Update adapters to conform to new structure

- Added a parent sql adapter class to handle the common behavior between the different adapters

.github/guides/NDATABASE.md

@@ -25,7 +25,7 @@ TBD
 TBD
 ### Filters
 TBD
-# Query
+## Query
 ## Read Single (read_single)
 Executes the given query,
 ## Connection
@@ -109,3 +109,9 @@ BYOND internal database driver: http://www.byond.com/docs/ref/#/database
 
 Uses SQLite as its DB
 > A /database datum gives you the ability to create or access a database using SQLite
+# Database Operations
+## Select
+## Delete
+## Update
+## Insert
+

code/__DEFINES/text.dm

@@ -24,3 +24,6 @@
 #define MAX_PAPER_MESSAGE_LEN 3072
 #define MAX_BOOK_MESSAGE_LEN 9216
 #define MAX_NAME_LEN 28
+
+#define COPY_FROM_START(T, loc) copytext(T, 1, loc)
+#define COPY_AFTER_FOUND(T, loc) copytext(T, loc+1)

code/datums/_ndatabase/code/brsql_persistent_connection.dm

@@ -102,6 +102,6 @@
 	return null
 
 /datum/db/connection/brsql_connection/get_adapter()
-	var/datum/db/adapter/brsql_adapter/adapter = new()
+	var/datum/db/adapter/sql/brsql/adapter = new()
 	adapter.connection = src
 	return adapter

code/datums/_ndatabase/code/entity/entity_meta.dm

@@ -34,6 +34,7 @@
 
 	var/list/datum/entity/managed
 	var/list/datum/entity/key_managed
+	/// List of valid entities that exist in the table
 	var/list/datum/entity/to_read
 	var/list/datum/entity/to_insert
 	var/list/datum/entity/to_update

code/datums/_ndatabase/code/entity/link.dm

@@ -29,8 +29,9 @@
 	/// Entity that is referencing a different entity
 	var/child_entity
 	/// Column on child entity to reference parent entity.
-	/// A typepath to the db_field datum that represents the column
-	var/child_foreign_key
+	/// A typepath to the db_field datum that represents the column that is casted for access to
+	/// values from the field's type definition
+	var/datum/db_field/child_foreign_key
 
 	var/datum/entity_meta/parent_meta
 	var/datum/entity_meta/child_meta