arch.diagrams

Package arch.diagrams · Version 0.1.0

Data-modelling primitives for entity / ER-style diagrams. Provides a table module kind and a column interface kind so you can draw schema and relationship diagrams — tables with typed columns and the keys linking them — in the same workspace as the rest of your architecture.

Widgets render tables in the familiar header-plus-rows shape. Import with use table, column from arch.diagrams.

Types

Type	Extends	Description
column	interface	A table column — its name is the column name and its dtype field the type annotation
table	module	Tabular structure — one row per column interface. The dtype field on each column becomes its type annotation, e.g. table Users { column id { dtype: “uuid” } column email { dtype: “text” } }
operation	interface	A class operation / method — a member of a class box
class	module	Two-compartment UML class box, e.g. class Account { column id { dtype: “uuid” } column balance { dtype: “money” } operation deposit { returns: “void” } operation withdraw { returns: “bool” } }
member	interface	An enum member — one named value of an enum box
enum	module	Enumeration, e.g. enum OrderStatus { member pending member shipped { value: 1 } member delivered { value: 2 } }
note	module	Annotation sticky, e.g. note Caveat { “Auth tokens expire after 15 min — refresh flow not shown.” }
state	module	A state-machine state — a node in a state diagram
initial_state	state	The initial pseudo-state a machine starts in — a small filled dot
final_state	state	A terminal state — the double-ring UML final marker

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See also: package.archspace reference · The standard library.