Hello, I am trying to pull values from a custom metadata set and display it as an additional column on the view/gridview along with Title, Size, Created Date. And I am having a hard time figuring out exactly what to do in my hook. I see bits and pieces of code all over the place, but I'm not sure exactly how to extend the classes to add this. I've been able to add a column to be seen on the gridview by adding an entry to the init.jsp file by adding the following around line number 151:
Before:
String defaultEntryColumns = "name,size";
After:
String defaultEntryColumns = "name,size,myNewColumn";
Then I found where you add a condition for it in view_entries.jsp, but when I output fileEntryTypeId in this if statement, I keep getting a "-1"
if (columnName.equals("myNewColumn")) {
//Logic code here
}
Also in view_entries.jsp I see the following code which gets the fileEntryTypeId, which is one of the keys I need to tap into getting the metadata since the DLFileEntry doesn't have a property for this, but I'm not sure how to tap into this to get what I need and post in in the view/gridview:
List results = null;
//List metaDataresults = null;
int total = 0;
if (fileEntryTypeId >= 0) {
Indexer indexer = IndexerRegistryUtil.getIndexer(DLFileEntryConstants.getClassName());
if (fileEntryTypeId > 0) {
DLFileEntryType dlFileEntryType = DLFileEntryTypeLocalServiceUtil.getFileEntryType(fileEntryTypeId);
dlFileEntryTypeName = dlFileEntryType.getName();
}
Also, in edit_file_entry, I see the following code which looks like it pertains, but I don't understand how to use it (starting at line 334):
<%
if (fileEntryTypeId > 0) {
try {
List<DDMStructure> ddmStructures = dlFileEntryType.getDDMStructures();
for (DDMStructure ddmStructure : ddmStructures) {
Fields fields = null;
try {
DLFileEntryMetadata fileEntryMetadata = DLFileEntryMetadataLocalServiceUtil.getFileEntryMetadata(ddmStructure.getStructureId(), fileVersionId);
fields = StorageEngineUtil.getFields(fileEntryMetadata.getDDMStorageId());
}
catch (Exception e) {
}
%>
<%= DDMXSDUtil.getHTML(pageContext, ddmStructure.getXsd(), fields, String.valueOf(ddmStructure.getPrimaryKey()), locale) %>
I also see that the table "DDMContent" gets populated with two rows when you add a document that has metadata fields. One row is for the automatically extracted data, and the other has the custom data from my custom metadata set.
I am trying to implement the following class solutions:
public class MyDLAppLocalService implements DLAppLocalService {}
and
public class MyDLFileEntryMetadataLocalService implements
DLFileEntryMetadataLocalService {}
and
public class MyDLAppLocalServiceImpl extends DLAppLocalServiceWrapper {
public MyDLAppLocalServiceImpl(DLAppLocalService dlAppLocalService) {
super(dlAppLocalService);
// TODO Auto-generated constructor stub
}
}
and
public MyDLAppLocalServiceWrapper(FileEntry fileEntry){
super((DLAppService) fileEntry);
}
}
Here is my liferay-hook.xml:
<?xml version="1.0"?>
<!DOCTYPE hook PUBLIC "-//Liferay//DTD Hook 6.1.0//EN" "http://www.liferay.com/dtd/liferay-hook_6_1_0.dtd">
<hook>
<custom-jsp-dir>/META-INF/custom_jsps</custom-jsp-dir>
<service>
<service-type>com.liferay.portlet.documentlibrary.service.DLAppLocalService</service-type>
<service-impl>com.liferay.sample.hook.MyDLAppLocalServiceImpl</service-impl>
</service>
</hook>
I find all this stuff very confusing. I don't know what to do to which class and where. I see a lot of tutorials about modifying the User's classes, but not much about this and what posts I do find, they only give a tiny snippet of code. I have no idea where that snippet came from (which file and where in that file). I'm trying to figure out all this java and liferay stuff. I've been to the liferay training classes and I'm working through the books, along with Liferay In Action. I just don't see a very clear explanation from start to finish of how to do something like this can anyone please help me?
Thanks in advance
Before:
String defaultEntryColumns = "name,size";
After:
String defaultEntryColumns = "name,size,myNewColumn";
Then I found where you add a condition for it in view_entries.jsp, but when I output fileEntryTypeId in this if statement, I keep getting a "-1"
if (columnName.equals("myNewColumn")) {
//Logic code here
}
Also in view_entries.jsp I see the following code which gets the fileEntryTypeId, which is one of the keys I need to tap into getting the metadata since the DLFileEntry doesn't have a property for this, but I'm not sure how to tap into this to get what I need and post in in the view/gridview:
List results = null;
//List metaDataresults = null;
int total = 0;
if (fileEntryTypeId >= 0) {
Indexer indexer = IndexerRegistryUtil.getIndexer(DLFileEntryConstants.getClassName());
if (fileEntryTypeId > 0) {
DLFileEntryType dlFileEntryType = DLFileEntryTypeLocalServiceUtil.getFileEntryType(fileEntryTypeId);
dlFileEntryTypeName = dlFileEntryType.getName();
}
Also, in edit_file_entry, I see the following code which looks like it pertains, but I don't understand how to use it (starting at line 334):
<%
if (fileEntryTypeId > 0) {
try {
List<DDMStructure> ddmStructures = dlFileEntryType.getDDMStructures();
for (DDMStructure ddmStructure : ddmStructures) {
Fields fields = null;
try {
DLFileEntryMetadata fileEntryMetadata = DLFileEntryMetadataLocalServiceUtil.getFileEntryMetadata(ddmStructure.getStructureId(), fileVersionId);
fields = StorageEngineUtil.getFields(fileEntryMetadata.getDDMStorageId());
}
catch (Exception e) {
}
%>
<%= DDMXSDUtil.getHTML(pageContext, ddmStructure.getXsd(), fields, String.valueOf(ddmStructure.getPrimaryKey()), locale) %>
I also see that the table "DDMContent" gets populated with two rows when you add a document that has metadata fields. One row is for the automatically extracted data, and the other has the custom data from my custom metadata set.
I am trying to implement the following class solutions:
public class MyDLAppLocalService implements DLAppLocalService {}
and
public class MyDLFileEntryMetadataLocalService implements
DLFileEntryMetadataLocalService {}
and
public class MyDLAppLocalServiceImpl extends DLAppLocalServiceWrapper {
public MyDLAppLocalServiceImpl(DLAppLocalService dlAppLocalService) {
super(dlAppLocalService);
// TODO Auto-generated constructor stub
}
}
and
public MyDLAppLocalServiceWrapper(FileEntry fileEntry){
super((DLAppService) fileEntry);
}
}
Here is my liferay-hook.xml:
<?xml version="1.0"?>
<!DOCTYPE hook PUBLIC "-//Liferay//DTD Hook 6.1.0//EN" "http://www.liferay.com/dtd/liferay-hook_6_1_0.dtd">
<hook>
<custom-jsp-dir>/META-INF/custom_jsps</custom-jsp-dir>
<service>
<service-type>com.liferay.portlet.documentlibrary.service.DLAppLocalService</service-type>
<service-impl>com.liferay.sample.hook.MyDLAppLocalServiceImpl</service-impl>
</service>
</hook>
I find all this stuff very confusing. I don't know what to do to which class and where. I see a lot of tutorials about modifying the User's classes, but not much about this and what posts I do find, they only give a tiny snippet of code. I have no idea where that snippet came from (which file and where in that file). I'm trying to figure out all this java and liferay stuff. I've been to the liferay training classes and I'm working through the books, along with Liferay In Action. I just don't see a very clear explanation from start to finish of how to do something like this can anyone please help me?
Thanks in advance
