Creating a Linear issue from Chatwoot fails with a GraphQL parse error
when the title, description, or search term contains double quotes. For
example, a description like `the sender is "Bot"` produces this broken
query:
```graphql
issueCreate(input: { description: "the sender is "Bot"" })
```
Linear's API rejects this with `Syntax Error: Expected ":", found
String`. This affects issue creation, issue linking, and issue search —
any flow where user-provided text is interpolated into a GraphQL query.
The `graphql_value` helper was only escaping newlines (`\n`) but not
quotes, backslashes, or other characters that are meaningful inside a
GraphQL string literal. On top of that, `issue_link` and `search_issue`
bypassed `graphql_value` entirely, using raw string interpolation
instead.
The fix replaces the manual `gsub` escaping with Ruby's `to_json`, which
produces a properly escaped, double-quoted string that handles all
special characters. This is a minimal, well-understood substitution —
`to_json` on a Ruby string returns a valid JSON string literal, which is
also a valid GraphQL string literal since GraphQL uses the same escaping
rules. The `issue_link` mutation and `search_issue` query are updated to
route their parameters through `graphql_value` instead of raw
interpolation.
The `team_entities_query` and `linked_issues` methods in `queries.rb`
also use raw interpolation, but their inputs are system-generated IDs
and URLs rather than user-provided text, so they're left as-is to keep
this change focused.
67112647e8