||
| /// </summary> | ||
| /// <param name="filterDescriptor"></param> | ||
| /// <returns></returns> | ||
| private static FilterExpression convert(DataTableFilter filterDescriptor, string label) | ||
| { | ||
| var fd = filterDescriptor; | ||
|
|
||
|
|
||
| switch (fd.FilterBy) | ||
| { | ||
| case DataTableFilterType.c: | ||
| { | ||
| return new FilterStringItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.String, Name = label } | ||
| , | ||
| Operator = StringOperator.Operation.Contains | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| case DataTableFilterType.nc: | ||
| { | ||
| return null; | ||
| } | ||
|
|
||
| case DataTableFilterType.ew: | ||
| { | ||
| return new FilterStringItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.String, Name = label } | ||
| , | ||
| Operator = StringOperator.Operation.EndsWith | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| case DataTableFilterType.sw: | ||
| { | ||
| return new FilterStringItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.String, Name = label } | ||
| , | ||
| Operator = StringOperator.Operation.StartsWith | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| case DataTableFilterType.ie: // can be a string or a number | ||
| { | ||
| int convertedInt; | ||
| double convertedDouble; | ||
| DateTime convertedDateTime; | ||
| if (int.TryParse(fd.Value,out convertedInt)) | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Ineteger, Name = label }, | ||
| Operator = NumberOperator.Operation.Equals, | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| else | ||
| if (double.TryParse(fd.Value, out convertedDouble)) | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Double, Name = label }, | ||
| Operator = NumberOperator.Operation.Equals, | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| else | ||
| if (DateTime.TryParse(fd.Value,out convertedDateTime)) | ||
| { | ||
| return new FilterDateTimeItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.DateTime, Name = label }, | ||
| Operator = DateTimeOperator.Operation.Equals, | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
|
|
||
| return new FilterStringItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.String, Name = label }, | ||
| Operator = StringOperator.Operation.Equals, | ||
| Value = fd.Value | ||
|
|
||
| }; | ||
| } | ||
| case DataTableFilterType.ne: | ||
| { | ||
| return null; | ||
| } | ||
| case DataTableFilterType.gt: | ||
| { | ||
| try | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Ineteger, Name = label } | ||
| , | ||
| Operator = NumberOperator.Operation.GreaterThan | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| throw new Exception("Value is not a number"); | ||
| } | ||
| } | ||
|
|
||
| case DataTableFilterType.gte: | ||
| { | ||
| try | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Ineteger, Name = label } | ||
| , | ||
| Operator = NumberOperator.Operation.GreaterThanOrEqual | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| throw new Exception("Value is not a number"); | ||
| } | ||
| } | ||
| case DataTableFilterType.lt: | ||
| { | ||
| try | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Ineteger, Name = label } | ||
| , | ||
| Operator = NumberOperator.Operation.LessThan | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| throw new Exception("Value is not a number"); | ||
| } | ||
| } | ||
|
|
||
| case DataTableFilterType.lte: | ||
| { | ||
| try | ||
| { | ||
| return new FilterNumberItemExpression() | ||
| { | ||
| Field = new Field() { DataType = DataType.Ineteger, Name = label } | ||
| , | ||
| Operator = NumberOperator.Operation.LessThanOrEqual | ||
| , | ||
| Value = fd.Value | ||
| }; | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| throw new Exception("Value is not a number"); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
| #endregion | ||
|
|
||
| #region orderby | ||
|
|
||
| // currently the primary data is loaded from the matView, for whatever reason the variables are | ||
| // defined with id as column name and not with the direct name of the columns. | ||
| // Therefore, there must be a transformation so that the query matches the columns. | ||
| // e.g.ScientificName - var61, varDic[ScientificName] = var61 | ||
| public static OrderByExpression ConvertTo(List<DataTableOrderBy> sortDescriptors, Dictionary<string, string> varDic) | ||
| { | ||
| if (sortDescriptors == null || sortDescriptors.Count == 0) return null; | ||
|
|
||
| List<OrderItemExpression> oieList = new List<OrderItemExpression>(); | ||
| foreach (var sort in sortDescriptors) | ||
| { | ||
| string name = varDic[sort.Column]; | ||
| SortDirection sortDirection = SortDirection.Ascending; | ||
|
|
||
| if (sort.Direction == DataTableOrderType.asc) sortDirection = SortDirection.Ascending; | ||
| if (sort.Direction == DataTableOrderType.desc) sortDirection = SortDirection.Descending; | ||
|
|
||
| oieList.Add(new OrderItemExpression(name, sortDirection)); | ||
| } | ||
|
|
||
| return new OrderByExpression(oieList); | ||
| } | ||
|
|
||
| #endregion | ||
|
|
||
| public static Dictionary<string, string> variablesAsKVP(ICollection<VariableInstance> variables) | ||
| { | ||
| Dictionary<string, string> tmp = new Dictionary<string, string>(); | ||
|
|
||
| foreach (var item in variables) | ||
| { | ||
| tmp.Add(item.Label, "var"+item.Id); | ||
| } | ||
|
|
||
| return tmp; | ||
| } | ||
|
|
||
| } | ||
| } |
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