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| − | {{note|Scout Tutorial|This page belongs to the {{ScoutLink|Tutorial|Minicrm Step-by-Step|Minicrm Step-by-Step Tutorial}}. It explains how reorganize the little application consisting of two pages such that you can add a webservice. You need that little {{ScoutLink|Tutorial|Write The Second Page|two page application}} in order to continue.}}
| + | The Scout documentation has been moved to https://eclipsescout.github.io/. |
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| − | We started out with an application having two table pages. Notice how the list of persons comes just beneath the list of companies. If we want to show different named folders such as "persons" and "search resuilts" for a company, we need to add a '''page with nodes'''.
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| − | {|
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| − | Standard Outline
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| − | ├─Company Table Page
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| − | │ └─Person Table Page
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| − | └─Person Table Page
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| − | |⇒
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| − | Standard Outline
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| − | ├─Company Table Page
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| − | │ └─Company Details Node Page ← new
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| − | │ ├─Person Table Page
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| − | │ │
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| − | │ └─Bing Table Page ← new
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| − | │
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| − | └─Person Table Page
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| − | |}
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| − | == Add a node page ==
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| − | In a first step, we're going to aim for the following intermediary structure:
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| − | Standard Outline
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| − | ├─Company Table Page
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| − | │ │
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| − | │ └─Company Details Node Page ← new
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| − | │ │
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| − | │ └─Person Table Page
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| − | │
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| − | └─Person Table Page
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| − | Return to the '''CompanyTablePage''' and click on the red cross (<span style="color:red">✖</span>) next to '''Exec Create Child Page''' in order to delete it.
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| − | [[Image:Delete Create Child Page Method in Scout Minicrm.png]]
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| − | Once you have deleted the method, you can right-click on the '''Child Page''' folder and pick '''New Page...'''
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| − | Use '''AbstractTableWithNodes''' as your template. There's ''no need to give it a name''. Use '''CompanyDetailsNodePage''' as the ''type name''.
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| − | {{note|No name?|Indeed, this particular ''node page'' does not need a name. That's because the ''name'' of a ''page'' is only shown if its parent is an ''outline'' or a ''page with nodes''. If the parent is a ''page with table'', '''the selected row replaces the name of the child table'''.}}
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| − | Now go to the newly created '''CompanyDetailsNodePage''', click through to the '''Child Pages''' folder, right-click and pick '''Add Page...''' Pick the '''PersonTablePage''' from the list and click ''Finish''.
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| − | {{note|Child Page or Child Pages?|Note how there is ''only child page'' for a '''page with table''' where as there are ''multiple child pages'' for a ''page with nodes''.}}
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| − | If you attempt to test your application, you'll notice a problem: '''Every person is listed under every company'''!
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| − | Why is that?
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| − | We interrupted "the flow data": When the user picks a company from the ''CompanyTablePage'', the appropriate child page is created. When we created {{ScoutLink|Tutorial|Write The Second Page|our second page}}, we made sure to pass the '''value''' of the ''CompanyNrColumn'' along. The newly introduced ''CompanyDetailsNodePage'' needs to be fixed!
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| − | Return to the '''CompanyDetailsNodePage''' and click through to '''Variables'''. Pick '''Create New Property Bean...''' from the context menu, use '''companyNr''' as the ''name'' and '''Long''' as the ''bean type''.
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| − | Click on the '''Exec Create Child Pages''' link on the ''Properties'' view of the '''CompanyDetailsNodePage'''. Change the code as follows:
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| − | <source lang="java">
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| − | @Override
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| − | protected void execCreateChildPages(Collection<IPage> pageList) throws ProcessingException {
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| − | PersonTablePage personTablePage = new PersonTablePage();
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| − | personTablePage.setCompanyNr(getCompanyNr());
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| − | pageList.add(personTablePage);
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| − | }
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| − | </source>
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| − | Return to the '''CompanyTablePage''' and click on the '''Exec Create Child Page''' link on the ''Properties'' view. Change the code as follows:
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| − | <source lang="java">
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| − | @Override
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| − | protected IPage execCreateChildPage(ITableRow row) throws ProcessingException {
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| − | CompanyDetailsNodePage childPage=new CompanyDetailsNodePage();
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| − | childPage.setCompanyNr(getTable().getCompanyNrColumn().getValue(row));
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| − | return childPage;
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| − | }
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| − | </source>
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| − | We reached our goal! This is the new structure, now:
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| − | Standard Outline
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| − | │
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| − | ├─Company Table Page
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| − | │ │
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| − | │ └─Company Details Node Page
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| − | │ │
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| − | │ └─Person Table Page
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| − | │
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| − | └─Person Table Page
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| − | Let's review how the data flows back and forth:
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| − | # CompanyTablePage calls execLoadTableData
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| − | # execLoadTableData calls the getCompanyTableData method on the StandardOutlineService
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| − | # StandardOutlineService returns tabular data including the primary key for every row
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| − | # user picks a company and clicks through
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| − | # the CompanyDetailsNodePage is created by execCreateChildPage; the value of the current CompanyNrColumn is copied to the node page's companyNr variable
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| − | # the user picks Persons and clicks through
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| − | # the PersonTablePage is created by execCreateChildPages; the value of the companyNr variable is copied to the table page's companyNr variable
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| − | # PersonTablePage calls execLoadTableData
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| − | # execLoadTableData calls the getPersonTableData method on the StandardOutlineService
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| − | # StandardOutlineService determines that the companyNr is not null, runs a SELECT statement that only selects appropriate persons from the database and returns tabular data
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