private Node <Nodes.Column> GetColumnNode(Node <Nodes.Database> databaseNode, TSqlObject sqlColumn)
        {
            var sqlTable = sqlColumn.GetParent();

            if (sqlTable == null)
            {
                return(null);
            }

            var tableName  = sqlTable.Name.ToString();
            var columnName = sqlColumn.Name.ToString();

            var query = _graphClient.Cypher
                        .Start(new { database = databaseNode.Reference })
                        .Match("database-[:DATABASE_CONTAINS_TABLE]->table-[:TABLE_CONTAINS_COLUMN]->column")
                        .Where((Nodes.Table table, Nodes.Column column) => table.Id == tableName && column.Id == columnName)
                        .Return <Node <Nodes.Column> >("column");

            var results = query.Results.ToList();

            return(results.Count == 1 ? results.First() : null);
        }
Beispiel #2
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        private void ChangeCreateIndexOperationalProps(DeploymentPlanContributorContext context,
                                                       IList <IndexOption> options)
        {
            DeploymentStep nextStep = context.PlanHandle.Head;

            // Loop through all steps in the deployment plan
            bool foundMainSection = false;

            while (nextStep != null)
            {
                DeploymentStep currentStep = nextStep;
                nextStep = currentStep.Next;

                // We only want to analyze the main part of the deployment script - we'll skip
                // any steps until we pass the end of the predeployment section, and stop once
                // we hit the start of the postdeployment section
                if (currentStep is EndPreDeploymentScriptStep)
                {
                    foundMainSection = true;
                    continue;
                }

                if (!foundMainSection)
                {
                    // Haven't gotten past predeployment yet
                    continue;
                }

                if (currentStep is BeginPostDeploymentScriptStep)
                {
                    break;
                }

                // We need to care about CreateElementSteps and AlterElementSteps for Indexes.
                DeploymentScriptDomStep domStep = currentStep as DeploymentScriptDomStep;
                TSqlObject elementObject        = null;

                if (domStep is CreateElementStep)
                {
                    elementObject = ((CreateElementStep)domStep).SourceElement;
                }
                else if (domStep is AlterElementStep)
                {
                    elementObject = ((AlterElementStep)domStep).SourceElement;
                }

                if (elementObject != null)
                {
                    if (Index.TypeClass.Equals(elementObject.ObjectType) && !(View.TypeClass.Equals(elementObject.GetParent().ObjectType)))
                    {
                        TSqlFragment fragment = domStep.Script;

                        IndexStatementVisitor visitor = new IndexStatementVisitor(options);
                        fragment.Accept(visitor);
                    }
                }
            }
        }