Importing Dash.jl component libraries prior to Dash throws a "UndefVarError: DashBase not defined" error

[rpkyle]

While generating the Julia version of DashUserGuideComponents, I noticed that the Project.toml doesn't contain an entry for DashBase, e.g.

name = "DashUserGuideComponents"
uuid = "1b08a953-4be3-4667-9a23-e667f8ac7b1d"
authors = ["Chris P <chris@plotly.com>"]
version = "0.0.4"

[deps]
Dash = "1b08a953-4be3-4667-9a23-3db579824955"

[compat]
julia = "1.2"
Dash = "0.1"

Glancing at DashCoreComponents, it looks like the Project.toml includes an entry for DashBase in both the [deps] and [compat] sections.

@waralex @alexcjohnson

[alexcjohnson]

Yes, that’s expected. The core (dcc, html, table) depend on DashBase so that Dash can depend on them, rather than the other way around as non-core component packages do.

[rpkyle]

Yes, that’s expected. The core (dcc, html, table) depend on DashBase so that Dash can depend on them, rather than the other way around as non-core component packages do.

OK. I'm guessing that load order is important, then, since I see

julia> using DashUserGuideComponents
[ Info: Precompiling DashUserGuideComponents [1b08a953-4be3-4667-9a23-e667f8ac7b1d]
ERROR: InitError: UndefVarError: DashBase not defined
Stacktrace:
 [1] __init__() at /home/rpkyle/PlotlyRepos/dash-docs/dash-user-guide-components/src/DashUserGuideComponents.jl:12
 [2] run_repl(::REPL.AbstractREPL, ::Any) at /build/julia/src/julia-1.5.2/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:288
during initialization of module DashUserGuideComponents

julia> using Dash

julia> using DashUserGuideComponents

If that's true, we'll just have to be careful to note this in the documentation since it may cause some confusion otherwise. Closing.

[alexcjohnson]

Hmm, so dugc is trying to import DashBase? It shouldn’t, it should get the base component class from Dash instead.

[alexcjohnson]

@waralex if I'm understanding this correctly we just need to have DashBase in these lines:

dash/dash/development/_jl_components_generation.py

Lines 62 to 63 in 938c3ca

	DashBase.register_package(
	DashBase.ResourcePkg(

dash/dash/development/_jl_components_generation.py

Line 92 in 938c3ca

jl_resource_tuple_string = """DashBase.Resource(

swap to Dash based on whether we're building a core or non-core package, right?

dash/dash/development/_jl_components_generation.py

Lines 363 to 364 in 938c3ca

	def base_package_name(project_shortname):
	return "DashBase" if is_core_package(project_shortname) else "Dash"

[waralex]

This is pretty weird, I'm trying to figure out what the problem is

[rpkyle]

@alexcjohnson I think we can close this one once Dash.jl is updated via the Registrator, at least on my end the error no longer appears in v0.1.3.