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A PostgreSQL adapter for Garry's Mod

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gmsv_pg

A PostgreSQL adapter for Garry's Mod.

Installation

The pre-compiled binaries are located in the pg/bin folder.

Copy-paste the gmsv_pg_*.dll to your server's lua/bin folder, where * if your platform's suffix (win32 or linux). Then follow the platform-specific instructions below:

Windows

  1. Make sure you have Microsoft Visual C++ 2015 Redist installed
  2. Navigate to the runtime_depends/windows folder
  3. Copy-paste the folder's contents to your server's root (where srcds.exe is)

Linux

On Linux there are two ways to install dependencies.

via apt

# make sure you have postgresql repositories added beforehand!
sudo apt-get install libpq-dev:i386

the lazy way

  1. Navigate to runtime_depends/linux
  2. Copy-paste the libpq.so.5 file to your server's root (where srcds_linux is)

Please note that even if you do the "lazy way" it might still be necessary to apt-get the libpq-dev:i386 package. If you run into issues, please make sure that it's the first step that you take before complaining.

Usage

This module doesn't have all of the features implemented yet, it's being worked on.

Most of the functions are able to throw Lua errors in case of bad input. Be careful!

Here's a list of everything that is present:

-- Returns a new DatabaseConnection object for PostgreSQL.
function pg.new_connection()

-- Various version strings
pg.version
pg.version_major
pg.version_minor
pg.version_patch
pg.version_suffix

-- DatabaseConnection class

-- Connect to the specified database.
function DatabaseConnection:connect(host, user, password, db, port)

-- Disconnect from current database.
function DatabaseConnection:disconnect()

-- Create a SQL query
--
-- query_string: SQL to execute
--
-- Returns a DatabaseQuery object
function DatabaseConnection:query(query_string)

-- Create a prepared query
--
-- name: ID of the prepared statement
--
-- Returns a PreparedQuery object
function DatabaseConnection:query_prepared(name)

-- Escape dangerous characters in a string.
--
-- Returns an escaped string
function DatabaseConnection:escape(str)

-- Return the escaped string back to normal
--
-- Returns a normal string
function DatabaseConnection:unescape(escaped_str)

-- Quote a string
--
-- Returns a quoted string
function DatabaseConnection:quote(str)

-- Quote a column name
--
-- Returns a quoted string
function DatabaseConnection:quote_name(str)

-- Cancel the current query, if any.
function DatabaseConnection:cancel()

-- Get the server protocol version
--
-- Returns protocol version
function DatabaseConnection:protocol_version()

-- Get the server server version
--
-- Returns server version
function DatabaseConnection:server_version()

-- Activate this connection
--
-- Avoid using this as it's done automatically most of the time.
-- Use only if you know what you're doing.
function DatabaseConnection:activate()

-- Deactivate the currect connection
function DatabaseConnection:deactivate()

-- Get whether the connection is open
function DatabaseConnection:is_open()

-- Prepare a query (register it with the server)
--
-- name: ID of the prepared statement
-- definition: the query itself
--
-- Returns true if successful
function DatabaseConnection:prepare(name, definition)

-- Unprepare the query (unregister it on the server)
--
-- name: ID of the prepared statement
--
-- Returns true if successful
function DatabaseConnection:unprepare(name)

-- Set the current connection encoding
-- Literally all this does:
-- "SET CLIENT_ENCODING TO '" + new_encoding + "';"
--
-- encoding: Encoding to set (default utf8)
function DatabaseConnection:set_encoding(encoding)

-- DatabaseQuery class

-- Execute the current query
function DatabaseQuery:run()

-- Set the query to be synchronous.
-- This will lock the current thread while the query is being executed.
-- USE WITH CAUTION
--
-- sync: set to false for default async behavior
function DatabaseQuery:set_sync(sync)

-- Called once the query returns.
--
-- Callback arguments:
-- result: the result table. Numerically indexed (e.g. { [1] = {...}, [2] = {...} })
-- size: the amount of items in the results table
DatabaseQuery:on("success", function(result, size) end)

-- Called if the query has failed.
--
-- Callback arguments:
-- error: the error message returned by the server
DatabaseQuery:on("error", function(error) end)

-- PreparedQuery
-- PreparedQuery shares all of the members with DatabaseQuery, except for #run:

-- Execute the prepared query
--
-- vararg: which arguments to place into the blank spots of the prepared query.
function PreparedQuery:run(...)

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A PostgreSQL adapter for Garry's Mod

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LICENSE_GLOO.md

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