72 lines
2.9 KiB
C#
72 lines
2.9 KiB
C#
using System.Collections.Generic;
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using System.Diagnostics;
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using System.Web.UI.WebControls;
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namespace System.Web.DynamicData.Util {
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internal class RouteParametersHelper {
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private static Parameter CreateParameter(string name, string value, MetaColumn configurationColumn) {
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var param = new Parameter() {
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Name = name,
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DefaultValue = value
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};
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DataSourceUtil.SetParameterTypeCodeAndDbType(param, configurationColumn);
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return param;
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}
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internal static IEnumerable<Parameter> GetColumnParameters(MetaTable table, string columnName) {
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if (String.IsNullOrEmpty(columnName)) {
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// If no column is specified, we're setting the primary key from the query string
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return GetPrimaryKeyParameters(table);
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} else {
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var column = table.GetColumn(columnName);
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var fkColumn = column as MetaForeignKeyColumn;
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if (fkColumn != null) {
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// Handle the case where we're setting one of our foreign keys from the query string
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return GetForeignKeyParameters(fkColumn);
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} else {
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// Handle other columns (e.g. booleans)
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return GetRegularColumnParameters(column);
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}
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}
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}
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internal static IEnumerable<Parameter> GetForeignKeyParameters(MetaForeignKeyColumn fkColumn) {
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Debug.Assert(fkColumn.ForeignKeyNames.Count == fkColumn.ParentTable.PrimaryKeyColumns.Count);
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var result = new List<Parameter>();
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for (int i = 0; i < fkColumn.ForeignKeyNames.Count; i++) {
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string name = fkColumn.ForeignKeyNames[i];
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string value = Misc.GetRouteValue(name);
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MetaColumn parentTablePKColumn = fkColumn.ParentTable.PrimaryKeyColumns[i];
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var param = CreateParameter(name, value, parentTablePKColumn);
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result.Add(param);
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}
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return result;
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}
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internal static IEnumerable<Parameter> GetPrimaryKeyParameters(MetaTable table) {
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var result = new List<Parameter>();
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foreach (var primaryKeyColumn in table.PrimaryKeyColumns) {
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string name = primaryKeyColumn.Name;
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string value = Misc.GetRouteValue(name);
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var param = CreateParameter(name, value, primaryKeyColumn);
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result.Add(param);
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}
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return result;
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}
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internal static IEnumerable<Parameter> GetRegularColumnParameters(MetaColumn column) {
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// Handle other columns (e.g. booleans)
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string name = column.Name;
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string value = Misc.GetRouteValue(name);
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var param = CreateParameter(name, value, column);
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return new List<Parameter>() { param };
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}
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}
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}
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