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