Add category image add/delete with categorypic SQL layer

src/sql/category.js

@@ -16,6 +16,7 @@ SELECT
     t.sort,
     ct.name,
     ct.slug,
+    p.hash AS fullHash,
     p.thumbw AS thumbW,
     p.thumbh AS thumbH,
     p.thumbhash AS thumbHash

src/sql/categorypic.js

@@ -0,0 +1,23 @@
+export const GET_NEXT_SORT = `
+SELECT ISNULL(MAX(sort), -1) + 1 AS sort
+FROM categorypic
+WHERE category_id = @categoryId
+`;
+
+export const ADD = `
+INSERT INTO categorypic (category_id, pic_id, sort)
+VALUES (@categoryId, @picId, @sort)
+`;
+
+export const DELETE_BY_CATEGORY = `
+DELETE FROM categorypic
+WHERE category_id = @categoryId
+`;
+
+export const GET_FIRST_PIC_BY_CATEGORY = `
+SELECT TOP 1 p.id AS picId, p.thumbw AS thumbW, p.thumbh AS thumbH, p.thumbhash AS thumbHash
+FROM categorypic cp
+INNER JOIN pic p ON p.id = cp.pic_id
+WHERE cp.category_id = @categoryId
+ORDER BY cp.sort ASC, cp.id ASC
+`;