Liferay 7/DXP have provided very interactive web content
creation and it is providing structures and templates to design web content.
Structure will use to defined data structure and
template will provide look and feel to defined data structure.
To create structures Liferay internally using Dynamic
Data Mapping (DDM) and it will provide nice user interface to create web content
structures. It will provide default DDM form fields Text, Checkbox, Radio, TextArea,
TextHTML, Number, Boolean, Date and Decimal.
These are very regular fields we can use to defined
web content data structures. Liferay also
provided way to create custom DDM fields based on requirement. Creating custom DDM
field will help us to complete real work application needs.
Assume we wanted mobile number field and it have certain
validations. Liferay already have text field but it may not full fill mobile number
input requirements.
DDM Custom filed will address such requirements so
that we can create our own brand new DDM custom fields.
Default Liferay provided ddm fields
Implementing custom DDM field is required to override few
of AUI modules and implement DDM provided component classes.
We can divide implantation into 3 parts
- Existing prtal provided module JavaScript changes
- Implementing OSGi component java classes
- Implement DDM FTL templates
Existing Portal provided module JavaScript changes
Overriding AUI modules
We need to override following two AUI modules and need
to add custom DDM field AUI component.
liferay-portlet-dynamic-data-mapping-custom-fields
liferay-portlet-dynamic-data-mapping
These modules are available in portal source code of “dynamic-data-mapping-web”.
Add Liferay-JS-Config header in bnd file
To override above modules, OSGi use “Liferay-JS-Config”
extender and it will help to load overridden modules at run time. Config.js is place
to define overridden AUI modules information.
The following is header in bnd.bnd file in
module to use “Liferay-JS-Config” extender.
Liferay-JS-Config:
/META-INF/resources/js/config.js
|
Add Custom Filed Information in “AVAILABLE_FIELDS”
List
Its is required to add custom field information in main_overriden.js
file
Example
//add field type to this list
{
hiddenAttributes: MAP_HIDDEN_FIELD_ATTRS.DEFAULT,
iconClass: 'number',
label: 'Mobile Number',
type: 'ddm-mobile-number'
}
|
Create AUI Component Plugin
Custom AUI Field component plugin will consist of
field attributed and its look and feel editors.
Need to add following component creation code in “custom_fields_override.js”
Example AUI Custom Field Component
//Create custom field component plugin
var regexString = "/^(\\+\\d{1,3}[- ]?)?\\d{10}$/i"
var customFieldHTML = '<input class="form-builder-field-node field-input
field-input-text form-control"></input>'
var DDMMobileNumberField = A.Component.create(
{
ATTRS:
{
customCssClass:
{
value:
''
},
fieldWidth:
{
value:
''
},
mobileNumberValidationMassage:
{
value:
'Please enter valid mobile number'
},
mobileNumberRegex:
{
value:
regexString
},
dataType:
{
value:
'string'
},
fieldNamespace:
{
value:
'ddm'
}
},
EXTENDS:
A.FormBuilderTextField,
NAME:
'ddm-mobile-number',
prototype:
{
getHTML:
function() {
return customFieldHTML;
},
getPropertyModel:
function() {
var instance = this;
var model =
originalGetPropertyModel.call(instance);
return model.concat(
[
{
attributeName: 'customCssClass',
editor:
new
A.TextAreaCellEditor(),
name:
'Custom CSS Class'
},
{
attributeName: 'mobileNumberValidationMassage',
editor:
new
A.TextAreaCellEditor({
validator: {
rules: {
value: {
required: true,
}
}
}
}),
name:
'Mobile Number Validation Massage'
},
{
attributeName: 'mobileNumberRegex',
editor:
new
A.TextCellEditor({
validator: {
rules: {
value: {
required: true,
}
}
}
}),
name:
'Mobile Number Regex'
},
{
attributeName: 'fieldWidth',
editor:
new A.DropDownCellEditor(
{
options : {
large : 'large',
medium : 'medium',
small : 'small'
}
}),
name:
'Field Width'
}
]
);
}
}
}
);
|
Each field setting attribute required editor to take
input from end user, Field Width is using Drop Down cell editor will
have few options to select. It will be as follows in the Structure Creation UI.
Implementing required OSGi component java classes
Following are basic OSGi components which required for
DDM custom field. We really don’t need to implement everything and we can get
original code from portal source and then modify some piece of code.
DDMFormFieldType
Need to override getName method and it should
return custom field name.
DDMFormFieldValueRenderer
DDMFormFieldFreeMarkerRendererHelper
DDM
In “getDDMFormFieldsJSONArray” method need to add
custom filed attributes.
CustomFieldDDMFormFieldTypeSettings
DDMFormFieldRenderer
Add custom
field attributes to fieldContext in
addStructureProperties method.
Implement required DDM FTL templates
Custom field is required few ftl templates to
render fields in the web content.These templates related code in “DDMFormFieldRenderer” component class. “default.ftl” is template will render read only
view while render in the web content.Custom field template ftl file have all render logic
which configured while creating field.
Field type name defined in “DDMFormFieldType” component
should be with ddm-*. Example of filed type name is “ddm-mobile-number”
Template name should be without ddm-, it means
template name should be “mobile-number.ftl”.
Example of FTL template name and field
type name
Example code of custom field template
<#--Field
Settings defined for Mobilde Number field and fetch the values -->
<#assign
cssClass = "" />
<#if
fieldStructure.fieldWidth??>
<#if
stringUtil.equals(fieldStructure.fieldWidth, "large")>
<#assign cssClass =
"input-large" />
<#elseif stringUtil.equals(fieldStructure.fieldWidth,
"medium")>
<#assign cssClass =
"input-medium" />
<#elseif
stringUtil.equals(fieldStructure.fieldWidth, "small")>
<#assign cssClass =
"input-small" />
</#if>
</#if>
<#assign
cssClass += " " />
<#assign
cssClass += "${fieldStructure.customCssClass}" />
<#assign
data = data + {
"ddmAuthToken": ddmAuthToken
}>
<#--FMobilde
Number field with validation -->
<@liferay_aui["field-wrapper"]
cssClass="form-builder-field"
data=data
>
<div class="form-group">
<@liferay_aui.input
cssClass=cssClass
dir=requestedLanguageDir
helpMessage=escape(fieldStructure.tip)
label=escape(label)
name=namespacedFieldName
required=required
type="text"
value=fieldValue
>
<@liferay_aui.validator
errorMessage="${fieldStructure.mobileNumberValidationMassage}"
name="custom">
function(val, fieldNode,
ruleValue) {
var regex = new
RegExp(${fieldStructure.mobileNumberRegex});
return regex.test(val);
}
</@liferay_aui.validator>
</@liferay_aui.input>
</div>
${fieldStructure.children}
</@>
|
Portal Source code references 7.2 GA2
GitHub Source
Gradle Module
Maven Module
Author
Posts
Just wanted to ask, can we use CartoDB for creating visualizations? I have heard it is fast and a lot easier for data mapping and visualizations.
ReplyDeleteI really appreciate this wonderful post that you have provided for us. I assure this would be beneficial for most of the people. data entry products
ReplyDeleteVery well written post. Thanks for sharing this, I really appreciate you taking the time to share with everyone. PMP Certification
ReplyDeleteI appreciated your work very thanks Windows based CRM
ReplyDeleteWhat is an outstanding post! “I’ll be back” (to read more of your content). Thanks for the nudge! Legacy data archiving
ReplyDeleteNice post, Thanks for sharing. Australian University Transfer Arrangements- FTS
ReplyDeleteA Non-Disclosure Agreement (NDA) will be marked or Corporate and Business Clients to guarantee privacy of information from accommodation of media to information conveyance.data recovery tips & solutions
ReplyDeleteThe team's consistently high-quality work has enabled the business to be a competitor in its market
ReplyDeleteBay Area web design company
If you have just a few people to verify, the online option is the better choice. If you need to verify a large quantity, you'll need to create a file and mail it in.numbersdata.com
ReplyDeleteThe fundamental contrast from the actual item is that the service is immaterial, so genuinely individuals purchase nothing. This element is vital and it characterizes the other service perspectives. IT company Hamilton
ReplyDeleteI would like to say that this blog really convinced me to do it! Thanks, very good post. custom basketballs
ReplyDeleteA player is likely to get assistance in a day since a technical
ReplyDeleteproblem is reported. Software downloads don't cost anything, nevertheless
they have certain hardware specifications.
Finnish poker pro Jens Kyllonen can make history when he becomes one of the primary individuals
to attempt a passenger voyage to space in 2014.안마
Wow, cool post. I'd like to write like this too - taking time and real hard work to make a great article... but I put things off too much and never seem to get started. Thanks though. visit this page
ReplyDeleteAnother type of data recovery software is one designed to find and/or fix lost or corrupted files. Again, the hazard is that every piece of data you write to the disk could overwrite the file you are trying to restore. Melbourne Data recovery
ReplyDeleteI definitely enjoying every little bit of it. It is a great website and nice share. I want to thank you. Good job! You guys do a great blog, and have some great contents. Keep up the good work. tape storage
ReplyDeleteI like to recommend exclusively fine plus efficient information and facts, hence notice it: read here
ReplyDeleteIt is especially decent, though look into the tips during this home address. buy economics assignment
ReplyDeleteblisters for concentrate homes, also known as mobile homes, are factory-produced homes that can be transported anywhere and installed at a selected site with or without a permanent foundation. Manufactured homes have revolutionized the American housing market by providing affordability and flexibility to potential buyers.
ReplyDeleteI think this is an informative post and it is very useful and knowledgeable. therefore, I would like to thank you for the efforts you have made in writing this article. marijuana packaging
ReplyDeleteOne of the advantages of IPTV is its capability to get easily integrated with other IP-based services such as VOIP or high-speed internet. The company pandar iptv subscription provides you a great support with re-selling plan, compatibility, server stability and like iptv m3u, many other interesting feature just with a good, satisfying and reasonable price.
ReplyDeleteHi there, I discovered your blog per Google bit searching for such kinda educational advise moreover your inform beholds very remarkable for me. Help With Data Analysis For Dissertation
ReplyDeleteEfficiently written information. It will be profitable to anybody who utilizes it, counting me. Keep up the good work. For certain I will review out more posts day in and day out. 메이저사이트
ReplyDeleteWhat a thrilling post. It is extremely chock-full of useful information. Thanks for such a great info. 메이저사이트
ReplyDeleteIt is included in my habit that I often visit blogs in my free time, so after landing on your blog. I have thoroughly impressed with it and decided to take out some precious time to visit it again and again. Thanks. 먹튀검증
ReplyDelete