Import Data Into Content Type Along With File Uploads Drupal 8

Nodes, content types and fields

• Almost nodes
• Working with content types and fields (Drupal 7 and later)
• Create a custom content type
• Add a field to a content type
• Rearrange the order of fields
• Specify how fields are displayed
• Import and Export of content-types, fields, panel or views-structure

Working with content types and fields (Drupal 7 and later)

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Final updated on

26 May 2017

In Drupal, aContent Type consists of the following primary elements:

• Content typebase configuration
• Content blazonfields

Base of operations configuration:

The base of operations configuration of a content type defines the default behavior and properties of the content type. Examples include whether or not a newly created item of content has the status ofpublishedby default; or whether or non a newly created item of content is associated with one or more menus.

Moreover, the base configuration of a content type may besides permit other additional custom settings provided by add together-on modules.

Fields:

Content Types let the cosmos of a set of fields that are associated together in some meaningful way.

Content Types are the building blocks for structured authoring in Drupal. Content types oftentimes work in conjunction with Views, which is one way you lot can serve upwards content to your end users; you lot can control the content types that announced and the order in which they appear. Developers tin also customize the authoring experience in the same manner.

One way to think of content types is to visualize the contacts on your mobile phone. If yous were to indistinguishable this on a Drupal site you would create a Content Type. You would name your new Content Type (e.g. Contacts), define the data that y'all wanted to shop almost each contact (called Fields in Drupal), and then add those Fields (e.g. First name, last name, and mobile phone number, etc.) to that Content Type. You would then use this "Contacts" Content Blazon to enter the information for each of the contacts you lot had in your contacts list. You would utilize a View (as described above) to display your Contacts in a list similar to that which yous come across on your mobile phone.

Field terminology:

• Field. A category of data that tin can be added to an element, for case, Championship, Body, Comment body, Tags, Image.
• Field type. The information blazon of a field, for example, text, integer, image.
• Field case. A field added to an chemical element.

"Element" above is not Drupal terminology but is used here for convenience. In Drupal terminology, this is either an entity type (such every bit a node or taxonomy term) or a packet (such as an article or folio).

The illustration of the Field UI below shows the field instances of the content blazon, Basic page. There are instances of the fields Title and Body.

An chemical element (i.eastward., an entity type or package) tin have only one case of each field. Yet, a field can accept a setting chosen "Number of values," which determines how many times a field can appear in an element. For case, if an instance of the field Paradigm is added to the content type Bones folio with "Number of values" set to 1, three, or unlimited, so a page is immune to have, respectively, but one, or up to three, or an unlimited number of images on it.

The primary (but not all) information about fields and field instances is stored in, respectively, the database tables "field_config" and "field_config_instance". The field blazon of a field is stored in the column "type" of the table "field_config". (Alert: Don't modify the structure or content of those tables (or any Drupal database tables) unless you know what y'all're doing. The data in those tables are continued to other information elsewhere, so changes need to be handled past the software.)

The Field UI

The Field UI module provides an administrative user interface (UI) for attaching and managing fields. Fields tin can be defined at the content-type level for content items and comments, at the vocabulary level for taxonomy terms, and at the site level for user accounts. Other modules may as well enable fields to be defined for their information. Field types (text, paradigm, number, etc.) are defined by modules, and nerveless and managed by the Field module.

The Field UI is a grade used for managing fields. Information technology comes upwardly when y'all click on theManage Fields tab of an editing grade, for example, when editing a content type (such as Basic page) (/admin/structure/types/manage/folio) or a taxonomy term (such as Tags) (/admin/construction/taxonomy/tags/edit). It tin as well be brought up by clicking on "manage fields" in the list of content types (/admin/construction/types).

The following image shows the Field UI every bit it appears for managing the fields of the content type Bones page:

Managing fields with the Field UI

The Field UI has two parts:

• A listing of field instances of the element existence edited (e.thou. Basic page or Tags). In the in a higher place prototype, the field instances are Title and Body.
• A pair of subforms for calculation new field instances. These subforms are:
  • Add new field. This is used to both create a new field and to add an instance of that field to the chemical element being edited.
  • Add existing field. This is used to add together an case of a field that already exists.

To add images or tags to a page, you lot apply "Add existing field" because when Drupal is first installed, information technology predefines the fields Epitome and Tags.

Uses

Planning fields

In that location are several decisions yous will need to brand before defining a field for content, comments, etc.:

• What the field will be called
  A field has a label (the name displayed in the user interface) and a machine name (the name used internally). The label can exist changed after you create the field if needed, but the machine name cannot be inverse after y'all accept created the field.
• What type of information the field volition store
  Each field can store one blazon of data (text, number, file, etc.). When you define a field, you choose a particular field type, which corresponds to the type of data you want to store. The field blazoncannotbe inverse subsequently you have created the field.
• How the data will be entered and displayed
  Each field blazon has one or more than bachelor "widgets" associated with information technology; each widget provides a mechanism for data input when you are editing (text box, select list, checkboxes, file upload, etc.). Each field type likewise has one or more display options, which determine how the field is displayed to site visitors. The widget and brandish options can be changed after you have created the field.
• How many values the field volition store?
  You can store one value, a specific maximum number of values, or an unlimited number of values in each field. For instance, an employee identification number field might store a single number, whereas a telephone number field might shop multiple phone numbers. This setting can exist changed after you have created the field, just if you reduce the maximum number of values after inputting/entering data, you lot may lose data.

Reusing fields

Once y'all accept defined a field, yous can reuse it. For example: if you define a custom image field for i content type, and you need to have an epitome field with the same parameters on another content type, you lot can add the same field to the second content type, in the Add together existing field area of the user interface. You could also add this field to a taxonomy vocabulary, comments, user accounts, etc.

Some settings of a reused field are unique to each utilise of the field; others are shared beyond all places you use the field. For example, the label of a text field is unique to each use, while the setting for the number of values is shared.

There are two main reasons for reusing fields. Get-go, reusing fields can save yous fourth dimension over defining new fields. Second, reusing fields likewise allow you lot to display, filter, grouping, and sort content together by field across content types. For example, the contributed Views module allows you to create lists and tables of content. And then if you use the same field on multiple content types, you can create a View containing all of those content types together displaying that field, sorted by that field, and/or filtered by that field.

At that place is one chief reason to not reuse a field: dissimilar permissions. For example, you may demand unlike user roles to have dissimilar levels of admission to a field, depending on the content type to which it has been added. This can exist difficult if yous reuse a field.

• Fields on content items
  Fields on content items are defined at the content-type level, on the Manage fields tab of the content type edit page (which you tin can reach from the Content types page). When you ascertain a field for a content type, each content item of that blazon will have that field added to information technology. Some fields, such as the Title and Body, are provided for yous when you create a content blazon or are provided on content types created by your installation profile.
• Fields on taxonomy terms
  Fields on taxonomy terms are defined at the taxonomy vocabulary level, on the Manage fields tab of the vocabulary edit page (which you tin can reach from the Taxonomy folio). When you define a field for a vocabulary, each term in that vocabulary will take that field added to it. For example, you could ascertain an image field for a vocabulary to store an icon with each term.
• Fields on user accounts
  Fields on user accounts are divers on a site-broad footing on the Manage fields tab of the Account settings folio. When you ascertain a field for user accounts, each user account volition have that field added to it. For example, you lot could add together a long text field to allow users to include a biography.
• Fields on comments
  Fields on comments are defined at the content-blazon level, on the Comment fields tab of the content type edit folio (which you can reach from the Content types page). When you add a field for comments, each comment on a content item of that type will accept that field added to it. For example, you could add a website field to the comments on forum posts, to allow forum commenters to add a link to their website.

Remove field

If you need to remove a field completely i would delete it from all existing content types where information technology exists. The Field UI can tell y'all what content types a field is beingness used on before yous endeavour and delete the field.

However, some modules create fields automatically and must be uninstalled to have their fields removed. Afterward you lot disable the module, y'all'll have to go to the uninstall tab to complete the uninstall process.

The fields yous want to delete should be deleted when cron runs, however, some people have reported that multiple cron runs are needed for the field to fully deleted depending on how much information or how many fields are beingness deleted at one time. Run cron several times, if your field isn't deleted right away.

A better fashion to do this is run these two functions:

          field_delete_field($field_name); field_purge_batch(); // note: only run this if you need the field deleted immediately!! otherwise it volition just exist deleted the next time the cron runs                  

If y'all manually delete fields from the database, many things can get incorrect. For example, hook_field_delete will non exist called and one of your modules might fail and crash the site. For this reason, it is all-time to just use the Field UI for deleting fields if y'all aren't comfortable with the code or with SQL/databases.

Versions

The Content Construction Kit (CCK) in Drupal half dozen and lower

Field UI module is the core version of the Drupal 6 CCK module.

Technical details

Default module: Yes.
Dependencies: Field, Field SQL Storage module or custom storage module.
Related Modules: Field, Field SQL Storage, File, Image, List, Number, Node, Taxonomy, User, Text
Permissions: None.
API Documentation: Field storage API
Database tables: None.

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Source: https://www.drupal.org/docs/administering-a-drupal-site/managing-content-0/working-with-content-types-and-fields

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