Values suddenly returned html encoded in template?

[Axxoul]

Play Version (1.5.x / etc)

1.7.1

Operating System (Ubuntu 15.10 / MacOS 10.10 / Windows 10)

Windows 11

JDK (Oracle 1.8.0_72, OpenJDK 1.8.x, Azul Zing)

jdk-11.0.15.1

Library Dependencies

db.driver=com.mysql.cj.jdbc.Driver
jpa.dialect=org.hibernate.dialect.MySQL8Dialect
hibernate.temp.use_jdbc_metadata_defaults=false

Expected Behavior

My template fetches temperatures in the database using : ${obj.minTemp}
All values are stored in mysql database as DOUBLES

With play 1.5, for negative temperatures, I would get -15 --> Expected

Actual Behavior

Since upgrading to Play 1.7.1, ${obj.minTemp} returns −15
When calling .raw() I get −15 which is causing the JS to fail since the returned − is not being parsed as -

[asolntsev]

@Axxoul but why is this a problem? Yes, it's normal to encode all texts before rendering them in html.

[tazmaniax]

@Axxoul can you provide some more code showing how you're using ${obj.minTemp} in the template?

[Axxoul]

PS: I just upgraded from 1.5 (where everything was OK) to 1.71. I am guessing this is to do with the data being mistakenly treated as a string from the mysql DB ?

@asolntsev This is a problem since it is breaking our Javascript.
@tazmaniax see below:

series: [{
	name: 'temp',
	color: '#000000',
	data: [#{list items:prod.weather(), as:'w'} ${w.avgTemp()} #{if w_isLast}#{/if}#{else},#{/else}#{/list}]
}]

this renders to:

series: [{
	name: 'Medel',
	color: '#000000',
	data: [ −3 ,   −6 ,   −2 ,   4 ,   7 ,   12 ,   15 ,   15 ,   12 ,   8 ,   3 ,   −3    ]
}]

which breaks the JS

[Axxoul]

Ok just checked and avgTemp() returns a String.

So I guess this is working as intended, but Play 1.5 was just returning the string "as is" (i.e. -15) whereas somewhere along the upgrades the string is returned encoded? (i.e −15)

[asolntsev]

@Axxoul Is this series: [{ ... }] inside of a <script> block?
The initial idea was to make the encoding smart: values inside of html and javascript blocks should be encoded differently. So JS code should stay valid in theory.