Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| id | BIGINT | 19 | √ | null |
|
|
||||||||
| contenthash | VARCHAR | 40 |
|
|
sha1 hash of file content |
|||||||||
| pathnamehash | VARCHAR | 40 |
|
|
complete file path sha1 hash - unique for each file |
|||||||||
| contextid | BIGINT | 19 | null |
|
|
The context id defined in context table - identifies the instance of plugin owning the file |
||||||||
| component | VARCHAR | 100 |
|
|
Full name of the component owning the area |
|||||||||
| filearea | VARCHAR | 50 |
|
|
Like "coursefiles". "submission", "intro" and "content" (images and swf linked from summaries), etc. |
|||||||||
| itemid | BIGINT | 19 | null |
|
|
Optional - some plugin specific item id (eg. forum post, blog entry or assignment submission, user id for user files) |
||||||||
| filepath | VARCHAR | 255 |
|
|
Optional - relative path to file from module content root, useful in Scorm and Resource mod - most of the mods do not need this |
|||||||||
| filename | VARCHAR | 255 |
|
|
The full Unicode name of this file (case sensitive) - some chars are not allowed though |
|||||||||
| userid | BIGINT | 19 | √ | null |
|
|
Optional - general userid field - meaning depending on plugin |
|||||||
| filesize | BIGINT | 19 | null |
|
|
|||||||||
| mimetype | VARCHAR | 100 | √ | null |
|
|
type of file - jpeg image, open document spreadsheet |
|||||||
| status | BIGINT | 19 | 0 |
|
|
number greater than 0 means something is wrong with this file (virus, missing, etc.) |
||||||||
| source | LONGTEXT | 2147483647 | √ | null |
|
|
contains the reference if the file is imported from external sites |
|||||||
| VARCHAR | 255 | √ | null |
|
|
The original author of the file |
||||||||
| license | VARCHAR | 255 | √ | null |
|
|
license of the file to guide reuse |
|||||||
| timecreated | BIGINT | 19 | null |
|
|
|||||||||
| timemodified | BIGINT | 19 | null |
|
|
|||||||||
| sortorder | BIGINT | 19 | 0 |
|
|
order of files |
||||||||
| referencefileid | BIGINT | 19 | √ | null |
|
|
Use to indicate file is a proxy for repository file |
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | id |
| file_comfilconite2_ix | Performance | Asc/Asc/Asc/Asc | component + filearea + contextid + itemid |
| file_con3_ix | Performance | Asc | contenthash |
| file_con5_ix | Performance | Asc | contextid |
| file_lic2_ix | Performance | Asc | license |
| file_pat2_uix | Must be unique | Asc | pathnamehash |
| file_ref4_ix | Performance | Asc | referencefileid |
| file_use4_ix | Performance | Asc | userid |
Relationships
Close relationships within degrees of separation
