friendica_2021-01/doc/database/db_item.md
Alexandre Alapetite d2901dcb00 Fix for MySQL 5.7+
https://github.com/friendica/friendica/issues/2786

Only tested on Ubuntu 16.10 with MySQL 5.7.17.

https://dev.mysql.com/doc/refman/8.0/en/timestamp-initialization.html

https://dev.mysql.com/doc/refman/8.0/en/sql-mode.html#sqlmode_no_zero_date
As of MySQL 5.7.4, NO_ZERO_DATE is deprecated.

Patch based on the following search & replace (and then reverting some
changes in libraries):

```sh
grep -l '= "0000-00-00"' -r . | xargs sed -i -e "s/= \"0000-00-00\"/=
'0000-00-00'/g"

grep -l "0000-00-00" -r . | xargs sed -i -e "s/0000-00-00/0001-01-01/g"

grep -l "!= '0001-01-01'" -r . | xargs sed -i -e "s/!= '0001-01-01'/>
'0001-01-01'/g"

grep -l " === '0001-01-01'" -r . | xargs sed -i -e "s/ === '0001-01-01'/
<= '0001-01-01'/g"

grep -l " == '0001-01-01'" -r . | xargs sed -i -e "s/ == '0001-01-01'/
<= '0001-01-01'/g"

grep -l "strpos(\$dob, '0000-') === 0" -r . | xargs sed -i -e
"s/strpos(\$dob, '0000-') === 0/strpos(\$dob, '0000-') === 0 ||
strpos(\$dob, '0001-') === 0/g"

grep -l 'array("", "0001-01-01")' -r . | xargs sed -i -e 's/array("",
"0001-01-01")/array("", "0000-00-00", "0001-01-01")/g'

grep -l "\$dob = '0000-'" -r . | xargs sed -i -e "s/\$dob =
'0000-'/\$dob = '0001-'/g"
```
2017-04-11 23:00:45 +02:00

73 lines
16 KiB
Markdown

Table item
==========
| Field | Description | Type | Null | Key | Default | Extra |
|---------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------|------|-----|---------------------|----------------|
| id | sequential ID | int(10) unsigned | NO | PRI | NULL | auto_increment |
| guid | A unique identifier for this item | varchar(255) | NO | MUL | | |
| uri | | varchar(255) | NO | MUL | | |
| uid | user.id which owns this copy of the item | int(10) unsigned | NO | MUL | 0 | |
| contact-id | contact.id | int(11) | NO | MUL | 0 | |
| gcontact-id | ID of the global contact | int(11) | NO | MUL | 0 | |
| type | | varchar(255) | NO | | | |
| wall | This item was posted to the wall of uid | tinyint(1) | NO | MUL | 0 | |
| gravity | | tinyint(1) | NO | | 0 | |
| parent | item.id of the parent to this item if it is a reply of some form; otherwise this must be set to the id of this item | int(10) unsigned | NO | MUL | 0 | |
| parent-uri | uri of the parent to this item | varchar(255) | NO | MUL | | |
| extid | | varchar(255 | NO | MUL | | |
| thr-parent | If the parent of this item is not the top-level item in the conversation, the uri of the immediate parent; otherwise set to parent-uri | varchar(255) | NO | | | |
| created | Creation timestamp. | datetime | NO | | 0001-01-01 00:00:00 | |
| edited | Date of last edit (default is created) | datetime | NO | | 0001-01-01 00:00:00 | |
| commented | Date of last comment/reply to this item | datetime | NO | | 0001-01-01 00:00:00 | |
| received | datetime | datetime | NO | | 0001-01-01 00:00:00 | |
| changed | Date that something in the conversation changed, indicating clients should fetch the conversation again | datetime | NO | | 0001-01-01 00:00:00 | |
| owner-name | Name of the owner of this item | varchar(255) | NO | | | |
| owner-link | Link to the profile page of the owner of this item | varchar(255) | NO | | | |
| owner-avatar | Link to the avatar picture of the owner of this item | varchar(255) | NO | | | |
| owner-id | Link to the contact table with uid=0 of the owner of this item | int(11) | NO | MUL | 0 | |
| author-name | Name of the author of this item | varchar(255) | NO | | | |
| author-link | Link to the profile page of the author of this item | varchar(255) | NO | | | |
| author-avatar | Link to the avatar picture of the author of this item | varchar(255) | NO | | | |
| author-id | Link to the contact table with uid=0 of the author of this item | int(11) | NO | MUL | 0 | |
| title | item title | varchar(255) | NO | | | |
| body | item body content | mediumtext | NO | | NULL | |
| app | application which generated this item | varchar(255) | NO | | | |
| verb | ActivityStreams verb | varchar(255) | NO | | | |
| object-type | ActivityStreams object type | varchar(255) | NO | | | |
| object | JSON encoded object structure unless it is an implied object (normal post) | text | NO | | NULL | |
| target-type | ActivityStreams target type if applicable (URI) | varchar(255) | NO | | | |
| target | JSON encoded target structure if used | text | NO | | NULL | |
| postopts | External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery | text | NO | | NULL | |
| plink | permalink or URL toa displayable copy of the message at its source | varchar(255) | NO | | | |
| resource-id | Used to link other tables to items, it identifies the linked resource (e.g. photo) and if set must also set resource_type | varchar(255) | NO | MUL | | |
| event-id | Used to link to the event.id | int(11) | NO | | 0 | |
| tag | | mediumtext | NO | | NULL | |
| attach | JSON structure representing attachments to this item | mediumtext | NO | | NULL | |
| inform | | mediumtext | NO | | NULL | |
| file | | mediumtext | NO | | NULL | |
| location | text location where this item originated | varchar(255) | NO | | | |
| coord | longitude/latitude pair representing location where this item originated | varchar(255) | NO | | | |
| allow_cid | Access Control - list of allowed contact.id '<19><78>' | mediumtext | NO | | NULL | |
| allow_gid | Access Control - list of allowed groups | mediumtext | NO | | NULL | |
| deny_cid | Access Control - list of denied contact.id | mediumtext | NO | | NULL | |
| deny_gid | Access Control - list of denied groups | mediumtext | NO | | NULL | |
| private | distribution is restricted | tinyint(1) | NO | | 0 | |
| pubmail | | tinyint(1) | NO | | 0 | |
| moderated | | tinyint(1) | NO | | 0 | |
| visible | | tinyint(1) | NO | | 0 | |
| spam | | tinyint(1) | NO | | 0 | |
| starred | item has been favourited | tinyint(1) | NO | | 0 | |
| bookmark | item has been bookmarked | tinyint(1) | NO | | 0 | |
| unseen | item has not been seen | tinyint(1) | NO | | 1 | |
| deleted | item has been deleted | tinyint(1) | NO | MUL | 0 | |
| origin | item originated at this site | tinyint(1) | NO | | 0 | |
| forum_mode | | tinyint(1) | NO | | 0 | |
| last-child | | tinyint(1) unsigned | NO | | 1 | |
| mention | The owner of this item was mentioned in it | tinyint(1) | NO | | 0 | |
| network | Network from where the item comes from | varchar(32) | NO | | | |
| rendered-hash | | varchar(32) | NO | | | |
| rendered-html | item.body converted to html | mediumtext | NO | | NULL | |
| global | | tinyint(1) | NO | | 0 | |
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