66 lines
2.7 KiB
SQL
66 lines
2.7 KiB
SQL
CREATE TABLE `attempts` (
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`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
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`session_id` integer NOT NULL,
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`card_id` integer NOT NULL,
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`direction` text NOT NULL,
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`shown_at` integer DEFAULT (unixepoch()) NOT NULL,
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`result` text NOT NULL,
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`time_to_answer_ms` integer,
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FOREIGN KEY (`session_id`) REFERENCES `sessions`(`id`) ON UPDATE no action ON DELETE cascade,
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FOREIGN KEY (`card_id`) REFERENCES `cards`(`id`) ON UPDATE no action ON DELETE cascade
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);
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--> statement-breakpoint
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CREATE TABLE `card_progress` (
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`card_id` integer NOT NULL,
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`direction` text NOT NULL,
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`box` integer DEFAULT 1 NOT NULL,
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`correct_count` integer DEFAULT 0 NOT NULL,
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`incorrect_count` integer DEFAULT 0 NOT NULL,
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`last_shown_at` integer,
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`next_due_at` integer DEFAULT 0 NOT NULL,
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FOREIGN KEY (`card_id`) REFERENCES `cards`(`id`) ON UPDATE no action ON DELETE cascade
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);
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--> statement-breakpoint
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CREATE TABLE `cards` (
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`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
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`lesson_id` integer NOT NULL,
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`question` text NOT NULL,
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`answer` text NOT NULL,
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`hint` text,
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`position` integer DEFAULT 0 NOT NULL,
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`created_at` integer DEFAULT (unixepoch()) NOT NULL,
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`updated_at` integer DEFAULT (unixepoch()) NOT NULL,
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FOREIGN KEY (`lesson_id`) REFERENCES `lessons`(`id`) ON UPDATE no action ON DELETE cascade
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);
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--> statement-breakpoint
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CREATE TABLE `lessons` (
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`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
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`parent_id` integer,
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`name` text NOT NULL,
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`description` text,
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`position` integer DEFAULT 0 NOT NULL,
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`bidirectional` integer DEFAULT false NOT NULL,
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`created_at` integer DEFAULT (unixepoch()) NOT NULL,
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`updated_at` integer DEFAULT (unixepoch()) NOT NULL
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);
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--> statement-breakpoint
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CREATE TABLE `sessions` (
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`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
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`lesson_id` integer NOT NULL,
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`started_at` integer DEFAULT (unixepoch()) NOT NULL,
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`ended_at` integer,
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`duration_seconds` integer,
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`cards_shown` integer DEFAULT 0 NOT NULL,
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`cards_correct` integer DEFAULT 0 NOT NULL,
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`cards_incorrect` integer DEFAULT 0 NOT NULL,
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`status` text DEFAULT 'active' NOT NULL,
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`queue_snapshot` text,
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FOREIGN KEY (`lesson_id`) REFERENCES `lessons`(`id`) ON UPDATE no action ON DELETE cascade
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);
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--> statement-breakpoint
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CREATE INDEX `attempts_session_idx` ON `attempts` (`session_id`);--> statement-breakpoint
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CREATE INDEX `attempts_card_idx` ON `attempts` (`card_id`);--> statement-breakpoint
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CREATE INDEX `card_progress_pk` ON `card_progress` (`card_id`,`direction`);--> statement-breakpoint
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CREATE INDEX `card_progress_due_idx` ON `card_progress` (`next_due_at`);--> statement-breakpoint
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CREATE INDEX `cards_lesson_idx` ON `cards` (`lesson_id`);--> statement-breakpoint
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CREATE INDEX `sessions_status_idx` ON `sessions` (`status`); |