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DEV: Gracefully handle regex_replace max column length violations (#29787)

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* DEV: Gracefully handle `regex_replace` violations of column length constraints

This is a follow-up to the `remap` [refactor](9b0cfa99c5).
Similar to `remap`, the entire `regex_replace` operation fails if the new content exceeds the column’s max length.

This change introduces an optional mode, controlled by the new `skip_max_length_violations` param
to skip records eligible for `regex_replace`  where the new content violates the max column length constraint.

It also includes updates to the exception message raised when `regex_replace` fails to include more details

* DEV: Remove string escapes in heredoc text
This commit is contained in:
Selase Krakani
2024-11-25 11:39:53 +00:00
committed by GitHub
parent 118f7869bb
commit a20b7fa83f
2 changed files with 114 additions and 43 deletions
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48
spec/lib/db_helper_spec.rb
View File

@ -1,12 +1,12 @@
# frozen_string_literal: true
RSpec.describe DbHelper do
describe ".remap" do
fab!(:bookmark1) { Fabricate(:bookmark, name: "short-bookmark") }
fab!(:bookmark2) { Fabricate(:bookmark, name: "another-bookmark") }
let(:bookmark_name_limit) { Bookmark.columns_hash["name"].limit }
let(:long_bookmark_name) { "a" * (bookmark_name_limit + 1) }
fab!(:bookmark1) { Fabricate(:bookmark, name: "short-bookmark") }
fab!(:bookmark2) { Fabricate(:bookmark, name: "another-bookmark") }
let(:bookmark_name_limit) { Bookmark.columns_hash["name"].limit }
let(:long_bookmark_name) { "a" * (bookmark_name_limit + 1) }
describe ".remap" do
it "should remap columns properly" do
post = Fabricate(:post, cooked: "this is a specialcode that I included")
post_attributes = post.reload.attributes
@ -97,5 +97,43 @@ RSpec.describe DbHelper do
expect(post.reload.raw).to include("[img]something[/img]")
end
context "when skip_max_length_violations is false" do
it "raises an exception if regexp_replace exceeds column length constraint by default" do
expect { DbHelper.regexp_replace("bookmark", long_bookmark_name) }.to raise_error(
PG::StringDataRightTruncation,
/value too long.*table: bookmarks,.*name/,
)
end
end
context "when skip_max_length_violations is true" do
it "skips regexp_replace eligible rows if new value exceeds column length constraint" do
DbHelper.regexp_replace("bookmark", long_bookmark_name, skip_max_length_violations: true)
bookmark1.reload
bookmark2.reload
expect(bookmark1.name).to eq("short-bookmark")
expect(bookmark2.name).to eq("another-bookmark")
end
it "logs skipped regexp_replace due to max length constraints when verbose is true" do
expect {
DbHelper.regexp_replace(
"bookmark",
long_bookmark_name,
verbose: true,
skip_max_length_violations: true,
)
}.to output(/SKIPPED:/).to_stdout
bookmark1.reload
bookmark2.reload
expect(bookmark1.name).to eq("short-bookmark")
expect(bookmark2.name).to eq("another-bookmark")
end
end
end
end