95 lines
2.4 KiB
Zig
95 lines
2.4 KiB
Zig
const std = @import("std");
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const sqlite = @import("sqlite");
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const Db = @import("Db.zig");
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const Item = @import("Item.zig");
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const Tag = @import("Tag.zig");
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const json = @import("json.zig");
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pub fn process(jobj: *json.Obj, db: *sqlite.Db) !void {
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var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
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defer arena.deinit();
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const allocator = arena.allocator();
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var jret = json.Obj.newObject();
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defer jret.deinit();
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// Test the action to carry and pass the object
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if (jobj.objectGet("add") catch null) |*jaction| {
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var ret = try add(jaction, db, allocator);
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jret.objectAdd("added", &ret);
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}
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if (jobj.objectGet("query") catch null) |*jaction| {
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var ret = try query(jaction, db, allocator);
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jret.objectAdd("queried", &ret);
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}
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std.debug.print("{s}", .{ jret.toString() });
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}
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pub fn add(jobj: *json.Obj, db: *sqlite.Db, allocator: std.mem.Allocator) !json.Obj {
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// TODO: Maybe return error when no items in the array?
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// Freed by the caller
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var jret = json.Obj.newArray();
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var iter = jobj.arrayGetIterator();
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while(iter.next()) |*jtags| {
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var item = Item {
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.id = null,
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.tags = try Item.tagsFromJson(jtags, allocator),
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};
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item.deinit();
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// Insert new items into the DB
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try item.persist(db);
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// Add item to new json array (Makes a deep copy, freed with jret.deinit())
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jret.arrayAdd(&item.toJson());
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}
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return jret;
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}
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pub fn query(jobj: *json.Obj, db: *sqlite.Db, allocator: std.mem.Allocator) !json.Obj {
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_ = db;
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var jret = json.Obj.newArray();
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const query_string = jobj.getString();
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var keywords = std.ArrayList([]const u8).init(allocator);
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var sql = std.ArrayList(u8).init(allocator);
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try sql.appendSlice("SELECT * FROM item_tag WHERE");
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var iter = std.mem.split(u8, query_string, " ");
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var i: usize = 0;
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while(iter.next()) |tag| {
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defer i += 1;
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try keywords.append(tag);
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// Just put AND between keywords
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if (i > 0) {
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try sql.appendSlice(" AND");
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}
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// Exclude tags that start with !
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try sql.appendSlice(" tag ");
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if (tag[0] == '-') {
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try sql.append('!');
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}
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try sql.appendSlice("= ?");
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}
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std.debug.print("{s}\n", .{sql.items});
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//var stmt = try db.prepareDynamic();
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//defer stmt.deinit();
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//
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return jret;
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}
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