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4920229a3b* start moving some database stuff around * continue moving db stuff around * more fiddling * more updates * and some more * and yet more * i broke SOMETHING but what, it's a mystery * tidy up * vendor ttlcache * use ttlcache * fix up some tests * rename some stuff * little reminder * some more updates
87 lines
4.2 KiB
Go
87 lines
4.2 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package db
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import "context"
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// Basic wraps basic database functionality.
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type Basic interface {
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// CreateTable creates a table for the given interface.
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// For implementations that don't use tables, this can just return nil.
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CreateTable(i interface{}) Error
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// DropTable drops the table for the given interface.
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// For implementations that don't use tables, this can just return nil.
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DropTable(i interface{}) Error
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// RegisterTable registers a table for use in many2many relations.
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// For implementations that don't use tables, or many2many relations, this can just return nil.
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RegisterTable(i interface{}) Error
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// Stop should stop and close the database connection cleanly, returning an error if this is not possible.
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// If the database implementation doesn't need to be stopped, this can just return nil.
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Stop(ctx context.Context) Error
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// IsHealthy should return nil if the database connection is healthy, or an error if not.
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IsHealthy(ctx context.Context) Error
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// GetByID gets one entry by its id. In a database like postgres, this might be the 'id' field of the entry,
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// for other implementations (for example, in-memory) it might just be the key of a map.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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// In case of no entries, a 'no entries' error will be returned
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GetByID(id string, i interface{}) Error
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// GetWhere gets one entry where key = value. This is similar to GetByID but allows the caller to specify the
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// name of the key to select from.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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// In case of no entries, a 'no entries' error will be returned
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GetWhere(where []Where, i interface{}) Error
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// GetAll will try to get all entries of type i.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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// In case of no entries, a 'no entries' error will be returned
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GetAll(i interface{}) Error
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// Put simply stores i. It is up to the implementation to figure out how to store it, and using what key.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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Put(i interface{}) Error
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// Upsert stores or updates i based on the given conflict column, as in https://www.postgresqltutorial.com/postgresql-upsert/
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// It is up to the implementation to figure out how to store it, and using what key.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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Upsert(i interface{}, conflictColumn string) Error
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// UpdateByID updates i with id id.
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// The given interface i will be set to the result of the query, whatever it is. Use a pointer or a slice.
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UpdateByID(id string, i interface{}) Error
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// UpdateOneByID updates interface i with database the given database id. It will update one field of key key and value value.
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UpdateOneByID(id string, key string, value interface{}, i interface{}) Error
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// UpdateWhere updates column key of interface i with the given value, where the given parameters apply.
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UpdateWhere(where []Where, key string, value interface{}, i interface{}) Error
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// DeleteByID removes i with id id.
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// If i didn't exist anyway, then no error should be returned.
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DeleteByID(id string, i interface{}) Error
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// DeleteWhere deletes i where key = value
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// If i didn't exist anyway, then no error should be returned.
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DeleteWhere(where []Where, i interface{}) Error
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}
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