Пример #1
0
        public static void BuildRelationshipSubqueryPart(BindVar roleVar, BindVar linkedRoleVar, BindVar linkedIdVar, string sqlStatement, bool reverse,
                                                         MIA_Management miaManagement, IList <object> resultParts)
        {
            string selectColumn;
            string roleColumn;
            string linkedRoleColumn;
            string linkedIdColumn;

            if (reverse)
            {
                //if this is the reverse part, reverse the column names
                selectColumn     = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_LINKED_ID);
                roleColumn       = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_LINKED_ROLE);
                linkedRoleColumn = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_ROLE);
                linkedIdColumn   = MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME;
            }
            else
            {
                selectColumn     = MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME;
                roleColumn       = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_ROLE);
                linkedRoleColumn = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_LINKED_ROLE);
                linkedIdColumn   = miaManagement.GetMIAAttributeColumnName(RelationshipAspect.ATTR_LINKED_ID);
            }

            resultParts.Add("SELECT R1.");
            resultParts.Add(selectColumn);
            resultParts.Add(" FROM ");
            resultParts.Add(miaManagement.GetMIATableName(RelationshipAspect.Metadata));
            resultParts.Add(" R1");

            //Check if we actually have any conditions
            if (roleVar == null && linkedRoleVar == null && linkedIdVar == null && string.IsNullOrEmpty(sqlStatement))
            {
                return;
            }

            resultParts.Add(" WHERE");

            bool hasCondition = false;

            //Linked id
            if (linkedIdVar != null)
            {
                hasCondition = true;
                resultParts.Add(" R1.");
                resultParts.Add(linkedIdColumn);
                resultParts.Add("=@" + linkedIdVar.Name);
            }

            //Role
            if (roleVar != null)
            {
                if (hasCondition)
                {
                    resultParts.Add(" AND");
                }
                hasCondition = true;
                resultParts.Add(" R1.");
                resultParts.Add(roleColumn);
                resultParts.Add("=@" + roleVar.Name);
            }

            //Linked role
            if (linkedRoleVar != null)
            {
                if (hasCondition)
                {
                    resultParts.Add(" AND");
                }
                resultParts.Add(" R1.");
                resultParts.Add(linkedRoleColumn);
                resultParts.Add("=@" + linkedRoleVar.Name);
            }

            //Linked id subquery
            if (!string.IsNullOrEmpty(sqlStatement))
            {
                if (hasCondition)
                {
                    resultParts.Add(" AND");
                }
                hasCondition = true;
                resultParts.Add(" R1." + linkedIdColumn);
                resultParts.Add(" IN(");
                resultParts.Add(sqlStatement);
                resultParts.Add(")");
            }
        }
Пример #2
0
        protected virtual void CompileStatementParts(MIA_Management miaManagement, IFilter filter, IFilter subqueryFilter, Namespace ns, BindVarNamespace bvNamespace,
                                                     ICollection <MediaItemAspectMetadata> requiredMIATypes, string outerMIIDJoinVariable, ICollection <TableJoin> tableJoins,
                                                     IList <object> resultParts, IList <BindVar> resultBindVars)
        {
            if (filter == null)
            {
                return;
            }

            MediaItemIdFilter mediaItemIdFilter = filter as MediaItemIdFilter;

            if (mediaItemIdFilter != null)
            {
                ICollection <Guid> mediaItemIds = mediaItemIdFilter.MediaItemIds;
                if (mediaItemIds.Count == 0)
                {
                    resultParts.Add("1 = 2");
                }
                else
                {
                    if (mediaItemIds.Count == 1)
                    {
                        resultParts.Add(outerMIIDJoinVariable);
                        BindVar bindVar = new BindVar(bvNamespace.CreateNewBindVarName("V"), mediaItemIds.First(), typeof(Guid));
                        resultParts.Add(" = @" + bindVar.Name);
                        resultBindVars.Add(bindVar);
                    }
                    else
                    {
                        bool first = true;
                        ICollection <string> clusterExpressions = new List <string>();
                        foreach (IList <Guid> mediaItemIdsCluster in CollectionUtils.Cluster(mediaItemIds, MAX_IN_VALUES_SIZE))
                        {
                            IList <string> bindVarRefs = new List <string>(MAX_IN_VALUES_SIZE);
                            foreach (Guid mediaItemId in mediaItemIdsCluster)
                            {
                                BindVar bindVar = new BindVar(bvNamespace.CreateNewBindVarName("V"), mediaItemId, typeof(Guid));
                                bindVarRefs.Add("@" + bindVar.Name);
                                resultBindVars.Add(bindVar);
                            }
                            if (!first)
                            {
                                resultParts.Add(" OR ");
                            }
                            first = false;
                            resultParts.Add(outerMIIDJoinVariable);
                            resultParts.Add(" IN (" + StringUtils.Join(", ", bindVarRefs) + ")");
                        }
                        resultParts.Add(StringUtils.Join(" OR ", clusterExpressions));
                    }
                }
                return;
            }

            BooleanCombinationFilter boolFilter     = filter as BooleanCombinationFilter;
            ICollection <IFilter>    filterOperands = boolFilter?.Operands; //Work on collection reference to avoid chaning original

            if (boolFilter != null && boolFilter.Operator == BooleanOperator.And && boolFilter.Operands.Count > 1 && boolFilter.Operands.ToList().All(x => x is IAttributeFilter))
            {
                ICollection <IFilter> remainingOperands = new List <IFilter>();

                // Special case to do multiple MIA boolean logic first
                IDictionary <Guid, ICollection <IAttributeFilter> > multiGroups = new Dictionary <Guid, ICollection <IAttributeFilter> >();
                foreach (IAttributeFilter operand in filterOperands)
                {
                    MultipleMediaItemAspectMetadata mmiam = operand.AttributeType.ParentMIAM as MultipleMediaItemAspectMetadata;
                    if (mmiam != null)
                    {
                        Guid key = operand.AttributeType.ParentMIAM.AspectId;
                        if (!multiGroups.ContainsKey(key))
                        {
                            multiGroups[key] = new List <IAttributeFilter>();
                        }
                        multiGroups[key].Add(operand);
                    }
                    else
                    {
                        remainingOperands.Add(operand);
                    }
                }

                if (multiGroups.Keys.Count > 0)
                {
                    bool firstGroup = true;
                    foreach (ICollection <IAttributeFilter> filterGroup in multiGroups.Values)
                    {
                        if (firstGroup)
                        {
                            firstGroup = false;
                        }
                        else
                        {
                            resultParts.Add(" AND ");
                        }

                        bool firstItem = true;
                        foreach (IAttributeFilter filterItem in filterGroup)
                        {
                            MediaItemAspectMetadata.AttributeSpecification attributeType = filterItem.AttributeType;
                            if (firstItem)
                            {
                                resultParts.Add(outerMIIDJoinVariable);
                                resultParts.Add(" IN(");
                                resultParts.Add("SELECT ");
                                resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                                resultParts.Add(" FROM ");
                                resultParts.Add(miaManagement.GetMIATableName(attributeType.ParentMIAM));
                                resultParts.Add(" WHERE ");

                                firstItem = false;
                            }
                            else
                            {
                                resultParts.Add(" AND ");
                            }
                            //Empty filter needs to be handled differently to other IAttribute filters
                            if (filterItem is EmptyFilter)
                            {
                                resultParts.Add(miaManagement.GetMIAAttributeColumnName(attributeType));
                                resultParts.Add(" IS NULL");
                            }
                            else
                            {
                                BuildAttributeFilterExpression(filterItem, miaManagement.GetMIAAttributeColumnName(attributeType), bvNamespace, resultParts, resultBindVars);
                            }
                        }
                        resultParts.Add(")");
                    }

                    // Process remaining operands ?
                    if (remainingOperands.Count == 0)
                    {
                        return;
                    }

                    resultParts.Add(" AND ");
                    filterOperands = remainingOperands;
                }
            }
            if (boolFilter != null)
            {
                int         numOperands  = filterOperands.Count;
                IEnumerator enumOperands = filterOperands.GetEnumerator();
                if (!enumOperands.MoveNext())
                {
                    return;
                }
                if (numOperands > 1)
                {
                    resultParts.Add("(");
                }
                CompileStatementParts(miaManagement, (IFilter)enumOperands.Current, subqueryFilter, ns, bvNamespace,
                                      requiredMIATypes, outerMIIDJoinVariable, tableJoins, resultParts, resultBindVars);
                while (enumOperands.MoveNext())
                {
                    switch (boolFilter.Operator)
                    {
                    case BooleanOperator.And:
                        resultParts.Add(" AND ");
                        break;

                    case BooleanOperator.Or:
                        resultParts.Add(" OR ");
                        break;

                    default:
                        throw new NotImplementedException(string.Format(
                                                              "Boolean filter operator '{0}' isn't supported by the media library", boolFilter.Operator));
                    }
                    CompileStatementParts(miaManagement, (IFilter)enumOperands.Current, subqueryFilter, ns, bvNamespace,
                                          requiredMIATypes, outerMIIDJoinVariable, tableJoins, resultParts, resultBindVars);
                }
                if (numOperands > 1)
                {
                    resultParts.Add(")");
                }
                return;
            }

            NotFilter notFilter = filter as NotFilter;

            if (notFilter != null)
            {
                resultParts.Add("NOT (");
                CompileStatementParts(miaManagement, notFilter.InnerFilter, subqueryFilter, ns, bvNamespace,
                                      requiredMIATypes, outerMIIDJoinVariable, tableJoins, resultParts, resultBindVars);
                resultParts.Add(")");
                return;
            }

            FalseFilter falseFilter = filter as FalseFilter;

            if (falseFilter != null)
            {
                resultParts.Add("1 = 2");
                return;
            }

            // Must be done before checking IAttributeFilter - EmptyFilter is also an IAttributeFilter but must be
            // compiled in a different way
            EmptyFilter emptyFilter = filter as EmptyFilter;

            if (emptyFilter != null)
            {
                MediaItemAspectMetadata.AttributeSpecification attributeType = emptyFilter.AttributeType;
                requiredMIATypes.Add(attributeType.ParentMIAM);
                Cardinality cardinality = attributeType.Cardinality;
                if (cardinality == Cardinality.Inline || cardinality == Cardinality.ManyToOne)
                {
                    resultParts.Add(new QueryAttribute(attributeType));
                    resultParts.Add(" IS NULL"); // MTO attributes are joined with left outer joins and thus can also be checked for NULL
                }
                else if (cardinality == Cardinality.OneToMany)
                {
                    resultParts.Add("NOT EXISTS(");
                    resultParts.Add("SELECT 1");
                    resultParts.Add(" FROM ");
                    resultParts.Add(miaManagement.GetMIACollectionAttributeTableName(attributeType));
                    resultParts.Add(" V WHERE V.");
                    resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                    resultParts.Add("=");
                    resultParts.Add(outerMIIDJoinVariable);
                    resultParts.Add(")");
                }
                else if (cardinality == Cardinality.ManyToMany)
                {
                    resultParts.Add("NOT EXISTS(");
                    resultParts.Add("SELECT 1");
                    resultParts.Add(" FROM ");
                    resultParts.Add(miaManagement.GetMIACollectionAttributeNMTableName(attributeType));
                    resultParts.Add(" NM INNER JOIN ");
                    resultParts.Add(miaManagement.GetMIACollectionAttributeTableName(attributeType));
                    resultParts.Add(" V ON NM.");
                    resultParts.Add(MIA_Management.FOREIGN_COLL_ATTR_ID_COL_NAME);
                    resultParts.Add(" = V.");
                    resultParts.Add(MIA_Management.FOREIGN_COLL_ATTR_ID_COL_NAME);
                    resultParts.Add(" WHERE NM.");
                    resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                    resultParts.Add("=");
                    resultParts.Add(outerMIIDJoinVariable);
                    resultParts.Add(")");
                }
                return;
            }

            // Must be done before checking IAttributeFilter - EmptyUserDataFilter is also an IAttributeFilter but must be
            // compiled in a different way
            EmptyUserDataFilter emptyUserDataFilter = filter as EmptyUserDataFilter;

            if (emptyUserDataFilter != null)
            {
                BindVar userIdVar = new BindVar(bvNamespace.CreateNewBindVarName("V"), emptyUserDataFilter.UserProfileId, typeof(Guid));

                resultParts.Add("NOT EXISTS(");
                resultParts.Add("SELECT 1");
                resultParts.Add(" FROM ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_MEDIA_ITEM_DATA_TABLE_NAME);
                resultParts.Add(" WHERE ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_PROFILE_ID_COL_NAME);
                resultParts.Add(" = @" + userIdVar.Name);
                resultBindVars.Add(userIdVar);
                resultParts.Add(" AND ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_KEY_COL_NAME);
                resultParts.Add(" = '");
                resultParts.Add(emptyUserDataFilter.UserDataKey);
                resultParts.Add("' AND ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_VALUE_COL_NAME);
                resultParts.Add(" IS NOT NULL ");
                resultParts.Add(" AND ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_VALUE_COL_NAME);
                resultParts.Add(" <> '' ");
                resultParts.Add(" AND ");
                resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                resultParts.Add("=");
                resultParts.Add(outerMIIDJoinVariable);
                resultParts.Add(")");

                return;
            }

            AbstractRelationshipFilter relationshipFilter = filter as AbstractRelationshipFilter;

            if (relationshipFilter != null)
            {
                resultParts.Add(outerMIIDJoinVariable);
                resultParts.Add(" IN(");
                BuildRelationshipSubquery(relationshipFilter, subqueryFilter, miaManagement, bvNamespace, resultParts, resultBindVars);
                resultParts.Add(")");
                return;
            }

            RelationalUserDataFilter relationalUserDataFilter = filter as RelationalUserDataFilter;

            if (relationalUserDataFilter != null)
            {
                BindVar userIdVar = new BindVar(bvNamespace.CreateNewBindVarName("V"), relationalUserDataFilter.UserProfileId, typeof(Guid));
                BindVar bindVar   = new BindVar(bvNamespace.CreateNewBindVarName("V"), relationalUserDataFilter.FilterValue, typeof(string));

                resultParts.Add("(EXISTS(");
                resultParts.Add("SELECT 1");
                resultParts.Add(" FROM ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_MEDIA_ITEM_DATA_TABLE_NAME);
                resultParts.Add(" WHERE ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_PROFILE_ID_COL_NAME);
                resultParts.Add(" = @" + userIdVar.Name);
                resultBindVars.Add(userIdVar);
                resultParts.Add(" AND ");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_KEY_COL_NAME);
                resultParts.Add(" = '");
                resultParts.Add(relationalUserDataFilter.UserDataKey);
                resultParts.Add("' AND (");
                resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_VALUE_COL_NAME);
                switch (relationalUserDataFilter.Operator)
                {
                case RelationalOperator.EQ:
                    resultParts.Add(" = ");
                    break;

                case RelationalOperator.NEQ:
                    resultParts.Add(" <> ");
                    break;

                case RelationalOperator.LT:
                    resultParts.Add(" < ");
                    break;

                case RelationalOperator.LE:
                    resultParts.Add(" <= ");
                    break;

                case RelationalOperator.GT:
                    resultParts.Add(" > ");
                    break;

                case RelationalOperator.GE:
                    resultParts.Add(" >= ");
                    break;

                default:
                    throw new NotImplementedException(string.Format(
                                                          "Relational user data filter operator '{0}' isn't supported by the media library", relationalUserDataFilter.Operator));
                }
                resultParts.Add("@" + bindVar.Name);
                resultBindVars.Add(bindVar);
                if (relationalUserDataFilter.IncludeEmpty)
                {
                    resultParts.Add(" OR ");
                    resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_VALUE_COL_NAME);
                    resultParts.Add(" IS NULL ");
                }
                resultParts.Add(") AND ");
                resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                resultParts.Add("=");
                resultParts.Add(outerMIIDJoinVariable);
                resultParts.Add(")");
                if (relationalUserDataFilter.IncludeEmpty)
                {
                    resultParts.Add(" OR NOT EXISTS(");
                    resultParts.Add("SELECT 1");
                    resultParts.Add(" FROM ");
                    resultParts.Add(UserProfileDataManagement_SubSchema.USER_MEDIA_ITEM_DATA_TABLE_NAME);
                    resultParts.Add(" WHERE ");
                    resultParts.Add(UserProfileDataManagement_SubSchema.USER_PROFILE_ID_COL_NAME);
                    resultParts.Add(" = @" + userIdVar.Name);
                    resultParts.Add(" AND ");
                    resultParts.Add(UserProfileDataManagement_SubSchema.USER_DATA_KEY_COL_NAME);
                    resultParts.Add(" = '");
                    resultParts.Add(relationalUserDataFilter.UserDataKey);
                    resultParts.Add("'");
                    resultParts.Add(" AND ");
                    resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                    resultParts.Add("=");
                    resultParts.Add(outerMIIDJoinVariable);
                    resultParts.Add(")");
                }
                resultParts.Add(")");
                return;
            }

            IAttributeFilter attributeFilter = filter as IAttributeFilter;

            if (attributeFilter != null)
            {
                MediaItemAspectMetadata.AttributeSpecification attributeType = attributeFilter.AttributeType;
                if (attributeType.ParentMIAM is MultipleMediaItemAspectMetadata)
                {
                    resultParts.Add(outerMIIDJoinVariable);
                    resultParts.Add(" IN(");
                    resultParts.Add("SELECT ");
                    resultParts.Add(MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME);
                    resultParts.Add(" FROM ");
                    resultParts.Add(miaManagement.GetMIATableName(attributeType.ParentMIAM));
                    resultParts.Add(" WHERE ");
                    BuildAttributeFilterExpression(attributeFilter, miaManagement.GetMIAAttributeColumnName(attributeType), bvNamespace, resultParts, resultBindVars);
                    resultParts.Add(")");

                    return;
                }

                // For attribute filters, we have to create different kinds of expressions, depending on the
                // cardinality of the attribute to be filtered.
                // For Inline and MTO attributes, we simply create
                //
                // QA [Operator] [Comparison-Value]
                //
                // for OTM attributes, we create
                //
                // INNER JOIN [OTM-Value-Table] V ON V.MEDIA_ITEM_ID=[Outer-Join-Variable-Placeholder]
                // WHERE [...] and V.VALUE [Operator] [Comparison-Value])
                //
                // for MTM attributes, we create
                //
                // INNER JOIN [MTM-NM-Table] NM ON NM.MEDIA_ITEM_ID=[Outer-Join-Variable-Placeholder]
                // INNER JOIN [MTM-Value-Table] V ON NM.ID = V.ID
                // WHERE [...] AND V.VALUE [Operator] [Comparison-Value])

                requiredMIATypes.Add(attributeType.ParentMIAM);
                Cardinality cardinality = attributeType.Cardinality;
                if (cardinality == Cardinality.Inline || cardinality == Cardinality.ManyToOne)
                {
                    BuildAttributeFilterExpression(attributeFilter, new QueryAttribute(attributeType), bvNamespace,
                                                   resultParts, resultBindVars);
                }
                else if (cardinality == Cardinality.OneToMany)
                {
                    string joinTable = miaManagement.GetMIACollectionAttributeTableName(attributeType);
                    string attrName;
                    if (!_innerJoinedTables.TryGetValue(joinTable, out attrName))
                    {
                        TableQueryData tqd = new TableQueryData(joinTable);

                        tableJoins.Add(new TableJoin("LEFT OUTER JOIN", tqd,
                                                     new RequestedAttribute(tqd, MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME), outerMIIDJoinVariable));
                        attrName = new RequestedAttribute(tqd, MIA_Management.COLL_ATTR_VALUE_COL_NAME).GetQualifiedName(ns);
                        _innerJoinedTables.Add(joinTable, attrName);
                    }
                    BuildAttributeFilterExpression(attributeFilter, attrName, bvNamespace, resultParts, resultBindVars);
                }
                else if (cardinality == Cardinality.ManyToMany)
                {
                    string miaCollectionAttributeNMTableName = miaManagement.GetMIACollectionAttributeNMTableName(attributeType);
                    string attrName;
                    if (!_innerJoinedTables.TryGetValue(miaCollectionAttributeNMTableName, out attrName))
                    {
                        TableQueryData tqdMiaCollectionAttributeNMTable = new TableQueryData(miaCollectionAttributeNMTableName);

                        tableJoins.Add(new TableJoin("LEFT OUTER JOIN", tqdMiaCollectionAttributeNMTable,
                                                     new RequestedAttribute(tqdMiaCollectionAttributeNMTable, MIA_Management.MIA_MEDIA_ITEM_ID_COL_NAME), outerMIIDJoinVariable));

                        TableQueryData tqdMiaCollectionAttributeTable = new TableQueryData(miaManagement.GetMIACollectionAttributeTableName(attributeType));

                        tableJoins.Add(new TableJoin("LEFT OUTER JOIN", tqdMiaCollectionAttributeTable,
                                                     new RequestedAttribute(tqdMiaCollectionAttributeNMTable, MIA_Management.FOREIGN_COLL_ATTR_ID_COL_NAME),
                                                     new RequestedAttribute(tqdMiaCollectionAttributeTable, MIA_Management.FOREIGN_COLL_ATTR_ID_COL_NAME)));
                        attrName = tqdMiaCollectionAttributeTable.GetAlias(ns) + "." + MIA_Management.COLL_ATTR_VALUE_COL_NAME;
                        _innerJoinedTables.Add(miaCollectionAttributeNMTableName, attrName);
                    }
                    BuildAttributeFilterExpression(attributeFilter, attrName, bvNamespace, resultParts, resultBindVars);
                }
                return;
            }
            throw new InvalidDataException("Filter type '{0}' isn't supported by the media library", filter.GetType().Name);
        }
Пример #3
0
 /// <summary>
 /// Creates a table query of the main media item aspect table of the given <paramref name="miaType"/>.
 /// </summary>
 /// <param name="miaManagement">MIA management instance.</param>
 /// <param name="miaType">Type of the MIA to request.</param>
 /// <returns>Table query for the given MIA.</returns>
 public static TableQueryData CreateTableQueryOfMIATable(MIA_Management miaManagement,
                                                         MediaItemAspectMetadata miaType)
 {
     return(new TableQueryData(miaManagement.GetMIATableName(miaType)));
 }
Пример #4
0
        protected DatabaseMigrationManager GetMiaMigrationManager(Guid miaId, string miaName)
        {
            if (_miaManagement == null)
            {
                _miaManagement = new MIA_Management();
            }

            //Check if table for mia can be found
            var    metaData  = _miaManagement.GetMediaItemAspectMetadata(miaId);
            string tableName = _miaManagement.GetMIATableName(metaData);

            if (string.IsNullOrEmpty(tableName))
            {
                return(null);
            }

            //Check if backup table exists
            ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);

            if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
            {
                return(null);
            }

            //Add main table
            IDictionary <string, IList <string> > defaultScriptPlaceholderTables = new Dictionary <string, IList <string> >();

            defaultScriptPlaceholderTables.Add(MIA_TABLE_PLACEHOLDER, new List <string> {
                tableName
            });

            //Add collection tables
            foreach (var attribute in metaData.AttributeSpecifications)
            {
                if (attribute.Value.IsCollectionAttribute)
                {
                    if (attribute.Value.Cardinality == Common.MediaManagement.Cardinality.OneToMany ||
                        attribute.Value.Cardinality == Common.MediaManagement.Cardinality.ManyToMany)
                    {
                        tableName = _miaManagement.GetMIACollectionAttributeTableName(attribute.Value);
                        if (string.IsNullOrEmpty(tableName))
                        {
                            continue;
                        }
                        if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
                        {
                            continue;
                        }

                        if (!defaultScriptPlaceholderTables.ContainsKey(MIA_V_TABLE_PLACEHOLDER))
                        {
                            defaultScriptPlaceholderTables.Add(MIA_V_TABLE_PLACEHOLDER, new List <string>());
                        }
                        defaultScriptPlaceholderTables[MIA_V_TABLE_PLACEHOLDER].Add(tableName);
                    }
                    if (attribute.Value.Cardinality == Common.MediaManagement.Cardinality.ManyToMany)
                    {
                        tableName = _miaManagement.GetMIACollectionAttributeNMTableName(attribute.Value);
                        if (string.IsNullOrEmpty(tableName))
                        {
                            continue;
                        }
                        if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
                        {
                            continue;
                        }

                        if (!defaultScriptPlaceholderTables.ContainsKey(MIA_NM_TABLE_PLACEHOLDER))
                        {
                            defaultScriptPlaceholderTables.Add(MIA_NM_TABLE_PLACEHOLDER, new List <string>());
                        }
                        defaultScriptPlaceholderTables[MIA_NM_TABLE_PLACEHOLDER].Add(tableName);
                    }
                }
            }

            DatabaseMigrationManager manager = new DatabaseMigrationManager(miaName, "DefaultAspect", defaultScriptPlaceholderTables);

            manager.AddDirectory(MediaPortal_Basis_Schema.DatabaseUpgradeScriptDirectory);
            return(manager);
        }
Пример #5
0
 /// <summary>
 /// Creates a table query of the main media item aspect table of the given <paramref name="miaType"/>.
 /// </summary>
 /// <param name="miaManagement">MIA management instance.</param>
 /// <param name="miaType">Type of the MIA to request.</param>
 /// <returns>Table query for the given MIA.</returns>
 public static TableQueryData CreateTableQueryOfMIATable(MIA_Management miaManagement,
     MediaItemAspectMetadata miaType)
 {
   return new TableQueryData(miaManagement.GetMIATableName(miaType));
 }