Loading db schema

dbschema.sql

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+create table custom_fields
+(
+    id         integer
+        primary key,
+    name       text not null,
+    identifier text not null
+);
+
+create table decks
+(
+    id       INTEGER
+        primary key autoincrement,
+    name     TEXT not null,
+    forward  TEXT not null,
+    backward TEXT not null,
+    filter   TEXT not null
+);
+
+create table settings
+(
+    id    text
+        primary key,
+    value text
+);
+
+create table word_groups
+(
+    id   INTEGER
+        primary key autoincrement,
+    name TEXT not null
+);
+
+create table words
+(
+    id       INTEGER
+        primary key autoincrement,
+    key      TEXT              not null,
+    value    TEXT              not null,
+    tags     TEXT              not null,
+    more     TEXT,
+    group_id integer default 1 not null
+        constraint words_word_group_id_fk
+            references word_groups
+            on update cascade on delete cascade
+);
+
+create table history
+(
+    id        INTEGER
+        primary key autoincrement,
+    deck_id   INTEGER not null
+        references decks
+            on delete cascade,
+    word_id   INTEGER not null
+        references words
+            on delete cascade,
+    timestamp INTEGER not null,
+    answer    INTEGER not null,
+    before    INTEGER not null,
+    after     INTEGER not null,
+    fsrs      INTEGER not null
+);
+
+create table states
+(
+    id            INTEGER
+        primary key autoincrement,
+    word_id       INTEGER           not null
+        references words
+            on delete cascade,
+    deck_id       INTEGER
+        references decks
+            on delete cascade,
+    score         INTEGER default 1 not null,
+    last_opened   integer           not null,
+    fsrs_opened   integer           not null,
+    fsrs_memory   integer           not null,
+    fsrs_open_day integer           not null
+);
+