Add support for columnType in Mongoose

[derrickmehaffy]

Signed-off-by: Derrick Mehaffy derrickmehaffy@gmail.com

What does it do?

Mirrors functionality of Bookshelf for custom types:

strapi/packages/strapi-connector-bookshelf/lib/build-database-schema.js

Lines 149 to 152 in 6b6c1e2

	// allow custom data type for a column
	if (_.has(attribute, 'columnType')) {
	return table.specificType(name, attribute.columnType);
	}

Why is it needed?

Custom fields and assigning a field a specific type in the database, such as with this guide

Related issue(s)/PR(s)

N/A reported on slack

[codecov]

Codecov Report

Merging #8723 (e397b5c) into master (7dadfcc) will decrease coverage by 8.31%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8723      +/-   ##
==========================================
- Coverage   33.65%   25.33%   -8.32%     
==========================================
  Files        1248     1129     -119     
  Lines       13765     9823    -3942     
  Branches     1365      563     -802     
==========================================
- Hits         4632     2489    -2143     
+ Misses       8243     6832    -1411     
+ Partials      890      502     -388     

Flag	Coverage Δ
front	25.33% <ø> (ø)
unit	?

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Impacted Files	Coverage Δ
packages/strapi-admin/services/metrics.js
...ckages/strapi-generate/lib/helpers/folder/index.js
packages/strapi-generate/lib/generate.js
test/helpers/create-context.js
packages/strapi-plugin-upload/utils/file.js
.../strapi-admin/validation/common-functions/index.js
...ilder/services/schema-builder/component-builder.js
...ackages/strapi-utils/lib/template-configuration.js
packages/strapi-admin/services/user.js
packages/strapi/lib/core-api/controller.js
... and 109 more

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[alexandrebodin]

columnType is a string and mongoose don't know what to do with it most of the time it needs a constructor. Unless you use a model in pure js and not json it won't be usable. What is the usecase in mongoose ?

[derrickmehaffy]

@alexandrebodin it was related to custom fields (the color picker from that guide I linked) I had someone test it out and it worked for them.

[derrickmehaffy]

Per our convo Alex, they won't be able to pass in the Mongo constructor without breaking the CTB but it could be done via the model.js with the attributes.

[alexandrebodin]

LGTM thanks for the addition :D

[derrickmehaffy]

This pull request has been mentioned on Strapi Community Forum. There might be relevant details there:

https://forum.strapi.io/t/add-button-as-custom-field/1410/4