Edit view

Aim: Create a table view for the literature mining content type and add filters to search for specific data.

You need:
 * The Literature mining content type (see Add a new content type)
 * Several Literature mining nodes
 * The Views module enabled. To enable views go to  in the Admin menu, click on , enable 'Views' and save.

Time: 30 min 

Instructions
With views you can modify how lists of content are displayed on your site. The default display format for a new content type is an HTML list. You can change the format to a table, grid or for example a map to show your data in an optimal way. For the Literature mining content type a table would be best, so that is what we are going to do:
 * Click on the  tab in the Menu menu and then on the cog icon to the right of the "Literature minings" title. Click on .TableView1.jpg
 * We want to change the current page display, so we are not going to add a new display.TableViewTitle.jpg

Title

 * The system automatically added an "s" to the view title as well as the menu item. Remove the "s" from the title by clicking on the  link in the 'Title' section.
 * Delete the "s" from the title.
 * Usually, when you edit any part of the view, you can decide whether you want to edit all displays and thereby change the default, or just the current page and thereby override the default settings only for this case. In our case we want to change the title for all displays, so click on the  button.
 * If you added a new display for the view, then you usually need to take care to change the setting just for the current page. A yellow message ("All changes are stored temporarily...") appears at the top of the page to make you aware that your changes are not permanent yet.
 * Click on the  button in the upper right corner to make your changes permanent. This will automatically bring you back to the page view where you can check the changes. You will notice that the menu item in the Main menu is still with an extra "s", so we need to change this, too.
 * Go back to editing the view.

Page settings: Menu

 * In the 'Page settings' section click on the link next to "Menu".
 * Remove the "s" from the TITLE. If needed you can add a description or change the parent menu item. Apply.

Format
At the bottom of the 'Edit view' page you can now see an example of what our new view is going to look like. As you can see, only the title field is showing, so we need to add more fields. Before we do this however, save the view and edit again.
 * To change the display format, click on "HTML list" in the 'Format' section. Select "Table". Apply.
 * Next, you can edit the style options. We will come back to this later, so cancel for now.

Fields

 * A new section called 'Fields' has appeared below the 'Format' section. Click on the  link to add more fields.
 * Select "Content: Literature mining category", "Content: Page", "Content: Text", "Field: Reference" and "Field: Taxonomic name" fields. Note that below each field name is a list of the content types in which it appears, so you can find fields by searching for the literature mining content type. Apply.
 * Now you can configure the fields you selected one by one. The default is usually fine, so you don't need to change anything. However, you could for example make the column header (label) bold by clicking on , selecting 'Customize label HTML' and choosing "STRONG" from the 'Label HTML element' dropdown menu.TableView2.jpg
 * Change the field order by clicking on the arrow down icon next to the link in the 'Fields' section. Click on the link. Drag and drop the fields into a better order. Apply.
 * Save the view.

Filter criteria
Filters restrict a view to a certain set of data. Filters can be hidden or exposed. Exposed filters can be used by the users to search for certain data. Two filters are already present for this view. The "Published (Yes)" filter that ensures that only published content will be shown in this view and the "Type (= Literature mining)" filter that ensures that only literature mining content is shown. To help users in finding certain literature mining content we are now going to add a few filters that are exposed to the users.
 * Click on the link in the 'Filter criteria' section. Select the "Content: Literature mining category (field_literature_mining_category)", "Field: Taxonomic name (field_taxonomic_name)" and "Field: Reference (field_reference)" fields. Apply.
 * Next you can configure each of the fields in turn. Adapt the labels and select "Expose this filter to visitors..." for all of them. For the taxonomic name filter also select "Expose operator" and "Allow multiple selections".
 * Save the view and check out the different filters.

Header
It would be nice to add some introductory text above the table. The area above the table is called "Header" and the one below is the "Footer". So we need to add a header:
 * Edit the view again and click on for the 'Header'.
 * Select "Global: Result summary" to get a summary of the number of items on the page and select "Global: Text area" for our introductory text. Next you can configure both fields. Add some introductory field in the text area field.

Table settings
With the right settings, the table rows (items) can be sorted by clicking on the header of the respective column.
 * To make certain fields sortable click on the  link next to 'Table' in the 'Format' section.
 * Check "Sortable" for the title, reference and category fields. Apply.

Pager
The default for tables is to use a pager that shows 10 items per page. To view more items the user has to click to the next page(s). Views using pagers are quicker to load because only the first page needs to be uploaded. However, one problem with using pagers is that the sorting only works within a page not across all items. If we want to be able sort all items, we need to disable the pager.
 * Click on the  link next to 'Use pager' in the 'Pager' section.
 * Select "Display all terms". Apply. Don't change anything in the next view and apply again.

Sort criteria
The default sort criterium is the post date of the items, which the most recent nodes at the top. You can change the sort criteria or add criteria in the 'Sort criteria' section.

Displays
In addition to changing the existing display, you can add new displays. Take care when changing the settings of your new display that you only change the current display (override) and not all displays.
 * Click on the  button in the 'Displays' section near the top of the views administration page. Select one of the display options:
 * Attachment: With this display, you can attach one display of a view to another display. This allows you to group different views together.
 * Block: Creates a block display.
 * Data export: Creates a file.
 * Feed: Creates a feed.
 * Page: Creates a page display.
 * References: Creates a references view that can be added for example as a field (e.g. node references view) to custom content types.

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