dimgigov
6bfc5b3a3c
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- Pure Nim wire protocol client (async + sync, no C FFI) - Query Builder: fluent API, SQL generator, execution, transactions - Schema Builder: create/alter/drop tables, column operations - Connection pool with aging and timeout handling - ORM integration via compile-time DB_BARADB switch - Tests: test_open, test_query - Documentation: README.md, PLAN_BARADB.md
63 lines
1.9 KiB
Nim
63 lines
1.9 KiB
Nim
import std/asyncdispatch
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import std/json
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import ../../src/allographer/query_builder
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import ../../src/allographer/schema_builder
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import ../../src/allographer/connection
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let rdb = dbOpen(SurrealDB, "ns", "database", "user", "pass", "http://surreal", 8000, shouldDisplayLog=true).waitFor()
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rdb.raw("""
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REMOVE TABLE `_sequences`;
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REMOVE EVENT `set_user_index` ON TABLE `user`;
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REMOVE TABLE `user`;
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REMOVE TABLE `auth`;
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""").exec().waitFor()
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rdb.raw("""
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DEFINE TABLE `_sequences`;
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DEFINE FIELD `table_name` ON TABLE `_sequences` TYPE string;
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DEFINE FIELD `max_index` ON TABLE `_sequences` TYPE int;
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DEFINE INDEX `_sequences_table_name_unique` ON TABLE `_sequences` COLUMNS `table_name` UNIQUE;
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""").exec().waitFor()
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rdb.raw("""
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DEFINE TABLE `user`;
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INSERT INTO `_sequences` {table_name: "user", max_index: 0};
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DEFINE FIELD `index` ON TABLE `user` TYPE int;
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DEFINE FIELD `name` ON TABLE `user` TYPE string;
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""").exec().waitFor()
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rdb.raw("""
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DEFINE EVENT `set_user_index` ON TABLE `user` WHEN $event = "CREATE" THEN {
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LET $val = (SELECT `max_index` FROM `_sequences` WHERE `table_name` = "user" LIMIT 1)[0].max_index + 1;
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UPDATE `user` MERGE {index: $val} WHERE id = $after.id;
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UPDATE `_sequences` MERGE {max_index: $val} WHERE table_name = "user";
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};
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""").exec().waitFor()
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echo rdb.raw("""
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INSERT INTO `user` {name: "user1"};
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SELECT * FROM `user`;
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SELECT * FROM `_sequences`;
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""").info().waitFor()
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echo rdb.raw("""
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UPDATE `user` MERGE {name: "updated"} WHERE `name` = "user1";
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SELECT * FROM `user`;
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SELECT * FROM `_sequences`;
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""").info().waitFor()
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echo rdb.raw("""
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INSERT INTO `user` {name: "user2"};
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SELECT * FROM `user`;
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SELECT * FROM `_sequences`;
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""").info().waitFor()
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echo rdb.raw("""
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UPDATE `user` MERGE {name: "updated2"} WHERE `name` = "user2";
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SELECT * FROM `user`;
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SELECT * FROM `_sequences`;
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""").info().waitFor()
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