SET ANSI_NULLS ON;
GO
SET QUOTED_IDENTIFIER ON;
GO

IF OBJECT_ID(N'dbo.SceneManuscriptSources', N'U') IS NOT NULL
    AND EXISTS
    (
        SELECT 1
        FROM sys.foreign_keys
        WHERE name = N'FK_SceneManuscriptSources_Scenes'
            AND parent_object_id = OBJECT_ID(N'dbo.SceneManuscriptSources')
            AND delete_referential_action_desc <> N'CASCADE'
    )
BEGIN
    ALTER TABLE dbo.SceneManuscriptSources DROP CONSTRAINT FK_SceneManuscriptSources_Scenes;

    ALTER TABLE dbo.SceneManuscriptSources WITH CHECK
        ADD CONSTRAINT FK_SceneManuscriptSources_Scenes
        FOREIGN KEY (SceneID) REFERENCES dbo.Scenes(SceneID) ON DELETE CASCADE;
END;
GO

IF OBJECT_ID(N'dbo.SceneManuscriptSources', N'U') IS NOT NULL
    AND NOT EXISTS
    (
        SELECT 1
        FROM sys.foreign_keys
        WHERE name = N'FK_SceneManuscriptSources_Scenes'
            AND parent_object_id = OBJECT_ID(N'dbo.SceneManuscriptSources')
            AND delete_referential_action_desc = N'CASCADE'
    )
    THROW 52010, 'Scene manuscript source hard-delete cascade was not applied.', 1;
GO

IF OBJECT_ID(N'dbo.ManuscriptStructuralChapterSources', N'U') IS NOT NULL
    AND EXISTS
    (
        SELECT 1
        FROM sys.foreign_keys
        WHERE name = N'FK_ManuscriptStructuralChapterSources_Chapters'
            AND parent_object_id = OBJECT_ID(N'dbo.ManuscriptStructuralChapterSources')
            AND delete_referential_action_desc <> N'CASCADE'
    )
BEGIN
    ALTER TABLE dbo.ManuscriptStructuralChapterSources DROP CONSTRAINT FK_ManuscriptStructuralChapterSources_Chapters;

    ALTER TABLE dbo.ManuscriptStructuralChapterSources WITH CHECK
        ADD CONSTRAINT FK_ManuscriptStructuralChapterSources_Chapters
        FOREIGN KEY (ChapterID) REFERENCES dbo.Chapters(ChapterID) ON DELETE CASCADE;
END;
GO

IF OBJECT_ID(N'dbo.ManuscriptStructuralChapterSources', N'U') IS NOT NULL
    AND NOT EXISTS
    (
        SELECT 1
        FROM sys.foreign_keys
        WHERE name = N'FK_ManuscriptStructuralChapterSources_Chapters'
            AND parent_object_id = OBJECT_ID(N'dbo.ManuscriptStructuralChapterSources')
            AND delete_referential_action_desc = N'CASCADE'
    )
    THROW 52011, 'Structural chapter source hard-delete cascade was not applied.', 1;
GO