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Implement MySQL relations for schema exports

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This commit is contained in:
James Woodcock
2021-02-16 19:39:00 +00:00
parent 8bf8806d4f
commit 2be45a3a0b
1 changed files with 13 additions and 1 deletions
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14
src/libmdb/backend.c
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@@ -353,7 +353,7 @@ void mdb_init_backends(MdbHandle *mdb)
NULL, NULL,
quote_schema_name_dquote); quote_schema_name_dquote);
mdb_register_backend(mdb, "mysql", mdb_register_backend(mdb, "mysql",
MDB_SHEXP_DROPTABLE|MDB_SHEXP_CST_NOTNULL|MDB_SHEXP_CST_NOTEMPTY|MDB_SHEXP_INDEXES|MDB_SHEXP_DEFVALUES|MDB_SHEXP_BULK_INSERT, MDB_SHEXP_DROPTABLE|MDB_SHEXP_CST_NOTNULL|MDB_SHEXP_CST_NOTEMPTY|MDB_SHEXP_INDEXES|MDB_SHEXP_RELATIONS|MDB_SHEXP_DEFVALUES|MDB_SHEXP_BULK_INSERT,
mdb_mysql_types, &mdb_mysql_shortdate_type, &mdb_mysql_serial_type, mdb_mysql_types, &mdb_mysql_shortdate_type, &mdb_mysql_serial_type,
"current_date", "now()", "current_date", "now()",
"%Y-%m-%d %H:%M:%S", "%Y-%m-%d %H:%M:%S",
@@ -646,6 +646,8 @@ mdb_get_relationships(MdbHandle *mdb, const gchar *dbnamespace, const char* tabl
backend = MDB_BACKEND_ORACLE; backend = MDB_BACKEND_ORACLE;
} else if (!strcmp(mdb->backend_name, "postgres")) { } else if (!strcmp(mdb->backend_name, "postgres")) {
backend = MDB_BACKEND_POSTGRES; backend = MDB_BACKEND_POSTGRES;
} else if (!strcmp(mdb->backend_name, "mysql")) {
backend = MDB_BACKEND_MYSQL;
} else if (!mdb->relationships_table) { } else if (!mdb->relationships_table) {
return NULL; return NULL;
} }
@@ -735,6 +737,16 @@ mdb_get_relationships(MdbHandle *mdb, const gchar *dbnamespace, const char* tabl
";\n", NULL); ";\n", NULL);
break; break;
case MDB_BACKEND_MYSQL:
text = g_strconcat(
"ALTER TABLE ", quoted_table_1,
" ADD CONSTRAINT ", quoted_constraint_name,
" FOREIGN KEY (", quoted_column_1, ")"
" REFERENCES ", quoted_table_2, "(", quoted_column_2, ")",
(grbit & 0x00000100) ? " ON UPDATE CASCADE" : "",
(grbit & 0x00001000) ? " ON DELETE CASCADE" : "",
";\n", NULL);
break;
case MDB_BACKEND_POSTGRES: case MDB_BACKEND_POSTGRES:
text = g_strconcat( text = g_strconcat(
"ALTER TABLE ", quoted_table_1, "ALTER TABLE ", quoted_table_1,