InfluxDB: Fix for wrong query generated with template variable and non regex operator on frontend mode

[wasim-nihal]

What is this feature?

When using a single value regex variable with a non-regex operator (e.g. =), and you convert the query from builder to code editor, it leaves the regex wrapper around the variable in the expression, and wraps that in a single quote, which leads to a broken query expression. This PR is fixing it.

Why do we need this feature?

Better query generation while switching between editors

Who is this feature for?

InfluxDB users building InfluxQL queries on grafana

Which issue(s) does this PR fix?:

Fixes #81517

Special notes for your reviewer:

Please check that:

• It works as expected from a user's perspective.
• If this is a pre-GA feature, it is behind a feature toggle.
• The docs are updated, and if this is a notable improvement, it's added to our What's New doc.

[CLAassistant]

All committers have signed the CLA.

[itsmylife]

@wasim-nihal The PR looks good. But in the CI there are some errors. Could you please run yarn prettier:write and commit the changes?

[wasim-nihal]

@wasim-nihal The PR looks good. But in the CI there are some errors. Could you please run yarn prettier:write and commit the changes?

sure.

[wasim-nihal]

Done. Could you please re-trigger?

[NWRichmond]

Nice! It appears to work as expected:

demo.fix.81517.mov

I made a few suggestions. Probably the most pressing one is fixing the infuxdb > InfluxDB spelling issues.

[itsmylife]

LGTM

Could you please check @NWRichmond 's comments too? Then I think we are good to go. Thanks for this contribution!

[wasim-nihal]

@itsmylife , @NWRichmond , thanks for reviewing this change. I have addressed the comments in the latest commit.

[wasim-nihal]

Seeing some linting issues again in CI. Will push the changes.

[wasim-nihal]

Seeing some linting issues again in CI. Will push the changes.

Done

[itsmylife]

I triggered the build and waiting for it to start. Thanks for the fixes.

[itsmylife]

@wasim-nihal Thank you for the contribution once more! 🚀