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FLocal/Common/actions/InsertOrUpdateChange.cs

69 lines
2.0 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using FLocal.Core;
using FLocal.Core.DB;
using FLocal.Core.DB.conditions;
namespace FLocal.Common.actions {
class InsertOrUpdateChange : AbstractChange {
private int? id;
private AbstractCondition condition;
public InsertOrUpdateChange(ISqlObjectTableSpec tableSpec, Dictionary<string, AbstractFieldValue> data, AbstractCondition condition)
: base(tableSpec, data) {
this.id = null;
this.condition = condition;
}
public override int? getId() {
return this.id;
}
public override void Lock(Transaction transaction) {
List<string> ids = Config.instance.mainConnection.LoadIdsByConditions(this.tableSpec, this.condition, Diapasone.unlimited, new JoinSpec[0]);
if(ids.Count > 1) {
throw new CriticalException("Not unique");
} else if(ids.Count == 1) {
this.id = int.Parse(ids[0]);
Config.instance.mainConnection.lockRow(transaction, this.tableSpec, this.id.ToString());
} else {
Config.instance.mainConnection.lockTable(transaction, this.tableSpec);
ids = Config.instance.mainConnection.LoadIdsByConditions(this.tableSpec, this.condition, Diapasone.unlimited, new JoinSpec[0]);
if(ids.Count > 1) {
throw new CriticalException("Not unique");
} else if(ids.Count == 1) {
this.id = int.Parse(ids[0]);
} else {
this.id = null;
}
}
}
protected override void doApply(Transaction transaction) {
Dictionary<string, string> processedData = new Dictionary<string,string>();
foreach(KeyValuePair<string, AbstractFieldValue> kvp in this.data) {
processedData[kvp.Key] = kvp.Value.getStringRepresentation();
}
if(this.id.HasValue) {
Config.instance.mainConnection.update(
transaction,
this.tableSpec,
this.id.ToString(),
processedData
);
} else {
Config.instance.mainConnection.insert(
transaction,
this.tableSpec,
processedData
);
}
}
}
}