[1146] | 1 | using System;
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| 2 | using System.Data;
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| 3 | using System.Data.Common;
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| 4 | using System.Text;
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| 5 |
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| 6 | namespace IndianHealthService.BMXNet.Ado
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| 7 | {
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| 8 | /// <summary>
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| 9 | /// BMXNET implementaiton of DbDataAdaptor. This class can be used like
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| 10 | /// any ADO.NET DbDataAdaptor implementation or the suggested RemoteSession API's can
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| 11 | /// be used.
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| 12 | ///
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| 13 | /// See ADO.NET documentation for details of this class.
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| 14 | /// </summary>
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| 15 | public class BMXNetDataAdapter : DbDataAdapter, IDbDataAdapter
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| 16 | {
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| 17 | private BMXNetCommand m_selectCommand;
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| 18 | private BMXNetCommand m_insertCommand;
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| 19 | private BMXNetCommand m_updateCommand;
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| 20 | private BMXNetCommand m_deleteCommand;
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| 21 |
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| 22 | /*
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| 23 | * Inherit from Component through DbDataAdapter. The event
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| 24 | * mechanism is designed to work with the Component.Events
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| 25 | * property. These variables are the keys used to find the
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| 26 | * events in the components list of events.
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| 27 | */
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| 28 | static private readonly object EventRowUpdated = new object();
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| 29 | static private readonly object EventRowUpdating = new object();
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| 30 |
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| 31 | public BMXNetDataAdapter()
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| 32 | {
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| 33 | }
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| 34 |
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| 35 | new public BMXNetCommand SelectCommand
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| 36 | {
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| 37 | get { return m_selectCommand; }
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| 38 | set { m_selectCommand = value; }
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| 39 | }
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| 40 |
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| 41 | IDbCommand IDbDataAdapter.SelectCommand
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| 42 | {
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| 43 | get { return m_selectCommand; }
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| 44 | set { m_selectCommand = (BMXNetCommand)value; }
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| 45 | }
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| 46 |
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| 47 | new public BMXNetCommand InsertCommand
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| 48 | {
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| 49 | get { return m_insertCommand; }
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| 50 | set { m_insertCommand = value; }
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| 51 | }
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| 52 |
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| 53 | IDbCommand IDbDataAdapter.InsertCommand
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| 54 | {
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| 55 | get { return m_insertCommand; }
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| 56 | set { m_insertCommand = (BMXNetCommand)value; }
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| 57 | }
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| 58 |
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| 59 | new public BMXNetCommand UpdateCommand
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| 60 | {
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| 61 | get { return m_updateCommand; }
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| 62 | set { m_updateCommand = value; }
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| 63 | }
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| 64 |
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| 65 | IDbCommand IDbDataAdapter.UpdateCommand
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| 66 | {
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| 67 | get { return m_updateCommand; }
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| 68 | set { m_updateCommand = (BMXNetCommand)value; }
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| 69 | }
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| 70 |
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| 71 | new public BMXNetCommand DeleteCommand
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| 72 | {
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| 73 | get { return m_deleteCommand; }
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| 74 | set { m_deleteCommand = value; }
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| 75 | }
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| 76 |
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| 77 | IDbCommand IDbDataAdapter.DeleteCommand
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| 78 | {
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| 79 | get { return m_deleteCommand; }
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| 80 | set { m_deleteCommand = (BMXNetCommand)value; }
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| 81 | }
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| 82 |
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| 83 | /*
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| 84 | * Implement abstract methods inherited from DbDataAdapter.
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| 85 | */
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| 86 |
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| 87 | public override int Fill(DataSet ds)
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| 88 | {
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| 89 | //The inital call to base.fill calls the RPC which loads up the array
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| 90 | //After base.fill returns, create a datareader
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| 91 | BMXNetConnection bmxConn = (BMXNetConnection) this.SelectCommand.Connection;
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| 92 | RPMSDb bmxDB = bmxConn.RPMSDb;
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| 93 |
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| 94 |
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| 95 | DataTable dt = ds.Tables.Count == 0 ? new DataTable() : ds.Tables[0];
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| 96 |
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| 97 | //Execute the RPC call
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| 98 | base.Fill(dt);
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| 99 | //Get the table name
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| 100 | this.ApplyMetaData(bmxDB.ResultSets[0].metaData, dt);
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| 101 | dt.TableName = dt.TableName == null ? bmxDB.ResultSets[0].fmFileID : dt.TableName;
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| 102 | dt.ExtendedProperties["fmSeed"] = bmxDB.ResultSets[0].fmSeed;
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| 103 | dt.ExtendedProperties["BMXParentPath"]=bmxDB.ResultSets[0].fmParentPath;
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| 104 | //dt.ExtendedProperties.Add("fmSeed", bmxDB.ResultSets[0].fmSeed);
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| 105 | //dt.ExtendedProperties.Add("BMXParentPath", bmxDB.ResultSets[0].fmParentPath);
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| 106 |
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| 107 |
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| 108 | string sParentTable = dt.TableName;
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| 109 |
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| 110 | //Add the first table to the DataSet
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| 111 | if (!ds.Tables.Contains(dt.TableName))
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| 112 | {
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| 113 | ds.Tables.Add(dt);
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| 114 | }
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| 115 |
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| 116 | //If bmxDB resultset array count is greater than 1
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| 117 | int nSets = bmxDB.ResultSets.GetUpperBound(0) + 1;
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| 118 |
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| 119 | if (nSets > 1)
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| 120 | {
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| 121 | //Set primary key for first table
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| 122 | string sKeyField = bmxDB.ResultSets[0].fmKeyField;
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| 123 | DataColumn dcKey = dt.Columns[sKeyField];
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| 124 | DataColumn[] dcKeys = new DataColumn[1];
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| 125 | dcKeys[0] = dcKey;
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| 126 | dt.PrimaryKey = dcKeys;
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| 127 |
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| 128 | string[] sRelations = new string[nSets];
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| 129 |
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| 130 | //loop and get the rest of the tables
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| 131 | for (int k = 1; k < nSets; k++)
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| 132 | {
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| 133 | //Increment the current recordset counter in bmxDB
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| 134 | bmxDB.CurrentRecordSet++;
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| 135 | //Create the next table
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| 136 | dt = new DataTable();
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| 137 | //Fill it
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| 138 | base.Fill(dt);
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| 139 | //Get the table name
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| 140 | string sChildTable = bmxDB.ResultSets[k].fmFileID;
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| 141 | dt.TableName = sChildTable;
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| 142 | //Add it to the dataset
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| 143 | ds.Tables.Add(dt);
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| 144 |
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| 145 | //Get the foreign key field
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| 146 | string sForeignKey = bmxDB.ResultSets[k].fmForeignKey;
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| 147 |
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| 148 | //Set the data relationship
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| 149 | string sParentKey;
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| 150 | sParentKey = "BMXIEN";
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| 151 | sParentKey = "PATIENT_IEN";
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| 152 |
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| 153 | DataRelation dr = new DataRelation("Relation" + k.ToString() , //Relation Name
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| 154 | ds.Tables[sParentTable].Columns[sParentKey], //; //parent
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| 155 | ds.Tables[sChildTable].Columns[sForeignKey]) ;//child
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| 156 | ds.Relations.Add(dr);
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| 157 | }
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| 158 | bmxDB.CurrentRecordSet = 0;
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| 159 | }
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| 160 | return dt.Rows.Count;
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| 161 | }
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| 162 |
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| 163 | private void ApplyMetaData(RPMSDb.RPMSDbResultSet.MetaData[] metaData, DataTable aTable)
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| 164 | {
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| 165 | foreach (RPMSDb.RPMSDbResultSet.MetaData each in metaData)
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| 166 | {
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| 167 | aTable.Columns[each.name].ReadOnly=each.fmReadOnly;
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| 168 | }
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| 169 | }
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| 170 |
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| 171 | override protected DataTable FillSchema(
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| 172 | DataTable dataTable,
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| 173 | SchemaType schemaType,
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| 174 | IDbCommand command,
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| 175 | CommandBehavior behavior
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| 176 | )
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| 177 | {
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| 178 | behavior = CommandBehavior.SchemaOnly;
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| 179 | BMXNetDataReader dReader =(BMXNetDataReader) command.ExecuteReader(behavior);
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| 180 | DataTable dtSchema = dReader.GetSchemaTable();
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| 181 | return dtSchema;
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| 182 | }
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| 183 |
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| 184 | override protected int Update(
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| 185 | DataRow[] dataRows,
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| 186 | DataTableMapping tableMapping
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| 187 | )
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| 188 | {
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| 189 | //Build UpdateCommand's m_sCmdText using UpdateCommand's parameters
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| 190 | // and data in dataRows;
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| 191 | // execute non query and increment nRet;
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| 192 |
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| 193 | string sCmd = "";
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| 194 | int nRecordsAffected = 0;
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| 195 |
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| 196 | //Get recordset-level info from parameters
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| 197 | BMXNetParameter parm = (BMXNetParameter)UpdateCommand.BmxNetParameters[0];
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| 198 | string sFileID = parm.SourceColumn;
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| 199 | parm = (BMXNetParameter) UpdateCommand.BmxNetParameters[1];
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| 200 | string sKeyField = parm.SourceColumn;
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| 201 | String parentPath= dataRows[0].Table.ExtendedProperties.ContainsKey("BMXParentPath") ? dataRows[0].Table.ExtendedProperties["BMXParentPath"].ToString() :"";
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| 202 | String[] parentPathPeices = parentPath.Split(new char[] { ',' });
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| 203 | string[] saKeyFields = sKeyField.Split(new char[] { ',' });
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| 204 | string sKeyID = null;
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| 205 | char[] cRecDelim = new char[1];
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| 206 | cRecDelim[0] = (char) 30;
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| 207 |
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| 208 | string sValue = "";
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| 209 | string sFMFieldID;
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| 210 | string sColumnName;
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| 211 | int nColIndex;
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| 212 |
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| 213 | //Process deletions
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| 214 | foreach (DataRow r in dataRows)
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| 215 | {
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| 216 | if (r.RowState == DataRowState.Deleted)
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| 217 | {
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| 218 | r.RejectChanges(); //so that I can get to the row id
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| 219 | //Build DAS
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| 220 | string sTmp = "";
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| 221 | for (int j = 0; j < saKeyFields.GetLength(0); j++)
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| 222 | {
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| 223 | if (saKeyFields[j] != "")
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| 224 | {
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| 225 | if (j > 0)
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| 226 | sTmp = sTmp + ",";
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| 227 | if (j == saKeyFields.GetLength(0) - 1)
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| 228 | sTmp += "-";
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| 229 | sTmp += r[saKeyFields[j]];
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| 230 | }
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| 231 | }
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| 232 | sCmd = sTmp;
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| 233 | sCmd = sFileID + "^" + sCmd + "^";
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| 234 | UpdateCommand.CommandText = "UPDATE " + sCmd;
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| 235 | int nRet = this.UpdateCommand.ExecuteNonQuery();
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| 236 | r.Delete();
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| 237 | nRecordsAffected += nRet;
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| 238 | }
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| 239 | }
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| 240 |
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| 241 | //Process Edits and Adds
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| 242 | foreach (DataRow r in dataRows)
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| 243 | {
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| 244 | sKeyID = null;
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| 245 | if (r.RowState != DataRowState.Deleted)
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| 246 | {
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| 247 | string sMsg = "";
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| 248 | for (int j=2; j < UpdateCommand.BmxNetParameters.Count; j++)
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| 249 | {
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| 250 |
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| 251 | parm = (BMXNetParameter)UpdateCommand.BmxNetParameters[j];
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| 252 | sColumnName = parm.ParameterName;
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| 253 | sFMFieldID = parm.SourceColumn;
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| 254 | //Find a column id in r whose column name is sColumnName
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| 255 | nColIndex = -1;
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| 256 | for (int k = 0; k < r.Table.Columns.Count; k ++)
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| 257 | {
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| 258 | if (r.Table.Columns[k].ColumnName == sColumnName)
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| 259 | {
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| 260 | nColIndex = k;
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| 261 | break;
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| 262 | }
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| 263 | }
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| 264 | if (nColIndex > -1)
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| 265 | {
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| 266 | if (r.ItemArray[nColIndex].GetType() == typeof(System.DateTime))
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| 267 | {
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| 268 | DateTime dValue = (DateTime) r.ItemArray[nColIndex];
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| 269 | if (dValue.Second != 0)
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| 270 | {
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| 271 | throw new BMXNetException("Seconds are not allowed in a Date");
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| 272 | }
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| 273 | if ((dValue.Minute == 0) && (dValue.Hour == 0))
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| 274 | {
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| 275 | sValue = dValue.ToString("M-d-yyyy");
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| 276 | }
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| 277 | else
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| 278 | {
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| 279 | sValue = dValue.ToString("M-d-yyyy@HH:mm");
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| 280 | }
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| 281 | }
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| 282 | else
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| 283 | {
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| 284 | sValue = r.ItemArray[nColIndex].ToString();
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| 285 | }
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| 286 | if (parm.IsKey == false)
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| 287 | {
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| 288 | if (sMsg != "")
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| 289 | sMsg += (char) 30;
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| 290 | sMsg += sFMFieldID + "|" + sValue;
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| 291 | }
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| 292 | }
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| 293 |
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| 294 |
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| 295 | if (sKeyID == null)
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| 296 | {
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| 297 | StringBuilder keyBuilder = new StringBuilder();
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| 298 | bool needsDelimiter = false;
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| 299 |
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| 300 | for (int i = 0; i < saKeyFields.Length; i++)
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| 301 | {
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| 302 | String currentKey = saKeyFields[i];
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| 303 | if (currentKey != "")
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| 304 | {
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| 305 | String currentValue = r[currentKey].ToString().Trim();
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| 306 | if (currentValue.Length == 0)
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| 307 | {
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| 308 | if (parentPathPeices.Length >= (i + 1))
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| 309 | {
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| 310 | currentValue = parentPathPeices[i];
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| 311 | }
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| 312 | }
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| 313 |
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| 314 | if (needsDelimiter)
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| 315 | keyBuilder.Append(',');
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| 316 |
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| 317 | keyBuilder.Append(currentValue);
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| 318 | needsDelimiter = true;
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| 319 | }
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| 320 | }
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| 321 | sKeyID = keyBuilder.ToString();
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| 322 | }
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| 323 |
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| 324 |
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| 325 | /*
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| 326 | switch (sFMFieldID)
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| 327 | {
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| 328 | case ".0001":
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| 329 | if (sKeyID == "")
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| 330 | {
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| 331 | sKeyID = sValue + ",";
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| 332 | }
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| 333 | else
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| 334 | {
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| 335 | sKeyID = sValue + "," + sKeyID;
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| 336 | }
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| 337 | break;
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| 338 | case ".001":
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| 339 | if (sKeyID == "")
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| 340 | {
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| 341 | sKeyID = sValue;
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| 342 | }
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| 343 | else
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| 344 | {
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| 345 | sKeyID = sKeyID + sValue;
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| 346 | }
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| 347 | break;
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| 348 | default:
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| 349 | break;
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| 350 |
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| 351 | }
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| 352 | **/
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| 353 |
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| 354 | }
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| 355 | sCmd = sFileID + "^" + sKeyID + "^" + sMsg;
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| 356 | UpdateCommand.CommandText = "UPDATE " + sCmd;
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| 357 | int nRet = this.UpdateCommand.ExecuteNonQuery();
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| 358 | nRecordsAffected += nRet;
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| 359 | }//end if RowState != deleted
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| 360 | }//end for
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| 361 |
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| 362 | return nRecordsAffected;
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| 363 | }
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| 364 |
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| 365 | override protected RowUpdatedEventArgs CreateRowUpdatedEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 366 | {
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| 367 | return new BMXNetRowUpdatedEventArgs(dataRow, command, statementType, tableMapping);
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| 368 | }
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| 369 |
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| 370 | override protected RowUpdatingEventArgs CreateRowUpdatingEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 371 | {
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| 372 | return new BMXNetRowUpdatingEventArgs(dataRow, command, statementType, tableMapping);
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| 373 | }
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| 374 |
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| 375 | override protected void OnRowUpdating(RowUpdatingEventArgs value)
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| 376 | {
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| 377 | BMXNetRowUpdatingEventHandler handler = (BMXNetRowUpdatingEventHandler) Events[EventRowUpdating];
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| 378 | if ((null != handler) && (value is BMXNetRowUpdatingEventArgs))
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| 379 | {
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| 380 | handler(this, (BMXNetRowUpdatingEventArgs) value);
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| 381 | }
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| 382 | }
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| 383 |
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| 384 | override protected void OnRowUpdated(RowUpdatedEventArgs value)
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| 385 | {
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| 386 | BMXNetRowUpdatedEventHandler handler = (BMXNetRowUpdatedEventHandler) Events[EventRowUpdated];
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| 387 | if ((null != handler) && (value is BMXNetRowUpdatedEventArgs))
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| 388 | {
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| 389 | handler(this, (BMXNetRowUpdatedEventArgs) value);
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| 390 | }
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| 391 | }
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| 392 |
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| 393 | internal event BMXNetRowUpdatingEventHandler RowUpdating
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| 394 | {
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| 395 | add { Events.AddHandler(EventRowUpdating, value); }
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| 396 | remove { Events.RemoveHandler(EventRowUpdating, value); }
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| 397 | }
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| 398 |
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| 399 | internal event BMXNetRowUpdatedEventHandler RowUpdated
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| 400 | {
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| 401 | add { Events.AddHandler(EventRowUpdated, value); }
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| 402 | remove { Events.RemoveHandler(EventRowUpdated, value); }
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| 403 | }
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| 404 | }
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| 405 |
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| 406 | internal delegate void BMXNetRowUpdatingEventHandler(object sender, BMXNetRowUpdatingEventArgs e);
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| 407 | internal delegate void BMXNetRowUpdatedEventHandler(object sender, BMXNetRowUpdatedEventArgs e);
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| 408 |
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| 409 | internal class BMXNetRowUpdatingEventArgs : RowUpdatingEventArgs
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| 410 | {
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| 411 | public BMXNetRowUpdatingEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 412 | : base(row, command, statementType, tableMapping)
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| 413 | {
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| 414 | }
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| 415 |
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| 416 | // Hide the inherited implementation of the command property.
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| 417 | new public BMXNetCommand Command
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| 418 | {
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| 419 | get { return (BMXNetCommand)base.Command; }
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| 420 | set { base.Command = value; }
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| 421 | }
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| 422 | }
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| 423 |
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| 424 | internal class BMXNetRowUpdatedEventArgs : RowUpdatedEventArgs
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| 425 | {
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| 426 | public BMXNetRowUpdatedEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 427 | : base(row, command, statementType, tableMapping)
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| 428 | {
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| 429 | }
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| 430 |
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| 431 | // Hide the inherited implementation of the command property.
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| 432 | new public BMXNetCommand Command
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| 433 | {
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| 434 | get { return (BMXNetCommand)base.Command; }
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| 435 | }
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| 436 | }
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| 437 | }
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