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[performance] cache more database calls, reduce required database calls overall (#3290)

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* improvements to caching for lists and relationship to accounts / follows

* fix nil panic in AddToList()

* ensure list related caches are correctly invalidated

* ensure returned ID lists are ordered correctly

* bump go-structr to v0.8.9 (returns early if zero uncached keys to be loaded)

* remove zero checks in uncached key load functions (go-structr now handles this)

* fix issues after rebase on upstream/main

* update the expected return order of CSV exports (since list entries are now down by entry creation date)

* rename some funcs, allow deleting list entries for multiple follow IDs at a time, fix up more tests

* use returning statements on delete to get cache invalidation info

* fixes to recent database delete changes

* fix broken list entries delete sql

* remove unused db function

* update remainder of delete functions to behave in similar way, some other small tweaks

* fix delete user sql, allow returning on err no entries

* uncomment + fix list database tests

* update remaining list tests

* update envparsing test

* add comments to each specific key being invalidated

* add more cache invalidation explanatory comments

* whoops; actually delete poll votes from database in the DeletePollByID() func

* remove added but-commented-out field

* improved comment regarding paging being disabled

* make cache invalidation comments match what's actually happening

* fix up delete query comments to match what is happening

* rename function to read a bit better

* don't use ErrNoEntries on delete when not needed (it's only needed for a RETURNING call)

* update function name in test

* move list exclusivity check to AFTER eligibility check. use log.Panic() instead of panic()

* use the poll_id column in poll_votes for selecting votes in poll ID

* fix function name
This commit is contained in:
kim
2024-09-16 16:46:09 +00:00
committed by GitHub
parent 0567b319c6
commit 84279f6a6a
68 changed files with 1683 additions and 2135 deletions
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138
internal/processing/list/get.go
View File

@@ -20,7 +20,6 @@ package list
import (
"context"
"errors"
"fmt"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
@@ -28,7 +27,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/superseriousbusiness/gotosocial/internal/paging"
)
// Get returns the api model of one list with the given ID.
@@ -49,16 +48,14 @@ func (p *Processor) Get(ctx context.Context, account *gtsmodel.Account, id strin
// GetAll returns multiple lists created by the given account, sorted by list ID DESC (newest first).
func (p *Processor) GetAll(ctx context.Context, account *gtsmodel.Account) ([]*apimodel.List, gtserror.WithCode) {
lists, err := p.state.DB.GetListsForAccountID(
lists, err := p.state.DB.GetListsByAccountID(
// Use barebones ctx; no embedded
// structs necessary for simple GET.
gtscontext.SetBarebones(ctx),
account.ID,
)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
return nil, nil
}
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return nil, gtserror.NewErrorInternalError(err)
}
@@ -68,66 +65,23 @@ func (p *Processor) GetAll(ctx context.Context, account *gtsmodel.Account) ([]*a
if errWithCode != nil {
return nil, errWithCode
}
apiLists = append(apiLists, apiList)
}
return apiLists, nil
}
// GetAllListAccounts returns all accounts that are in the given list,
// owned by the given account. There's no pagination for this endpoint.
//
// See https://docs.joinmastodon.org/methods/lists/#query-parameters:
//
// Limit: Integer. Maximum number of results. Defaults to 40 accounts.
// Max 80 accounts. Set to 0 in order to get all accounts without pagination.
func (p *Processor) GetAllListAccounts(
ctx context.Context,
account *gtsmodel.Account,
listID string,
) ([]*apimodel.Account, gtserror.WithCode) {
// Ensure list exists + is owned by requesting account.
_, errWithCode := p.getList(
// Use barebones ctx; no embedded
// structs necessary for this call.
gtscontext.SetBarebones(ctx),
account.ID,
listID,
)
if errWithCode != nil {
return nil, errWithCode
}
// Get all entries for this list.
listEntries, err := p.state.DB.GetListEntries(ctx, listID, "", "", "", 0)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error getting list entries: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Extract accounts from list entries + add them to response.
accounts := make([]*apimodel.Account, 0, len(listEntries))
p.accountsFromListEntries(ctx, listEntries, func(acc *apimodel.Account) {
accounts = append(accounts, acc)
})
return accounts, nil
}
// GetListAccounts returns accounts that are in the given list, owned by the given account.
// The additional parameters can be used for paging.
// The additional parameters can be used for paging. Nil page param returns all accounts.
func (p *Processor) GetListAccounts(
ctx context.Context,
account *gtsmodel.Account,
listID string,
maxID string,
sinceID string,
minID string,
limit int,
page *paging.Page,
) (*apimodel.PageableResponse, gtserror.WithCode) {
// Ensure list exists + is owned by requesting account.
_, errWithCode := p.getList(
// Use barebones ctx; no embedded
// structs necessary for this call.
gtscontext.SetBarebones(ctx),
@@ -138,71 +92,45 @@ func (p *Processor) GetListAccounts(
return nil, errWithCode
}
// To know which accounts are in the list,
// we need to first get requested list entries.
listEntries, err := p.state.DB.GetListEntries(ctx, listID, maxID, sinceID, minID, limit)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err = fmt.Errorf("GetListAccounts: error getting list entries: %w", err)
// Get all accounts contained within list.
accounts, err := p.state.DB.GetAccountsInList(ctx,
listID,
page,
)
if err != nil {
err := gtserror.Newf("db error getting accounts in list: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
count := len(listEntries)
// Check for any accounts.
count := len(accounts)
if count == 0 {
// No list entries means no accounts.
return util.EmptyPageableResponse(), nil
return paging.EmptyResponse(), nil
}
var (
// Preallocate expected frontend items.
items = make([]interface{}, 0, count)
// Set next + prev values before filtering and API
// converting, so caller can still page properly.
nextMaxIDValue = listEntries[count-1].ID
prevMinIDValue = listEntries[0].ID
// Set paging low / high IDs.
lo = accounts[count-1].ID
hi = accounts[0].ID
)
// Extract accounts from list entries + add them to response.
p.accountsFromListEntries(ctx, listEntries, func(acc *apimodel.Account) {
items = append(items, acc)
})
return util.PackagePageableResponse(util.PageableResponseParams{
Items: items,
Path: "/api/v1/lists/" + listID + "/accounts",
NextMaxIDValue: nextMaxIDValue,
PrevMinIDValue: prevMinIDValue,
Limit: limit,
})
}
func (p *Processor) accountsFromListEntries(
ctx context.Context,
listEntries []*gtsmodel.ListEntry,
appendAcc func(*apimodel.Account),
) {
// For each list entry, we want the account it points to.
// To get this, we need to first get the follow that the
// list entry pertains to, then extract the target account
// from that follow.
//
// We do paging not by account ID, but by list entry ID.
for _, listEntry := range listEntries {
if err := p.state.DB.PopulateListEntry(ctx, listEntry); err != nil {
log.Errorf(ctx, "error populating list entry: %v", err)
continue
}
if err := p.state.DB.PopulateFollow(ctx, listEntry.Follow); err != nil {
log.Errorf(ctx, "error populating follow: %v", err)
continue
}
apiAccount, err := p.converter.AccountToAPIAccountPublic(ctx, listEntry.Follow.TargetAccount)
// Convert accounts to frontend.
for _, account := range accounts {
apiAccount, err := p.converter.AccountToAPIAccountPublic(ctx, account)
if err != nil {
log.Errorf(ctx, "error converting to public api account: %v", err)
log.Errorf(ctx, "error converting to api account: %v", err)
continue
}
appendAcc(apiAccount)
items = append(items, apiAccount)
}
return paging.PackageResponse(paging.ResponseParams{
Items: items,
Path: "/api/v1/lists/" + listID + "/accounts",
Next: page.Next(lo, hi),
Prev: page.Prev(lo, hi),
}), nil
}