qdr.app.woo.plugins/studiou-wc-ord-print-statuses

QDR — Studiou WC Order Print Statuses

WordPress plugin that extends WooCommerce with a dedicated workflow for managing print orders sent to third-party print providers. It adds custom order statuses, tracking fields, CSV export, protocol-based CSV imports, and search/filter capabilities tailored to a print fulfillment pipeline.

• Plugin slug / text domain: studiou-wc-ord-print-statuses
• Current version: 1.4.2
• Author: Dalibor Votruba — quadarax.com
• License: GPL v2 or later

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Requirements

Component	Minimum	Tested up to
WordPress	5.8	6.9.4
WooCommerce	3.0	10.7.0
PHP	7.2	—

Compatible with WooCommerce High-Performance Order Storage (HPOS) — the plugin declares custom_order_tables compatibility and queries the HPOS wc_orders table directly.

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Installation

1. Copy the studiou-wc-ord-print-statuses folder into wp-content/plugins/.
2. Make sure WooCommerce is installed and active.
3. Activate the plugin from Plugins in the WordPress admin.

No additional setup is required — custom statuses, fields, columns, and bulk actions are registered on activation.

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Features

1. Custom order statuses

Two new statuses are inserted in the WooCommerce status pipeline, right after processing:

Slug	Label	Purpose
wc-to-print	Prepare to Printing	Order is queued and exported to the print shop.
wc-in-print	In Printing	Print shop has accepted the order.

Status transitions automatically stamp the related metadata field (to_print_date / in_print_date) with the current server time.

2. Print Information fields on the order edit page

A new Print Information panel is added to the order details screen with four editable fields:

• Prepare To Print Date (to_print_date)
• In Print Date (in_print_date)
• External Order Number (external_ref_ord_no)
• External Order Date (external_ref_ord_date) — populated by InPrint protocol imports.
• External Order Delivered (external_ref_ord_delivered)

3. Bulk actions on the Orders list

Available in the Bulk actions dropdown on WooCommerce → Orders:

• Prepare to Printing Export — runs the print-shop export SQL across the selected orders, streams the result as a CSV download, and moves every selected order to wc-to-print.
• Set Status to Prepare to Printing — moves selected orders to wc-to-print and stamps to_print_date.
• Set Status to In Printing — moves selected orders to wc-in-print and stamps in_print_date.

4. Extra columns in the Orders list

Three columns are appended after Total:

• To Print Date
• In Print Date
• External Order Number

5. Search by External Order Number

The standard WooCommerce Search orders input also matches the external_ref_ord_no meta value — no separate input is required. Works under both legacy CPT storage and HPOS (woocommerce_shop_order_search_fields and woocommerce_order_table_search_query_meta_keys filters).

6. Protocol imports

A WooCommerce → Import Protocols submenu exposes two CSV upload forms:

• Import InPrint Protocol — for every row in the file, the matching order is set to wc-in-print and the external reference number / date are saved.
• Import Delivered Protocol — for every row in the file, the matching order is set to wc-completed and the delivery timestamp is recorded.

Both importers require the manage_woocommerce capability and are protected by WordPress nonces.

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CSV formats

About order_no: the order_no column written to the export and read by both imports is the WooCommerce internal order ID (wp_wc_orders.id under HPOS, wp_posts.ID under legacy CPT). It is not the user-facing order number produced by Sequential Order Numbers and similar plugins. If you install a custom-order-number plugin, the protocols still operate on the underlying order IDs — the print shop must echo back whatever value was sent in the export.

Export — Prepare to Printing

Generated file: prepare_to_printing_export.csv (UTF-8 with BOM — opens correctly in Excel on Windows).

Columns (in order):

order_no, prod_cat, prod_name, prod_var, prod_var_type, prod_img_url, qty, email

• prod_var_type is sourced from the variation's attribute_pa_format postmeta, resolved against the wp_terms table.
• prod_cat is a comma-separated list (deduplicated) when a product belongs to multiple product_cat terms — the row itself is not duplicated.
• The file is generated before any status change. If the underlying SQL returns no rows the file is not produced and statuses are still advanced (per spec), with an admin notice surfacing the situation.

Headers are normalised on read: column names are lowercased and internal whitespace is collapsed to underscore. Both the original spec casing (Order No, ExternalOrder, ExternalOrderDate) and the documented lowercase form (order_no, externalorder, externalorderdate) work. Rows are also deduplicated by order_no before processing.

Import — InPrint Protocol

Required headers (any of the accepted casings):

order_no, externalorder, externalorderdate

Effect per row: order → status wc-in-print, sets in_print_date (now), external_ref_ord_no, external_ref_ord_date (parsed from the CSV). Orders in a terminal status (completed, cancelled, refunded, failed) are skipped with a per-row error notice.

Import — Delivered Protocol

Required header:

order_no

Effect per row: order → status wc-completed, sets external_ref_ord_delivered (now).

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Architecture

The plugin follows a manager-based pattern. The main bootstrapper (studiou-wc-ord-print-statuses.php) wires up specialised classes, each owning one slice of behaviour:

Class	File	Responsibility
Order_Status_Manager	includes/class-order-status-manager.php	Register custom statuses, handle transitions.
Order_Fields_Manager	includes/class-order-fields-manager.php	Render and persist Print Information fields.
Bulk_Actions_Manager	includes/class-bulk-actions-manager.php	Register and dispatch bulk actions.
Custom_Columns_Manager	includes/class-custom-columns-manager.php	Inject extra columns into the Orders list.
Import_Manager	includes/class-import-manager.php	Admin UI + handlers for protocol CSV imports.
Order_Search_Manager	includes/class-order-search-manager.php	Extend order search to external reference no.
Studiou_DB_Manager	includes/class-db-manager.php	All SQL and protocol-processing logic.
UtilsLog	includes/utils-log.php	Lightweight logging helper (uses WP_DEBUG).

The export query in Studiou_DB_Manager::get_orders_for_printing() joins wc_orders, wc_order_product_lookup, posts (products + variations), postmeta (variation attribute + thumbnail), terms, term_taxonomy, and term_relationships to assemble the print-shop payload in a single round-trip.

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Internationalization

• Text domain: studiou-wc-ord-print-statuses
• Translation files: languages/
• Bundled locales: Czech (cs_CZ) — see docs/translations.txt for the EN→CS reference list.

Use the standard WordPress functions (__(), _e(), _x(), _n_noop()) for any new strings.

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Logging & user notices

• UtilsLog::log($message) writes to the WordPress error log when WP_DEBUG is enabled (guarded as defined('WP_DEBUG') && WP_DEBUG — works for both boolean and integer truthy values). With WP_DEBUG_LOG on, log output ends up in wp-content/debug.log.
• UtilsLog::message($message, $type) queues a dismissible WordPress admin notice (info / success / warning / error) for the current user. Notices are stored in a per-user transient (60-second TTL) so they survive the redirect that follows bulk actions and imports. Used to report success counts, skipped orders, malformed CSV rows, etc.

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Project layout

studiou-wc-ord-print-statuses/
├── studiou-wc-ord-print-statuses.php   # Plugin bootstrap (header + main class)
├── includes/
│   ├── class-db-manager.php
│   ├── class-order-status-manager.php
│   ├── class-order-fields-manager.php
│   ├── class-order-search-manager.php
│   ├── class-bulk-actions-manager.php
│   ├── class-custom-columns-manager.php
│   ├── class-import-manager.php
│   └── utils-log.php
├── languages/                          # .po / .mo translation files
├── docs/                               # Project documentation (see below)
├── README.md                           # This file
└── CLAUDE.md                           # Guidance for Claude Code sessions

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Documentation

Reference documents live under docs/:

• docs/readme.md — Previous user-facing readme (kept for history).
• docs/instructions.txt — Original feature specification used to scaffold the plugin.
• docs/translations.txt — EN → CS translation reference.
• docs/revise-1.3.2.md — Analytical review of v1.3.2 (all findings addressed in 1.4.0).
• docs/revise-1.4.0.md — Analytical review of v1.4.0 (all in-scope findings addressed in 1.4.1).
• docs/revise-1.4.1.md — Analytical review of v1.4.1 (all in-scope findings addressed in 1.4.2).

Project-internal guidance for AI-assisted development is documented in CLAUDE.md.

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Known limitations

• HPOS search filter name (woocommerce_order_table_search_query_meta_keys) has not been live-verified against WC 10.7.0. The legacy CPT filter is solid; the HPOS branch should be smoke-tested on the production site before relying on it.
• Variable products only — the export query joins variation tables and the CSV columns include prod_var / prod_var_type. Simple (non-variable) products appear in the export as of 1.4.2 (via LEFT JOIN), but their variation fields are blank.
• WC Analytics dependency — the export reads from wc_order_product_lookup, the WooCommerce Analytics lookup table. If WC Analytics is disabled or the table is missing, the export emits an admin notice and skips.
• Block-based order edit screen — the Print Information panel is wired to the classic order edit screen via woocommerce_admin_order_data_after_order_details. Behaviour on the WC 10.x block-based order edit screen has not been verified.
• Multisite — no Network: plugin header is set; activate per blog.
• No uninstall cleanup — meta keys (to_print_date, external_ref_ord_no, etc.) remain in the database after plugin removal.
• Custom order numbers — the protocols operate on WC internal order IDs (see the note above the Export section). Sequential Order Numbers / custom-order-number plugins are not integrated.
• The attribute_pa_format taxonomy is hardcoded in the export SQL. Stores using a different attribute name will get a blank prod_var_type.
• MySQL group_concat_max_len is raised to 64 KB via SET SESSION per export — connection-scoped, harmless but worth knowing if you maintain custom queries on the same connection.

Changelog

1.4.2 — 2026-05-12

Bug-fix release addressing the findings catalogued in docs/revise-1.4.1.md:

• Fixed (high): Custom_Columns_Manager date columns ("To Print Date", "In Print Date") were applying the WP timezone offset twice — strtotime() interpreted the stored value in PHP server timezone, then date_i18n() formatted in WP timezone. On UTC-server / non-UTC-WP setups (e.g. UTC server + Europe/Prague site) the displayed time drifted by 1–2 hours. Now parsed explicitly as WP-local via DateTimeImmutable(..., wp_timezone()) and formatted with wp_date().
• Fixed (high): Export SQL joined wp_terms.name against the variation's attribute_pa_format postmeta, but WC stores the slug there, not the name. The join is now terms.slug = meta_value, while MIN(terms.name) still returns the human-readable display value.
• Fixed (high): qty is now SUM(order_products.product_qty) instead of MIN(...). A single order can have multiple line items for the same (product, variation) when the customer added it twice without cart-merge; the previous query silently undercounted in that case.
• Fixed: JOIN product_variations was inner — silently excluded orders containing simple (non-variable) products. Now a LEFT JOIN; simple products are included with blank prod_var/prod_var_type.
• Fixed: prod_img_url no longer reads wp_posts.guid (which WP codex warns is not necessarily a URL). The export now selects _thumbnail_id and resolves URLs via wp_get_attachment_url() — respects offloaded-media plugins, multisite uploads paths, and wp_get_attachment_url filters.
• Fixed: Studiou_DB_Manager::normalise_csv_date() now formats with wp_date() (WP timezone) instead of date() (server timezone), matching current_time('mysql') elsewhere.
• Added: Pre-flight check for wc_order_product_lookup — if WC Analytics is disabled and the lookup table is missing, the export bails with a clear admin notice instead of failing with a cryptic SQL error.
• Changed: SET SESSION group_concat_max_len = GREATEST(@@SESSION.group_concat_max_len, 65535) — never lowers a higher session-scoped value another piece of code may rely on.
• Added: Server-side .csv extension check on protocol uploads (defense in depth on top of the existing is_uploaded_file() / $_FILES[...]['error'] checks).
• Fixed: Order_Status_Manager::add_custom_order_statuses_to_list() falls back to appending the custom statuses at the end of the dropdown if wc-processing was removed by another plugin.
• Changed: parse_csv() drops error-suppression @fopen — failures are logged explicitly.
• Doc: README gains a "Known limitations" section and clarifies what order_no means in CSVs. CLAUDE.md corrected (the attribute_pa_format join uses slug, not name).
• Doc: docs/revise-1.4.1.md updated with per-item status annotations.

Deferred (carried over): live HPOS search-filter verification, Network: plugin header, uninstall.php, block-based order edit screen, custom-order-number plugin integration.

1.4.1 — 2026-05-12

Bug-fix release addressing the findings catalogued in docs/revise-1.4.0.md:

• Fixed (critical): Export SQL is now compatible with MySQL's ONLY_FULL_GROUP_BY mode (default in MySQL 5.7+ / MariaDB 10.3+). Non-aggregated columns (prod_name, prod_var, prod_var_type, prod_img_url, qty, email) are wrapped in MIN(); each (product_id, variation_id) group has exactly one value per column so MIN() is value-preserving.
• Fixed (critical): parse_csv() now strips a leading UTF-8 BOM. Re-importing a previously exported CSV (which ships with a BOM for Excel-on-Windows compatibility) no longer breaks header parsing.
• Fixed (high): Datetime fields in the Print Information panel now reformat values as pure strings (YYYY-MM-DD HH:MM:SS ↔ YYYY-MM-DDTHH:MM) instead of running them through strtotime()/date(). The previous timezone-shift bug (off by 1–2 hours on UTC servers with non-UTC WP timezones) is gone.
• Fixed: set_order_processing_status() now records a single order note via update_status() instead of also calling add_order_note(). The order activity feed no longer duplicates the "payment received" line.
• Fixed: Bulk-action notices are suppressed when zero orders were actually moved — the more informative "skipped because terminal status" warning from the DB manager stands alone.
• Fixed: output_csv() now aborts with wp_die() (and logs the offender) when headers_sent() is true, instead of streaming raw CSV bytes into a half-rendered HTML page.
• Fixed: fputcsv/fgetcsv now pass an explicit empty-string escape character — no more PHP 8.4 deprecation warnings.
• Fixed: Order_Fields_Manager::save_custom_order_fields() now checks current_user_can('edit_shop_order' / 'edit_shop_orders') before writing. Defense-in-depth on top of WC's own validation.
• Fixed: Studiou_DB_Manager::get_orders_for_printing() raises group_concat_max_len to 64 KB before the export query, preventing silent prod_cat truncation for products in many categories.
• Fixed: dedupe_by_order_no() is now case-insensitive — ord-12345 and ORD-12345 collapse to a single row.
• Fixed: normalise_csv_date() returns an empty string (and logs) on parse failure instead of persisting the unparseable raw value.
• Changed: Import_Manager::run_import() is driven by a single protocol_dispatch() map (file field, nonce, DB handler per protocol). Every non-happy-path branch returns explicitly via redirect_back() for static-analysis friendliness.
• Changed: Order_Fields_Manager rendering and saving are driven from the datetime_fields() / text_fields() maps. Adding a new field is a single-map-entry change.
• Changed: Notice transient TTL raised from 60 s to 300 s so admin notices survive slow redirects (proxies, HTTPS handshake latency).
• Doc: docs/revise-1.4.0.md updated with per-item status annotations.

Deliberately deferred (carried over from the 1.4.0 review): live verification of the HPOS search filter name (woocommerce_order_table_search_query_meta_keys), Network: plugin header for multisite, uninstall.php cleanup, and behaviour on the WC 10.x block-based order edit screen. None of these were addressed by 1.4.1.

1.4.0 — 2026-05-12

• Tested with: WordPress 6.9.4, WooCommerce 10.7.0 (HPOS enabled).

Resolution of every finding catalogued in docs/revise-1.3.2.md. Highlights:

• Fixed: Search by External Order Number is now functional. The meta-key mismatch is resolved (external_ref_ord_no consistently, no _ prefix), and the integration uses WooCommerce's own search filters (woocommerce_shop_order_search_fields for legacy CPT and woocommerce_order_table_search_query_meta_keys for HPOS). No separate UI input — typing the external order number into the standard Search orders box finds the order.
• Fixed: Order_Status_Manager::handle_status_transitions() now writes timestamps via wc_get_order()->update_meta_data() instead of update_post_meta(). Print-date stamps are no longer silently lost under HPOS for non-bulk status transitions.
• Fixed: CSV imports now deduplicate rows by order_no (per the original spec) and accept both the spec's title-case headers and the lowercase form documented in the README.
• Fixed: "Prepare to Printing Export" is now atomic — the CSV is generated in memory before any status change. Order status is advanced after a successful CSV build. If the export query returns no rows the user is notified.
• Fixed: Export CSV is now UTF-8 with BOM (charset=utf-8 header + leading \xEF\xBB\xBF). Czech diacritics render correctly in Excel on Windows.
• Fixed: Export SQL no longer multiplies rows when a product belongs to multiple product_cat terms — categories are concatenated via GROUP_CONCAT(DISTINCT …) inside a GROUP BY per line item.
• Fixed: Export SQL now goes through $wpdb->prepare() with %d placeholders rather than relying on intval() for safety.
• Fixed: Late woocommerce_payment_complete events no longer demote orders already in to-print or in-print back to processing. The guard extends to all print statuses plus completed.
• Fixed: Bulk actions guard with current_user_can('edit_shop_orders'). Imports keep their existing manage_woocommerce guard.
• Fixed: Bulk actions and protocol imports skip orders in terminal statuses (completed, cancelled, refunded, failed) instead of silently reactivating them.
• Fixed: UtilsLog::log() guard is now defined('WP_DEBUG') && WP_DEBUG (previously true === WP_DEBUG, which failed when WP_DEBUG was defined as integer 1).
• Fixed: UtilsLog::message() is now implemented as a per-user transient that renders via the admin_notices hook. Bulk actions and imports now produce visible user feedback after the redirect.
• Fixed: parse_csv() no longer truncates rows at 1000 bytes (passes 0 to fgetcsv), validates that the header row is non-empty, normalises header casing, and skips rows whose column count diverges from the header.
• Fixed: Import handlers verify $_FILES[...]['error'] and is_uploaded_file() server-side instead of relying solely on the client-side accept=".csv" attribute.
• Fixed: external_ref_ord_date is parsed via strtotime() and stored in MySQL datetime format; if parsing fails the raw value is retained.
• Added: external_ref_ord_date is now rendered in the Print Information panel on the order edit screen.
• Added: STUDIOU_WC_OPS_VERSION and STUDIOU_WC_OPS_FILE constants for code-side version references.
• Changed: Translation loader and plugin bootstrap now have explicit plugins_loaded priorities (5 and 10) so translations are guaranteed to load before any manager instantiates.
• Removed: // visualized leftover comments and the dead-code commented body of UtilsLog::message().
• Docs: README architecture/install/usage updated, CLAUDE.md updated, docs/translations.txt extended with the strings that were missing.

Translations: the .po file ships new strings; the .mo file must be rebuilt (e.g. via wp i18n make-mo languages/ or Poedit) before the new Czech wording is visible. This release does not regenerate the binary.

1.3.2 — 2025-10-18

• Fixed: prod_var_type column was empty in prepare_to_printing_export.csv. Variation attribute is now resolved through postmeta.attribute_pa_format joined against wp_terms.name.
• Fixed: HPOS incompatibility warning. Plugin now explicitly declares custom_order_tables compatibility.
• Tested: WordPress 6.8.3, WooCommerce 10.2.2 with HPOS enabled.

1.3.1

• Previous stable release.

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Support

For bug reports, feature requests or commercial support, contact quadarax.com.

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License

Released under the GNU General Public License v2.0 or later — see https://www.gnu.org/licenses/gpl-2.0.html.