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chore: reworked some transaction handling code

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This commit is contained in:
Chili Palmer
2026-05-01 16:10:45 +02:00
parent 296a57814f
commit 3133beffcb
3 changed files with 116 additions and 28 deletions
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89
lib/bds/templates.ex
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@@ -111,25 +111,37 @@ defmodule BDS.Templates do
|> Map.put(:updated_at, now)
|> Map.put(:status, next_status)
Repo.transaction(fn ->
updated_template =
template
|> Template.changeset(updates)
|> Repo.update!()
transaction_result =
Repo.transaction(fn ->
updated_template =
template
|> Template.changeset(updates)
|> Repo.update!()
if slug_changed? do
cascade_template_slug_change(template, updated_template, now)
end
affected_posts =
if slug_changed? do
cascade_template_slug_change(template, updated_template, now)
else
[]
end
if template.file_path not in [nil, ""] and next_file_path != template.file_path do
rewrite_template_file(template, updated_template)
end
{updated_template, affected_posts}
end)
updated_template
end)
|> case do
{:ok, updated_template} -> {:ok, updated_template}
{:error, reason} -> {:error, reason}
case transaction_result do
{:ok, {updated_template, affected_posts}} ->
case sync_template_update_side_effects(
template,
updated_template,
affected_posts,
slug_changed?
) do
:ok -> {:ok, updated_template}
{:error, reason} -> {:error, reason}
end
{:error, reason} ->
{:error, reason}
end
end
end
@@ -215,7 +227,13 @@ defmodule BDS.Templates do
%Template{file_path: file_path, status: status} = template
when file_path not in [nil, ""] and status == :published ->
full_path = full_file_path(template.project_id, template.file_path)
:ok = Persistence.atomic_write(full_path, serialize_template_file(template, published_template_body(template)))
:ok =
Persistence.atomic_write(
full_path,
serialize_template_file(template, published_template_body(template))
)
{:ok, template}
%Template{} ->
@@ -368,23 +386,43 @@ defmodule BDS.Templates do
)
|> Repo.update_all(set: [post_template_slug: updated_template.slug, updated_at: updated_at])
affected_posts
end
defp sync_template_update_side_effects(
original_template,
updated_template,
affected_posts,
slug_changed?
) do
Enum.each(affected_posts, fn post ->
Posts.rewrite_published_post(post.id)
end)
Tags.sync_tags_json(original_template.project_id)
if slug_changed? do
Tags.sync_tags_json(original_template.project_id)
end
if original_template.file_path not in [nil, ""] and
updated_template.file_path != original_template.file_path do
rewrite_template_file(original_template, updated_template)
else
:ok
end
end
defp rewrite_template_file(original_template, updated_template) do
body = published_template_body(original_template)
new_full_path = full_file_path(updated_template.project_id, updated_template.file_path)
:ok = Persistence.atomic_write(new_full_path, serialize_template_file(updated_template, body))
if original_template.file_path != updated_template.file_path do
_ = delete_file_if_present(original_template.project_id, original_template.file_path)
result =
Persistence.atomic_write(new_full_path, serialize_template_file(updated_template, body))
if result == :ok and original_template.file_path != updated_template.file_path do
delete_file_if_present(original_template.project_id, original_template.file_path)
else
result
end
:ok
end
defp published_template_body(%Template{content: content}) when is_binary(content), do: content
@@ -444,7 +482,10 @@ defmodule BDS.Templates do
template.file_path != "" and
not is_nil(template.file_path)
)
|> Enum.reject(&(MapSet.member?(tracked_paths, &1.file_path) or File.exists?(full_file_path(project_id, &1.file_path))))
|> Enum.reject(
&(MapSet.member?(tracked_paths, &1.file_path) or
File.exists?(full_file_path(project_id, &1.file_path)))
)
|> Enum.each(fn template ->
clear_template_references(template)
Repo.delete!(template)