/// <exception cref="InstanceNotFoundException">Not found commit for commitId</exception>
private AjaxTransferDbScheme GetCommit(int appId, int commitId = -1)
{
var context = COREobject.i.Context;
var result = new AjaxTransferDbScheme();
var requestedCommit = FetchDbSchemeCommit(appId, commitId, context);
int?lockedForUserId = context.Applications.Find(appId).SchemeLockedForUserId;
result.SchemeLockedForUserId = lockedForUserId; //set the lockedForUserId for ajax model
if (lockedForUserId != null)
{
result.SchemeLockedForUserName = context.Users.SingleOrDefault(u => u.Id == result.SchemeLockedForUserId).DisplayName;
}
if (commitId == -1 && requestedCommit != null)
{
DbSchemeCommit sharedCommit = FetchDbSchemeCommit(Application.SystemApp().Id, commitId, context);
AjaxTransferDbScheme sharedScheme = new AjaxTransferDbScheme();
SetAttributesRequestCommitTables(sharedCommit, sharedScheme);
SetAttributesRequestCommitRelations(sharedCommit, sharedScheme);
SetAttributesRequestCommitViews(sharedCommit, sharedScheme);
sharedScheme.CurrentSchemeCommitId = context.Applications.Find(appId).DatabaseDesignerSchemeCommits.OrderByDescending(s => s.Timestamp).FirstOrDefault().Id;
result.Shared = sharedScheme;
if (requestedCommit == null)
{
return(result);
}
}
//Latest commit was requested, but there are no commits yet. Returning an empty commit.
if (requestedCommit == null)
{
return(new AjaxTransferDbScheme()
{
CurrentSchemeCommitId = null
});
}
result.CurrentSchemeCommitId = context.Applications.Find(appId).DatabaseDesignerSchemeCommits.OrderByDescending(s => s.Timestamp).FirstOrDefault().Id;
SetAttributesRequestCommitTables(requestedCommit, result);
SetAttributesRequestCommitRelations(requestedCommit, result);
SetAttributesRequestCommitViews(requestedCommit, result);
return(result);
}
private static void SetAttributesRequestCommitTables(DbSchemeCommit requestedCommit, AjaxTransferDbScheme result)
{
foreach (var table in requestedCommit.Tables)
{
var ajaxTable = new AjaxTransferDbTable
{
Id = table.Id,
Name = table.Name,
PositionX = table.PositionX,
PositionY = table.PositionY
};
foreach (var column in table.Columns)
{
ajaxTable.Columns.Add(new AjaxTransferDbColumn
{
AllowNull = column.AllowNull,
ColumnLength = column.ColumnLength,
ColumnLengthIsMax = column.ColumnLengthIsMax,
DefaultValue = column.DefaultValue,
Id = column.Id,
Name = column.Name,
DisplayName = column.DisplayName,
PrimaryKey = column.PrimaryKey,
Type = column.Type,
Unique = column.Unique,
});
}
foreach (var index in table.Indices)
{
ajaxTable.Indices.Add(new AjaxTransferDbIndex
{
ColumnNames = index.ColumnNames.Split(',').ToList(),
Id = index.Id,
Name = index.Name,
Unique = index.Unique,
});
}
result.Tables.Add(ajaxTable);
}
}
private static void SetAttributesRequestCommitRelations(DbSchemeCommit requestedCommit, AjaxTransferDbScheme result)
{
foreach (var relation in requestedCommit.Relations)
{
result.Relations.Add(new AjaxTransferDbRelation
{
SourceColumn = relation.SourceColumnId,
SourceTable = relation.SourceTableId,
TargetColumn = relation.TargetColumnId,
TargetTable = relation.TargetTableId,
Type = relation.Type
});
}
}
private static void SetAttributesRequestCommitViews(DbSchemeCommit requestedCommit, AjaxTransferDbScheme result)
{
foreach (var view in requestedCommit.Views)
{
result.Views.Add(new AjaxTransferDbView
{
Id = view.Id,
Name = view.Name,
PositionX = view.PositionX,
PositionY = view.PositionY,
Query = view.Query,
});
}
}
public int SaveScheme(int appId, AjaxTransferDbScheme postData)
{
bool dbSchemeLocked = false;
try
{
DbSchemeCommit commit = new DbSchemeCommit();
var context = COREobject.i.Context;
var requestedApp = context.Applications.Find(appId);
requestedApp.SchemeLockedForUserId = null;
if (requestedApp.DbSchemeLocked)
{
throw new InvalidOperationException("This application's database scheme is locked because another process is currently working with it.");
}
requestedApp.DbSchemeLocked = dbSchemeLocked = true;
requestedApp.EntitronChangedSinceLastBuild = true;
requestedApp.TapestryChangedSinceLastBuild = true;
context.SaveChanges();
commit.Timestamp = DateTime.UtcNow;
commit.CommitMessage = postData.CommitMessage;
requestedApp.DatabaseDesignerSchemeCommits.Add(commit);
Dictionary <int, int> tableIdMapping = new Dictionary <int, int>();
Dictionary <int, int> columnIdMapping = new Dictionary <int, int>();
Dictionary <int, DbColumn> columnMapping = new Dictionary <int, DbColumn>();
foreach (var ajaxTable in postData.Tables)
{
int ajaxTableId = ajaxTable.Id;
DbTable newTable = new DbTable {
Name = ajaxTable.Name, PositionX = ajaxTable.PositionX, PositionY = ajaxTable.PositionY
};
foreach (var column in ajaxTable.Columns)
{
int ajaxColumnId = column.Id;
DbColumn newColumn = new DbColumn
{
Name = column.Name,
DisplayName = column.DisplayName,
Type = column.Type,
PrimaryKey = column.PrimaryKey,
AllowNull = column.AllowNull,
DefaultValue = column.DefaultValue,
ColumnLength = column.ColumnLength,
ColumnLengthIsMax = column.ColumnLengthIsMax,
Unique = column.Unique
};
newTable.Columns.Add(newColumn);
context.SaveChanges();
columnMapping.Add(ajaxColumnId, newColumn);
}
foreach (var index in ajaxTable.Indices)
{
string columnNamesString = "";
if (index.ColumnNames.Count > 0)
{
for (int i = 0; i < index.ColumnNames.Count - 1; i++)
{
columnNamesString += index.ColumnNames[i] + ",";
}
columnNamesString += index.ColumnNames.Last();
}
DbIndex newIndex = new DbIndex
{
Name = index.Name,
Unique = index.Unique,
ColumnNames = columnNamesString
};
newTable.Indices.Add(newIndex);
}
commit.Tables.Add(newTable);
context.SaveChanges();
tableIdMapping.Add(ajaxTableId, newTable.Id);
foreach (var column in ajaxTable.Columns)
{
DbColumn col =
newTable.Columns.SingleOrDefault(x => x.Name.ToLower() == columnMapping[column.Id].Name.ToLower());
columnIdMapping.Add(column.Id, col.Id);
}
}
foreach (var ajaxRelation in postData.Relations)
{
int sourceTable = tableIdMapping[ajaxRelation.SourceTable];
int targetTable = tableIdMapping[ajaxRelation.TargetTable];
int sourceColumn = columnIdMapping[ajaxRelation.SourceColumn];
int targetColumn = columnIdMapping[ajaxRelation.TargetColumn];
DbTable targetTableDb = commit.Tables.SingleOrDefault(x => x.Id == targetTable);
DbTable sourceTableDb = commit.Tables.SingleOrDefault(x => x.Id == sourceTable);
string name = targetTableDb.Name + targetTableDb.Columns.SingleOrDefault(x => x.Id == targetColumn).Name + "_" + sourceTableDb.Name + sourceTableDb.Columns.SingleOrDefault(x => x.Id == sourceColumn).Name;
commit.Relations.Add(new DbRelation
{
SourceTableId = sourceTable,
TargetTableId = targetTable,
SourceColumnId = sourceColumn,
TargetColumnId = targetColumn,
Type = ajaxRelation.Type,
Name = name
});
}
foreach (var ajaxView in postData.Views)
{
commit.Views.Add(new DbView
{
Name = ajaxView.Name,
Query = ajaxView.Query,
PositionX = ajaxView.PositionX,
PositionY = ajaxView.PositionY
});
}
requestedApp.DbSchemeLocked = dbSchemeLocked = false;
commit.IsComplete = true;
context.SaveChanges();
return(commit.Id);
}
catch (Exception ex)
{
if (dbSchemeLocked)
{
var context = COREobject.i.Context;
var requestedApp = context.Applications.Find(appId);
requestedApp.DbSchemeLocked = false;
context.SaveChanges();
}
var errorMessage = "DatabaseDesigner: an error occurred when saving the database scheme (POST api/database/apps/{appId}/commits). " +
$"Exception message: {ex.Message}";
Log.Error(errorMessage);
throw GetHttpInternalServerErrorResponseException(errorMessage);
}
}
