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mdl_course_transactions
MIGRATECore learning content / activity / progress / assessment · 11 columnsProposed target
Transform into target course, module, attempt, grade, completion, credential and content models
Migration rule
Preserve history and relationships; retain original IDs in legacy_id fields
Verification required
Plugin behavior, attempt state, grading rules, file references and completion logic require application-level verification
Tracking
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| Column | Type | Null | Default | Target mapping | Risk |
|---|---|---|---|---|---|
| id | bigint | Not null | Preserve as legacy source ID; generate target PK unless target accepts stable legacy key. | High: verify semantics/relationship/security | |
| txnid | varchar(255) | Not null | '' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| userid | bigint | Not null | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security | |
| productid | bigint | Not null | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security | |
| batchid | bigint | Not null | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security | |
| quantity | bigint | Not null | '1' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| amount | decimal(10,2) | Not null | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference | |
| status | varchar(50) | Not null | 'pending' | Map through explicit enum/boolean translation; retain source value and test edge cases. | High: verify semantics/relationship/security |
| paymentstatus | varchar(50) | Nullable | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference | |
| timecreated | bigint | Not null | Convert Unix epoch to UTC timestamp; verify 0/null sentinel and date semantics. | Schema-only inference | |
| timemodified | bigint | Nullable | Convert Unix epoch to UTC timestamp; verify 0/null sentinel and date semantics. | Schema-only inference |