Updates

src/lib/schema/build-foreign-key-constraint.ts

@@ -1,15 +1,29 @@
 import type { BUN_MARIADB_FieldSchemaType } from "../../types";
 import MariaDBQuoteGen from "./mariadb-quote-gen";
 
+export function defaultForeignKeyName(
+    tableName: string,
+    fieldName: string,
+): string {
+    return `fk_${tableName}_${fieldName}`;
+}
+
+export function resolveForeignKeyName(
+    field: BUN_MARIADB_FieldSchemaType,
+    tableName: string,
+): string {
+    const fieldName = field.fieldName || "column";
+    return field.foreignKey?.foreignKeyName || defaultForeignKeyName(tableName, fieldName);
+}
+
 export default function buildForeignKeyConstraint(
     field: BUN_MARIADB_FieldSchemaType,
+    tableName: string,
 ): string {
     const fk = field.foreignKey!;
-    const constraintName = fk.foreignKeyName
-        ? `CONSTRAINT ${MariaDBQuoteGen(fk.foreignKeyName)} `
-        : "";
+    const constraintName = resolveForeignKeyName(field, tableName);
 
-    let constraint = `${constraintName}FOREIGN KEY (${MariaDBQuoteGen(field.fieldName!)}) REFERENCES ${MariaDBQuoteGen(fk.destinationTableName!)}(${MariaDBQuoteGen(fk.destinationTableColumnName!)})`;
+    let constraint = `CONSTRAINT ${MariaDBQuoteGen(constraintName)} FOREIGN KEY (${MariaDBQuoteGen(field.fieldName!)}) REFERENCES ${MariaDBQuoteGen(fk.destinationTableName!)}(${MariaDBQuoteGen(fk.destinationTableColumnName!)})`;
 
     if (fk.cascadeDelete) {
         constraint += " ON DELETE CASCADE";