Check support in columns

src/column-presets.ts

@@ -2,12 +2,19 @@ import type { ColumnShorthand } from "./columns";
 import type { Table } from "./table";
 
 export const ColumnOf = {
-  PrimaryKey: {
+  Primary: {
+    Int: {
       type: "INTEGER",
       primary: true,
       autoincrement: true,
     },
 
+    Text: {
+      type: "TEXT",
+      primary: true,
+    },
+  },
+
   Text: {
     type: "TEXT",
     nullable: false,

src/columns.ts

@@ -20,6 +20,7 @@ export interface Column {
   default: string | number | undefined;
   unique: boolean;
   autoincrement: boolean;
+  check: string;
 }
 
 export type ColumnShorthand = DataType | Partial<Column>;
@@ -61,6 +62,10 @@ export function generateColumnDefinitionSQL(
     }
   }
 
+  if (colDef.check) {
+    parts.push(`CHECK (${colDef.check})`);
+  }
+
   if (colDef.misc.length) {
     parts.push(colDef.misc);
   }
@@ -80,6 +85,7 @@ function expandColumnShorthand(col: ColumnShorthand): Column {
       default: undefined,
       unique: false,
       autoincrement: false,
+      check: "",
     };
   }
 
@@ -93,6 +99,7 @@ function expandColumnShorthand(col: ColumnShorthand): Column {
     default: col.default ?? undefined,
     unique: col.unique ?? false,
     autoincrement: col.autoincrement ?? false,
+    check: col.check ?? "",
   };
 }
 

src/prequel.ts

@@ -77,11 +77,7 @@ export class PrequelKVStore {
    * @returns `true` if the key exists, `false` otherwise.
    */
   has(key: string): boolean {
-    return (
+    return this.table.existsWhere({ key });
-      this.table.findOneWhere({
-        key,
-      }) !== null
-    );
   }
 
   /**
@@ -89,7 +85,10 @@ export class PrequelKVStore {
    * @returns The keys in the store.
    */
   keys(): string[] {
-    return this.table.findAll().map((row) => row.key);
+    return this.table
+      .prepare<{ key: string }, []>(`SELECT key FROM ${this.table}`)
+      .all()
+      .map(({ key }) => key);
   }
 
   /**
@@ -97,7 +96,10 @@ export class PrequelKVStore {
    * @returns The values in the store.
    */
   values(): unknown[] {
-    return this.table.findAll().map((row) => JSON.parse(row.value));
+    return this.table
+      .prepare<{ value: string }, []>(`SELECT value FROM ${this.table}`)
+      .all()
+      .map(({ value }) => JSON.parse(value));
   }
 }