Data layer restructuring (#997)

* Move query builders to sqlite package
* Add transaction system
* Wrap model resolvers in transaction
* Add error return value for StringSliceToIntSlice
* Update/refactor mutation resolvers
* Convert query builders
* Remove unused join types
* Add stash id unit tests
* Use WAL journal mode

pkg/sqlite/scraped_item.go

@@ -0,0 +1,90 @@
+package sqlite
+
+import (
+	"database/sql"
+
+	"github.com/stashapp/stash/pkg/models"
+)
+
+const scrapedItemTable = "scraped_items"
+
+type scrapedItemQueryBuilder struct {
+	repository
+}
+
+func NewScrapedItemReaderWriter(tx dbi) *scrapedItemQueryBuilder {
+	return &scrapedItemQueryBuilder{
+		repository{
+			tx:        tx,
+			tableName: scrapedItemTable,
+			idColumn:  idColumn,
+		},
+	}
+}
+
+func (qb *scrapedItemQueryBuilder) Create(newObject models.ScrapedItem) (*models.ScrapedItem, error) {
+	var ret models.ScrapedItem
+	if err := qb.insertObject(newObject, &ret); err != nil {
+		return nil, err
+	}
+
+	return &ret, nil
+}
+
+func (qb *scrapedItemQueryBuilder) Update(updatedObject models.ScrapedItem) (*models.ScrapedItem, error) {
+	const partial = false
+	if err := qb.update(updatedObject.ID, updatedObject, partial); err != nil {
+		return nil, err
+	}
+
+	return qb.find(updatedObject.ID)
+}
+
+func (qb *scrapedItemQueryBuilder) Find(id int) (*models.ScrapedItem, error) {
+	return qb.find(id)
+}
+
+func (qb *scrapedItemQueryBuilder) find(id int) (*models.ScrapedItem, error) {
+	var ret models.ScrapedItem
+	if err := qb.get(id, &ret); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &ret, nil
+}
+
+func (qb *scrapedItemQueryBuilder) All() ([]*models.ScrapedItem, error) {
+	return qb.queryScrapedItems(selectAll("scraped_items")+qb.getScrapedItemsSort(nil), nil)
+}
+
+func (qb *scrapedItemQueryBuilder) getScrapedItemsSort(findFilter *models.FindFilterType) string {
+	var sort string
+	var direction string
+	if findFilter == nil {
+		sort = "id" // TODO studio_id and title
+		direction = "ASC"
+	} else {
+		sort = findFilter.GetSort("id")
+		direction = findFilter.GetDirection()
+	}
+	return getSort(sort, direction, "scraped_items")
+}
+
+func (qb *scrapedItemQueryBuilder) queryScrapedItem(query string, args []interface{}) (*models.ScrapedItem, error) {
+	results, err := qb.queryScrapedItems(query, args)
+	if err != nil || len(results) < 1 {
+		return nil, err
+	}
+	return results[0], nil
+}
+
+func (qb *scrapedItemQueryBuilder) queryScrapedItems(query string, args []interface{}) ([]*models.ScrapedItem, error) {
+	var ret models.ScrapedItems
+	if err := qb.query(query, args, &ret); err != nil {
+		return nil, err
+	}
+
+	return []*models.ScrapedItem(ret), nil
+}