Bring back `.get_entry_dict()` functionality

[SlowMo24]

Is your feature request related to a problem? Please describe.

In V1 we had the following workflow:

1. Convert a file to dict
2. use pydantic to convert the dict to our custom types

I cannot fine a clear get_entry_dict() replacement.

Describe the solution you'd like

Convert a .bib file to a dict object.

Use cases

The library seemingly aims at providing the information of a .bib-file to the python program but our use-case is to simply forward the information in a different format.

Describe alternatives you've considered

Workaround code:

    for entry_key, entry_val in library.entries_dict.items():
        entry = dict()
        for field_key, field_val in entry_val.items():
            entry[field_key] = field_val
        entries_dict[entry_key] = entry

Remaining Questions (Optional)
Please tick all that apply:

• I would be willing to contribute a PR to fix this issue.
• This issue is a blocker, I'd be grateful for an early fix.

[MiWeiss]

Thanks for the report! It led to v2.1.0, released today, where dict(entry) now works (#631). The migration guide covers this too (#630):

entries = [dict(entry) for entry in library.entries]
entries_dict = {entry["ID"]: entry for entry in entries}

Note that field values depend on your middleware, so they aren't necessarily strings.

[SlowMo24]

thanks for fixing this so quickly.

Just a quick note: v1 was converting all input attribute keys (except "ID" and "ENTRYTYPE") to lowercase. v2 seems to respect the case given in the .bib-file. I think this is fine, it was just a breaking change for us I wanted to note here.