Contributing & Filing Issues

We welcome all types of contributions, following the all-contributors specification. And please take a look at our wonderful contributors on the README!

The most common type of contribution is to fix an incorrect SQL generation for a database grammar.

To debug what SQL is being ran, you can always call toSQL on any QueryBuilder or SchemaBuilder object. Additionally, you can listen to the preQBExecute interception point for the generated SQL.

Each of the database grammars have two tests — {Grammar}QueryBuilderSpec.cfc and {Grammar}SchemaBuilderSpec.cfc. These tests run the same qb syntax across the different grammars. In each test are methods that return SQL strings like so:

// MSSQLQueryBuilderSpec.cfc
function orWhere() {
    // If just a string is returned, we assume the bindings is an empty array ([])
    return {
        sql = "SELECT * FROM [users] WHERE [id] = ? OR [email] = ?",
        bindings = [ 1, "foo" ]
// OracleSchemaBuilderSpec.cfc
function boolean() {
    // returns an array since schema builder can execute multiple statements.
    return [ "CREATE TABLE ""USERS"" (""ACTIVE"" NUMBER(1, 0) NOT NULL)" ];

If you find an issue with the SQL generated from a grammar, please file a pull request with the correct SQL in these tests. It's okay if you don't submit a fix as well. (But we'd greatly appreciate it!) Doing so will help expedite the fix.

If you want to add support for a new database grammar, simply copy these two tests from an existing grammar, rename them, change the getBuilder method to return your new grammar, and fill out the SQL as it should be. That will guide your implementation to be 100% compatible with the other grammars in qb.

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