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Adds support for nested property-like arguments for the CFWheels errorMessageOn() view helper.
ColdFusion
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NestedErrorMessageOn.cfc
README.md
index.cfm

README.md

CFWheels Nested errorMessageOn Plugin

This plugin overrides errorMessageOn to accept arguments for nested properties. Basically, you can now use association and position arguments for your nested properties' error messages.

Example

user model with photos association:

// In `init` method of `models/User.cfc`
hasMany("photos");
nestedProperties(association="photos", allowDelete=true);

Photos partial call in views/users/_form.cfm loops over whichever objects are set by model and controller:

#includePartial(user.photos)#

Part of photo form partial at views/users/_photo.cfm uses new association and position arguments in errorMessageOn():

#fileField(
    label="Photo ###arguments.current#",
    objectName="user",
    association="photos",
    position=arguments.current
    property="file"
)#
#errorMessageOn(
    objectName="user",
    association="photos",
    position=arguments.current
    property="file"
)#

Without this plugin, you basically need to do this to "hack" errorMessageOn() to get it to work with the nested property:

<!--- Yuck! Hooray for this plugin! --->
#errorMessageOn(
    objectName="user['photos'][#arguments.current#]",
    property="file"
)#

Contributors

Created by Chris Peters with support from Liquifusion Studios.

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