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[Form] Make difference between data and empty_data options more visisble#7802
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| value will be set. Use the ``data`` or ``placeholder`` options to show this | ||
| initial value in the rendered form. | ||
| If a form is compound, you can set ``empty_data`` as an array with field names |
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whendata_class is null, otherwise it has to match the class set for this option.
| this default value. | ||
| The ``data`` option *always* overrides the value taken from the domain data | ||
| (object) when rendering. This means the object value is also overriden when | ||
| the form edits an already persisted object, causing it to loose it's |
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[...] to lose its persisted [...]
| :doc:`Form data transformers </form/data_transformers>` will still be | ||
| applied to the ``empty_data`` value. This means that an empty string will | ||
| be casted to ``null``. Use a custom data transformer if you explicitly want |
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cast
xabbuh commentedMay 4, 2017
Thank you@wouterj. |
…s more visisble (HeahDude, wouterj, javiereguiluz)This PR was merged into the 2.7 branch.Discussion----------[Form] Make difference between data and empty_data options more visisbleFinishes#6265Fixes#7299,#7596Commits-------64e3984 Fixed a minor typodf9b878 Fixed a minor typof375489 Better explain empty_data valuesd552ea3 Readd mixed type for empty_data, it can be string, array or object188f0ab Tried to write the important points more explicitly5f3813d Updated the example add added a caution4fd2d96 Addressed@stof's comment242941a improved accuracy67c93b6 fix typo87b3542 explicit differences between 'data' & 'empty_data' in FormType
Finishes#6265
Fixes#7299,#7596