[BACKPORT 2.1] [BUGFIX] All UI input fields should have maxlength of 255 because of …

[lewisvoncken]

…VARCHAR maxlength 255 in the database

same as magento-partners/magento2ce#61

Description

When you save an input field in the Admin or Frontend area with a value greater then 255 characters the actual saved data in the database is 255 characters.

Fixed Issues (if relevant)

1. Meta description allows too many characters #6238: Meta description allows too many characters

Manual testing scenarios

1. Create a Test product
2. Paste a string with more then 255 characters in the Meta Description or the Name
3. Now the value is visible but after saving the value will be set to 255 characters

Apply Changes and Now it is possible to only insert 255 characters in the UI input fields

See the following image with the max length of 255 for the value column in the varchar column

[magento-engcom-team]

@lewisvoncken Could you look at Meta Description field as maxlength: 255 not applied for it. This field has differences in v2.1 and v2.2
v2.1

v2.2

[okorshenko]

Hi @lewisvoncken
We are closing this PR for now. Feel free to reopen it once ready

[Ctucker9233]

@okorshenko I'll pick this up. I was the one who reported the original issue. What needs to be looked at?