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/api/gallery/list support filter with upload and tag

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lifegpc
2023-09-15 14:29:16 +08:00
parent 55ed784f2b
commit e96b099fc2
2 changed files with 82 additions and 8 deletions
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75
db.ts
View File

@@ -256,6 +256,13 @@ const TOKEN_TABLE = `CREATE TABLE token (
secure BOOLEAN
);`;
function escape_fields(fields: string, namespace: string) {
const fs = fields.split(",");
return fs.map((f) => {
return `${namespace}.${f.trim()}`;
}).join(",");
}
export class EhDb {
db;
#flock_enabled: boolean = eval('typeof Deno.flock !== "undefined"');
@@ -914,24 +921,80 @@ export class EhDb {
limit = 20,
fields = "*",
sort_by_gid: boolean | null = null,
uploader: string | null = null,
tag: string | null,
) {
const sort_sql = sort_by_gid !== null
? ` ORDER BY gid ${sort_by_gid ? "ASC" : "DESC"}`
? ` ORDER BY gmeta.gid ${sort_by_gid ? "ASC" : "DESC"}`
: "";
"";
const join_sqls = [];
const where_sqls = [];
const args = [];
let escape = false;
if (tag) {
const tag_id = this.#tags.get(tag);
if (tag_id !== undefined) {
join_sqls.push("INNER JOIN gtag ON gmeta.gid = gtag.gid");
where_sqls.push("gtag.id = ?");
args.push(tag_id);
escape = true;
}
}
if (uploader) {
where_sqls.push("uploader = ?");
args.push(uploader);
}
const where_sql = where_sqls.length
? ` WHERE ${where_sqls.join(" AND ")}`
: "";
const join_sql = join_sqls.length ? ` ${join_sqls.join(" ")}` : "";
args.push(limit, offset);
return this.convert_gmeta(
this.db.queryEntries<GMetaRaw>(
`SELECT ${fields} FROM gmeta${sort_sql} LIMIT ? OFFSET ?;`,
[limit, offset],
`SELECT ${
escape ? escape_fields(fields, "gmeta") : fields
} FROM gmeta${join_sql}${where_sql}${sort_sql} LIMIT ? OFFSET ?;`,
args,
),
);
}
get_gmetas_all(fields = "*", sort_by_gid: boolean | null = null) {
get_gmetas_all(
fields = "*",
sort_by_gid: boolean | null = null,
uploader: string | null = null,
tag: string | null = null,
) {
const sort_sql = sort_by_gid !== null
? ` ORDER BY gid ${sort_by_gid ? "ASC" : "DESC"}`
? ` ORDER BY gmeta.gid ${sort_by_gid ? "ASC" : "DESC"}`
: "";
const join_sqls = [];
const where_sqls = [];
const args = [];
let escape = false;
if (tag) {
const tag_id = this.#tags.get(tag);
if (tag_id !== undefined) {
join_sqls.push("INNER JOIN gtag ON gmeta.gid = gtag.gid");
where_sqls.push("gtag.id = ?");
args.push(tag_id);
escape = true;
}
}
if (uploader) {
where_sqls.push("uploader = ?");
args.push(uploader);
}
const where_sql = where_sqls.length
? ` WHERE ${where_sqls.join(" AND ")}`
: "";
const join_sql = join_sqls.length ? ` ${join_sqls.join(" ")}` : "";
return this.convert_gmeta(
this.db.queryEntries<GMetaRaw>(
`SELECT ${fields} FROM gmeta${sort_sql};`,
`SELECT ${
escape ? escape_fields(fields, "gmeta") : fields
} FROM gmeta${join_sql}${where_sql}${sort_sql};`,
args,
),
);
}

15
routes/api/gallery/list.ts
View File

@@ -33,6 +33,8 @@ export const handler: Handlers = {
u.searchParams.get("sort_by_gid"),
null,
);
const uploader = u.searchParams.get("uploader");
const tag = u.searchParams.get("tag");
if (fields !== "*") {
const fs = fields.split(",");
const ok = fs.every((d) => {
@@ -42,10 +44,19 @@ export const handler: Handlers = {
if (!ok) return return_error(1, "Some fields not allowed.");
}
if (all) {
return return_data(t.db.get_gmetas_all(fields, sort_by_gid));
return return_data(
t.db.get_gmetas_all(fields, sort_by_gid, uploader, tag),
);
} else {
return return_data(
t.db.get_gmetas(offset, limit, fields, sort_by_gid),
t.db.get_gmetas(
offset,
limit,
fields,
sort_by_gid,
uploader,
tag,
),
);
}
},