diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 653aa6e..777f092 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -29,7 +29,7 @@ jobs:
       R_KEEP_PKG_SOURCE: yes
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-pandoc@v2
 
@@ -51,3 +51,4 @@ jobs:
           MYSQL_PASSWORD: ${{ secrets.MYSQL_PASSWORD }}
         with:
           upload-snapshots: true
+          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index f4c4ef2..f60d047 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -14,7 +14,7 @@ jobs:
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-r@v2
         with:
diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
index ed7650c..a7276e8 100644
--- a/.github/workflows/pkgdown.yaml
+++ b/.github/workflows/pkgdown.yaml
@@ -22,7 +22,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-pandoc@v2
 
@@ -41,7 +41,7 @@ jobs:
 
       - name: Deploy to GitHub pages 🚀
         if: github.event_name != 'pull_request'
-        uses: JamesIves/github-pages-deploy-action@v4.4.1
+        uses: JamesIves/github-pages-deploy-action@v4.5.0
         with:
           clean: false
           branch: gh-pages
diff --git a/.github/workflows/test-coverage.yaml b/.github/workflows/test-coverage.yaml
index ce99f80..709a124 100644
--- a/.github/workflows/test-coverage.yaml
+++ b/.github/workflows/test-coverage.yaml
@@ -15,7 +15,7 @@ jobs:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-r@v2
         with:
@@ -43,12 +43,12 @@ jobs:
         if: always()
         run: |
           ## --------------------------------------------------------------------
-          find ${{ runner.temp }}/package -name 'testthat.Rout*' -exec cat '{}' \; || true
+          find '${{ runner.temp }}/package' -name 'testthat.Rout*' -exec cat '{}' \; || true
         shell: bash
 
       - name: Upload test results
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage-test-failures
           path: ${{ runner.temp }}/package
diff --git a/DESCRIPTION b/DESCRIPTION
index 76625f9..ababa6f 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: tarflow.iquizoo
 Title: Setup "targets" Workflows for "iquizoo" Data Processing
-Version: 3.9.3
+Version: 3.9.3.9000
 Authors@R: c(
     person("Liang", "Zhang", , "psychelzh@outlook.com", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0001-9041-1150")),
@@ -22,14 +22,11 @@ Imports:
     cli,
     data.iquizoo (>= 2023.10.22),
     DBI,
-    dplyr,
     memoise,
-    purrr,
     rlang (>= 1.0.0),
     stringr,
     tarchetypes,
-    targets,
-    tidyr
+    targets
 Suggests:
     bit64,
     covr,
@@ -37,11 +34,11 @@ Suggests:
     lifecycle,
     odbc,
     preproc.iquizoo (>= 2.6.0),
+    purrr,
     RMariaDB (>= 1.3.1),
     roxygen2,
     testthat (>= 3.0.0),
     tibble,
-    tidytable,
     withr
 Remotes:
     psychelzh/data.iquizoo,
diff --git a/NAMESPACE b/NAMESPACE
index d137ab8..c1939fc 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -7,8 +7,9 @@ export(fetch_iquizoo_mem)
 export(setup_option_file)
 export(setup_source)
 export(setup_templates)
+export(tar_fetch_data)
 export(tar_prep_iquizoo)
+export(tar_prep_proj)
+export(tar_prep_raw)
 export(use_targets_pipeline)
-import(dplyr)
 import(rlang)
-import(tidyr)
diff --git a/NEWS.md b/NEWS.md
index 321ae48..49371ee 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,17 @@
+# tarflow.iquizoo (development version)
+
+## Breaking Changes
+
+* Now `query` argument of `fetch_data()` is optional. If not specified, the default query stored in the package will be used.
+
+## Enhancements
+
+* Added `suffix_format` argument to `fetch_data()` to specify the format of suffix in the query file. This is useful when you want to use a different format of suffix in the query file.
+* Enhanced the documentation of `fetch_data()`.
+* Let package not depend on dplyr, tidyr and purrr packages (#84).
+* Exported more targets factory functions: `tar_prep_proj()`, `tar_fetch_data()`, `tar_prep_raw()`.
+* Do not add `progress_hash` objects when `check_progress` is set to `FALSE` in `tar_prep_iquizoo()`.
+
 # tarflow.iquizoo 3.9.3
 
 ## Breaking Changes
diff --git a/R/database.R b/R/database.R
index ef540bb..e31669c 100644
--- a/R/database.R
+++ b/R/database.R
@@ -70,25 +70,46 @@ fetch_iquizoo_mem <- function(cache = NULL) {
 
 #' Fetch data from iQuizoo database
 #'
-#' @param query A parameterized SQL query. Note the query should also contain
-#'   a `glue` expression to inject the table name, i.e., `"{ table_name }"`.
+#' This function is a wrapper of [fetch_iquizoo()], which is used as a helper
+#' function to fetch data from the iQuizoo database.
+#'
+#' The data essentially means one of the two types of data: raw data or scores.
+#' The raw data is the original data collected from the game, while the scores
+#' are the scores calculated by the iQuizoo system. While scores can also be
+#' calculated from the raw data, the pre-calculated scores are used to for some
+#' quick analysis.
+#'
+#' The data is separated by project date, so the table name is suffixed by the
+#' project date, which is automatically fetched from the database by this
+#' function. You could set the format of the date suffix by `suffix_format`,
+#' although currently you should not need to change it because it probably will
+#' not change in the future. Finally, this suffix should be substituted into the
+#' query, which should contain an expression to inject the table name, i.e.,
+#' `"{table_name}"`.
+#'
 #' @param project_id The project id to be bound to the query.
 #' @param game_id The game id to be bound to the query.
 #' @param ... Further arguments passed to [fetch_iquizoo()].
 #' @param what What to fetch. Can be either "raw_data" or "scores".
+#' @param query A parameterized SQL query. A default query file is stored in the
+#'   package, which is often enough for most cases. You can also specify your
+#'   own query file by this argument. See details for more information.
+#' @param suffix_format The format of the date suffix. See details for more
+#'   information.
 #' @return A [data.frame] contains the fetched data.
 #' @export
-fetch_data <- function(query, project_id, game_id, ...,
-                       what = c("raw_data", "scores")) {
+fetch_data <- function(project_id, game_id, ...,
+                       what = c("raw_data", "scores"),
+                       query = NULL,
+                       suffix_format = "%Y0101") {
   check_dots_used()
   what <- match.arg(what)
-  # the database stores data from each year into a separate table with the
-  # suffix of course date with the format "<year>0101"
+  # data separated by project date, so we need to get the project date first
   suffix <- package_file("sql", "project_date.sql") |>
     read_file() |>
     fetch_iquizoo(params = project_id) |>
     .subset2("project_date") |>
-    format("%Y0101")
+    format(suffix_format)
   table_name <- paste0(
     switch(what,
       raw_data = "content_orginal_data_",
@@ -96,6 +117,7 @@ fetch_data <- function(query, project_id, game_id, ...,
     ),
     suffix
   )
+  query <- query %||% read_file(package_file("sql", paste0(what, ".sql")))
   fetch_iquizoo(
     stringr::str_glue(
       query,
@@ -105,96 +127,3 @@ fetch_data <- function(query, project_id, game_id, ...,
     params = list(project_id, game_id)
   )
 }
-
-#' Set data source
-#'
-#' @param driver The driver used. Set as an option of `"tarflow.driver"`.
-#'   Options are [odbc::odbc()] and [RMariaDB::MariaDB()], both of which need
-#'   pre-configurations. Default to first available one.
-#' @param dsn The data source name of an **ODBC** database connector. See
-#'   [odbc::dbConnect()] for more information. Used when `driver` is set as
-#'   [odbc::odbc()].
-#' @param groups Section identifier in the `default.file`. See
-#'   [RMariaDB::MariaDB()] for more information. Used when `driver` is set as
-#'   [RMariaDB::MariaDB()].
-#' @return An S3 class of `tarflow.source` with the options.
-#' @export
-setup_source <- function(driver = getOption("tarflow.driver"),
-                         dsn = getOption("tarflow.dsn"),
-                         groups = getOption("tarflow.groups")) {
-  structure(
-    list(
-      driver = driver,
-      dsn = dsn,
-      groups = groups
-    ),
-    class = "tarflow.source"
-  )
-}
-
-#' Check if the database based on the given data source is ready
-#'
-#' @param source The data source from which data is fetched. See
-#'    [setup_source()] for details.
-#' @return TRUE if the database is ready, FALSE otherwise.
-#' @export
-check_source <- function(source = setup_source()) {
-  if (!inherits(source, "tarflow.source")) {
-    cli::cli_abort(
-      "{.arg source} must be created by {.fun setup_source}.",
-      class = "tarflow_bad_source"
-    )
-  }
-  # nocov start
-  if (inherits(source$driver, "OdbcDriver")) {
-    return(DBI::dbCanConnect(source$driver, dsn = source$dsn))
-  }
-  # nocov end
-  if (inherits(source$driver, "MariaDBDriver")) {
-    return(DBI::dbCanConnect(source$driver, groups = source$groups))
-  }
-  return(FALSE)
-}
-
-# nocov start
-
-#' Setup MySQL database connection option file
-#'
-#' This function will create a MySQL option file at the given path. To ensure it
-#' works, set these environment variables before calling this function:
-#' - `MYSQL_HOST`: The host name of the MySQL server.
-#' - `MYSQL_USER`: The user name of the MySQL server.
-#' - `MYSQL_PASSWORD`: The password of the MySQL server.
-#'
-#' @param path The path to the option file. Default location is operating system
-#'   dependent. On Windows, it is `C:/my.cnf`. On other systems, it is
-#'   `~/.my.cnf`.
-#' @param overwrite Whether to overwrite the existing option file.
-#' @param quietly A logical indicates whether message should be suppressed.
-#' @return NULL (invisible).
-#' @export
-setup_option_file <- function(path = NULL, overwrite = FALSE, quietly = FALSE) {
-  my_cnf_tmpl <- read_file(package_file("database", "my.cnf.tmpl"))
-  path <- path %||% default_file()
-  if (file.exists(path) && !overwrite) {
-    if (!quietly) {
-      cli::cli_alert_warning(
-        "Option file already exists. Use {.arg overwrite = TRUE} to overwrite.",
-        class = "tarflow_option_file_exists"
-      )
-    }
-    return(invisible())
-  }
-  writeLines(stringr::str_glue(my_cnf_tmpl), path)
-}
-
-# helper functions
-default_file <- function() {
-  if (Sys.info()["sysname"] == "Windows") {
-    return("C:/my.cnf")
-  } else {
-    return("~/.my.cnf")
-  }
-}
-
-# nocov end
diff --git a/R/setup.R b/R/setup.R
new file mode 100644
index 0000000..0c184a6
--- /dev/null
+++ b/R/setup.R
@@ -0,0 +1,131 @@
+#' Set up templates used to fetch data
+#'
+#' If you want to extract data based on your own parameters, you should use this
+#' function to set up your own SQL templates. Note that the SQL queries should
+#' be parameterized.
+#'
+#' @param contents The SQL template file used to fetch contents. At least
+#'   `project_id` and `game_id` columns should be included in the fetched data
+#'   based on the template. `project_id` will be used as the only parameter in
+#'   `users` and `project` templates, while all three will be used in `raw_data`
+#'   and `scores` templates.
+#' @param users The SQL template file used to fetch users. Usually you don't
+#'   need to change this.
+#' @param raw_data The SQL template file used to fetch raw data. See
+#'   [fetch_data()] for details. Usually you don't need to change this.
+#' @param scores The SQL template file used to fetch scores. See [fetch_data()]
+#'   for details. Usually you don't need to change this.
+#' @param progress_hash The SQL template file used to fetch progress hash.
+#'   Usually you don't need to change this.
+#' @return A S3 object of class `tarflow.template` with the options.
+#' @export
+setup_templates <- function(contents = NULL,
+                            users = NULL,
+                            raw_data = NULL,
+                            scores = NULL,
+                            progress_hash = NULL) {
+  structure(
+    list(
+      contents = contents %||% package_file("sql", "contents.sql"),
+      users = users %||% package_file("sql", "users.sql"),
+      raw_data = raw_data %||% package_file("sql", "raw_data.sql"),
+      scores = scores %||% package_file("sql", "scores.sql"),
+      progress_hash = progress_hash %||%
+        package_file("sql", "progress_hash.sql")
+    ),
+    class = "tarflow.template"
+  )
+}
+
+#' Set data source
+#'
+#' @param driver The driver used. Set as an option of `"tarflow.driver"`.
+#'   Options are [odbc::odbc()] and [RMariaDB::MariaDB()], both of which need
+#'   pre-configurations. Default to first available one.
+#' @param dsn The data source name of an **ODBC** database connector. See
+#'   [odbc::dbConnect()] for more information. Used when `driver` is set as
+#'   [odbc::odbc()].
+#' @param groups Section identifier in the `default.file`. See
+#'   [RMariaDB::MariaDB()] for more information. Used when `driver` is set as
+#'   [RMariaDB::MariaDB()].
+#' @return An S3 class of `tarflow.source` with the options.
+#' @export
+setup_source <- function(driver = getOption("tarflow.driver"),
+                         dsn = getOption("tarflow.dsn"),
+                         groups = getOption("tarflow.groups")) {
+  structure(
+    list(
+      driver = driver,
+      dsn = dsn,
+      groups = groups
+    ),
+    class = "tarflow.source"
+  )
+}
+
+#' Check if the database based on the given data source is ready
+#'
+#' @param source The data source from which data is fetched. See
+#'    [setup_source()] for details.
+#' @return TRUE if the database is ready, FALSE otherwise.
+#' @export
+check_source <- function(source = setup_source()) {
+  if (!inherits(source, "tarflow.source")) {
+    cli::cli_abort(
+      "{.arg source} must be created by {.fun setup_source}.",
+      class = "tarflow_bad_source"
+    )
+  }
+  # nocov start
+  if (inherits(source$driver, "OdbcDriver")) {
+    return(DBI::dbCanConnect(source$driver, dsn = source$dsn))
+  }
+  # nocov end
+  if (inherits(source$driver, "MariaDBDriver")) {
+    return(DBI::dbCanConnect(source$driver, groups = source$groups))
+  }
+  return(FALSE)
+}
+
+# nocov start
+
+#' Setup MySQL database connection option file
+#'
+#' This function will create a MySQL option file at the given path. To ensure it
+#' works, set these environment variables before calling this function:
+#' - `MYSQL_HOST`: The host name of the MySQL server.
+#' - `MYSQL_USER`: The user name of the MySQL server.
+#' - `MYSQL_PASSWORD`: The password of the MySQL server.
+#'
+#' @param path The path to the option file. Default location is operating system
+#'   dependent. On Windows, it is `C:/my.cnf`. On other systems, it is
+#'   `~/.my.cnf`.
+#' @param overwrite Whether to overwrite the existing option file.
+#' @param quietly A logical indicates whether message should be suppressed.
+#' @return NULL (invisible).
+#' @export
+setup_option_file <- function(path = NULL, overwrite = FALSE, quietly = FALSE) {
+  my_cnf_tmpl <- read_file(package_file("database", "my.cnf.tmpl"))
+  path <- path %||% default_file()
+  if (file.exists(path) && !overwrite) {
+    if (!quietly) {
+      cli::cli_alert_warning(
+        "Option file already exists. Use {.arg overwrite = TRUE} to overwrite.",
+        class = "tarflow_option_file_exists"
+      )
+    }
+    return(invisible())
+  }
+  writeLines(stringr::str_glue(my_cnf_tmpl), path)
+}
+
+# helper functions
+default_file <- function() {
+  if (Sys.info()["sysname"] == "Windows") {
+    return("C:/my.cnf")
+  } else {
+    return("~/.my.cnf")
+  }
+}
+
+# nocov end
diff --git a/R/targets.R b/R/targets.R
index e82f1f5..3636270 100644
--- a/R/targets.R
+++ b/R/targets.R
@@ -78,14 +78,14 @@ tar_prep_iquizoo <- function(params, ...,
       "contents_origin",
       expr(unserialize(!!serialize(contents, NULL)))
     ),
-    tar_projects_info(contents, templates, check_progress),
-    purrr::map(
+    tar_prep_proj(contents, templates, check_progress),
+    sapply(
       what,
-      \(what) tar_fetch_data(contents, templates, what)
-    ) |>
-      purrr::list_flatten(),
+      \(what) tar_fetch_data(contents, templates, what, check_progress),
+      simplify = FALSE
+    ),
     if ("raw_data" %in% what && action_raw_data != "none") {
-      tar_action_raw_data(contents, action_raw_data)
+      tar_prep_raw(contents, action_raw_data)
     }
   )
   c(
@@ -102,70 +102,49 @@ tar_prep_iquizoo <- function(params, ...,
   )
 }
 
-#' Set up templates used to fetch data
+#' Generate a set of targets for preparing project-level data
 #'
-#' If you want to extract data based on your own parameters, you should use this
-#' function to set up your own SQL templates. Note that the SQL queries should
-#' be parameterized.
+#' There are mainly two types of data to be fetched, i.e., the progress hash and
+#' the user information. The former is used to check the progress of the
+#' project, while the latter is used to identify the users involved in the
+#' project.
 #'
-#' @param contents The SQL template file used to fetch contents. At least
-#'   `project_id` and `game_id` columns should be included in the fetched data
-#'   based on the template. `project_id` will be used as the only parameter in
-#'   `users` and `project` templates, while all three will be used in `raw_data`
-#'   and `scores` templates.
-#' @param users The SQL template file used to fetch users. Usually you don't
-#'   need to change this.
-#' @param raw_data The SQL template file used to fetch raw data. See
-#'   [fetch_data()] for details. Usually you don't need to change this.
-#' @param scores The SQL template file used to fetch scores. See [fetch_data()]
-#'   for details. Usually you don't need to change this.
-#' @param progress_hash The SQL template file used to fetch progress hash.
-#'   Usually you don't need to change this.
-#' @return A S3 object of class `tarflow.template` with the options.
+#' @param contents The contents structure used as the configuration of data
+#'   fetching.
+#' @param templates The SQL template files used to fetch data. See
+#'   [setup_templates()] for details.
+#' @param check_progress Whether to check the progress hash. When set as `TRUE`,
+#'   a progress hash objects named as `progress_hash_{project_id}` for each
+#'   project will be added into the target list. Set it as `FALSE` if the
+#'   projects are finalized.
+#' @return A list of target objects.
 #' @export
-setup_templates <- function(contents = NULL,
-                            users = NULL,
-                            raw_data = NULL,
-                            scores = NULL,
-                            progress_hash = NULL) {
-  structure(
-    list(
-      contents = contents %||% package_file("sql", "contents.sql"),
-      users = users %||% package_file("sql", "users.sql"),
-      raw_data = raw_data %||% package_file("sql", "raw_data.sql"),
-      scores = scores %||% package_file("sql", "scores.sql"),
-      progress_hash = progress_hash %||%
-        package_file("sql", "progress_hash.sql")
-    ),
-    class = "tarflow.template"
-  )
-}
-
-# helper functions
-tar_projects_info <- function(contents, templates, check_progress) {
+tar_prep_proj <- function(contents,
+                          templates = setup_templates(),
+                          check_progress = TRUE) {
   c(
-    tarchetypes::tar_map(
-      contents |>
-        distinct(.data$project_id) |>
-        mutate(project_id = as.character(.data$project_id)),
-      targets::tar_target_raw(
-        "progress_hash",
-        expr(
-          fetch_iquizoo(
-            !!read_file(templates[["progress_hash"]]),
-            params = list(project_id)
-          )
-        ),
-        packages = "tarflow.iquizoo",
-        cue = targets::tar_cue(if (check_progress) "always")
+    if (check_progress) {
+      tarchetypes::tar_map(
+        data.frame(project_id = as.character(unique(contents$project_id))),
+        targets::tar_target_raw(
+          "progress_hash",
+          bquote(
+            fetch_iquizoo(
+              .(read_file(templates[["progress_hash"]])),
+              params = list(project_id)
+            )
+          ),
+          packages = "tarflow.iquizoo",
+          cue = targets::tar_cue("always")
+        )
       )
-    ),
+    },
     targets::tar_target_raw(
       "users",
-      expr(
+      bquote(
         fetch_iquizoo(
-          !!read_file(templates[["users"]]),
-          params = list(!!unique(contents$project_id))
+          .(read_file(templates[["users"]])),
+          params = list(.(unique(contents$project_id)))
         ) |>
           unique()
       ),
@@ -174,57 +153,92 @@ tar_projects_info <- function(contents, templates, check_progress) {
   )
 }
 
-tar_fetch_data <- function(contents, templates, what) {
-  tarchetypes::tar_map(
-    contents |>
-      distinct(.data$project_id, .data$game_id) |>
-      mutate(
-        across(c("project_id", "game_id"), as.character)
-      ) |>
-      summarise(
-        progress_hash = list(
-          syms(
-            stringr::str_glue("progress_hash_{project_id}")
+#' Generate a set of targets for fetching data
+#'
+#' This target factory is the main part of the `tar_prep_iquizoo` function. It
+#' fetches the raw data and scores for each project and task/game combination.
+#'
+#' @param contents The contents structure used as the configuration of data
+#'   fetching.
+#' @param templates The SQL template files used to fetch data. See
+#'   [setup_templates()] for details.
+#' @param what What to fetch.
+#' @param check_progress Whether to check the progress hash. If set as `TRUE`,
+#'   Before fetching the data, the progress hash objects named as
+#'   `progress_hash_{project_id}` will be depended on, which are typically
+#'   generated by [tar_prep_proj()]. If the projects are finalized, set this
+#'   argument as `FALSE`.
+#' @return A list of target objects.
+#' @export
+tar_fetch_data <- function(contents,
+                           templates = setup_templates(),
+                           what = c("raw_data", "scores"),
+                           check_progress = TRUE) {
+  what <- match.arg(what)
+  by(
+    contents,
+    contents$game_id,
+    \(contents) {
+      project_ids <- as.character(unique(contents$project_id))
+      game_id <- as.character(unique(contents$game_id))
+      targets::tar_target_raw(
+        paste0(what, "_", game_id),
+        as.call(c(
+          quote(`{`),
+          if (check_progress) {
+            bquote(
+              list(..(syms(paste0("progress_hash_", project_ids)))),
+              splice = TRUE
+            )
+          },
+          bquote(
+            do.call(
+              rbind,
+              .mapply(
+                fetch_data,
+                list(.(project_ids), .(game_id)),
+                MoreArgs = list(
+                  what = .(what),
+                  query = .(read_file(templates[[what]]))
+                )
+              )
+            )
           )
-        ),
-        project_id = list(.data$project_id),
-        .by = "game_id"
-      ),
-    names = "game_id",
-    targets::tar_target_raw(
-      what,
-      expr({
-        progress_hash
-        purrr::pmap(
-          list(
-            query = !!read_file(templates[[what]]),
-            project_id = project_id,
-            game_id = game_id,
-            what = !!what
-          ),
-          fetch_data
-        ) |>
-          purrr::list_rbind()
-      }),
-      packages = "tarflow.iquizoo"
-    )
+        )),
+        packages = "tarflow.iquizoo"
+      )
+    }
   )
 }
 
-tar_action_raw_data <- function(contents,
-                                action_raw_data,
-                                name_data = "raw_data",
-                                name_parsed = "raw_data_parsed",
-                                name_indices = "indices") {
+#' Generate a set of targets for wrangling and pre-processing raw data
+#'
+#' This target factory is the main part of the `tar_prep_iquizoo` function. It
+#' wrangles the raw data into a tidy format and calculates indices based on the
+#' parsed data.
+#'
+#' @param contents The contents structure used as the configuration of data
+#'   fetching.
+#' @param action_raw_data The action to be taken on the fetched raw data.
+#' @param name_data The name of the raw data target.
+#' @param name_parsed The name of the parsed data target.
+#' @param name_indices The name of the indices target.
+#' @return A list of target objects.
+#' @export
+tar_prep_raw <- function(contents,
+                         action_raw_data = c("all", "parse", "none"),
+                         name_data = "raw_data",
+                         name_parsed = "raw_data_parsed",
+                         name_indices = "indices") {
+  action_raw_data <- match.arg(action_raw_data)
   if (action_raw_data == "all") action_raw_data <- c("parse", "preproc")
-  contents <- distinct(contents, .data$game_id) |>
-    mutate(
-      tar_data = syms(sprintf("%s_%s", name_data, game_id)),
-      tar_parsed = syms(sprintf("%s_%s", name_parsed, game_id)),
-      tar_indices = syms(sprintf("%s_%s", name_indices, game_id))
-    )
+  contents <- unique(contents["game_id"])
+  contents$tar_data <- syms(sprintf("%s_%s", name_data, contents$game_id))
+  contents$tar_parsed <- syms(sprintf("%s_%s", name_parsed, contents$game_id))
+  contents$tar_indices <- syms(sprintf("%s_%s", name_indices, contents$game_id))
   list(
     raw_data_parsed = if ("parse" %in% action_raw_data) {
+      check_installed("preproc.iquizoo", "becasue required in wrangling.")
       tarchetypes::tar_eval(
         targets::tar_target(
           tar_parsed,
@@ -235,14 +249,14 @@ tar_action_raw_data <- function(contents,
       )
     },
     indices = if ("preproc" %in% action_raw_data) {
+      check_installed("preproc.iquizoo", "becasue required in pre-processing.")
       tarchetypes::tar_eval(
         targets::tar_target(
           tar_indices,
           preproc_data(tar_parsed, prep_fun, .input = input, .extra = extra),
           packages = "preproc.iquizoo"
         ),
-        contents |>
-          data.iquizoo::match_preproc(type = "inner")
+        data.iquizoo::match_preproc(contents, type = "inner")
       )
     }
   )
@@ -254,7 +268,6 @@ objects <- function() {
 
 utils::globalVariables(
   c(
-    "progress_hash", "project_id", "game_id",
     "tar_data", "tar_parsed", "tar_indices",
     "wrangle_data", "preproc_data",
     "prep_fun", "input", "extra"
diff --git a/R/zzz.R b/R/zzz.R
index 754642d..73175b0 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -1,6 +1,4 @@
 #' @import rlang
-#' @import dplyr
-#' @import tidyr
 NULL
 
 # nocov start
diff --git a/_pkgdown.yml b/_pkgdown.yml
index 5606e05..4ff8f0e 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -7,16 +7,19 @@ reference:
   contents:
   - use_targets_pipeline
   - tar_prep_iquizoo
+  - tar_prep_proj
+  - tar_fetch_data
+  - tar_prep_raw
 - title: "Low-level Database operations"
   desc: Functions to help you interact with database.
   contents:
   - fetch_iquizoo
   - fetch_iquizoo_mem
   - fetch_data
-  - check_source
-  - setup_option_file
 - title: "Miscellaneous Option Functions"
   desc: Functions to help you set up options.
   contents:
   - setup_templates
   - setup_source
+  - setup_option_file
+  - check_source
diff --git a/man/check_source.Rd b/man/check_source.Rd
index 9180d8c..0114107 100644
--- a/man/check_source.Rd
+++ b/man/check_source.Rd
@@ -1,5 +1,5 @@
 % Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/database.R
+% Please edit documentation in R/setup.R
 \name{check_source}
 \alias{check_source}
 \title{Check if the database based on the given data source is ready}
diff --git a/man/fetch_data.Rd b/man/fetch_data.Rd
index a05fed2..2e65bad 100644
--- a/man/fetch_data.Rd
+++ b/man/fetch_data.Rd
@@ -4,12 +4,16 @@
 \alias{fetch_data}
 \title{Fetch data from iQuizoo database}
 \usage{
-fetch_data(query, project_id, game_id, ..., what = c("raw_data", "scores"))
+fetch_data(
+  project_id,
+  game_id,
+  ...,
+  what = c("raw_data", "scores"),
+  query = NULL,
+  suffix_format = "\%Y0101"
+)
 }
 \arguments{
-\item{query}{A parameterized SQL query. Note the query should also contain
-a \code{glue} expression to inject the table name, i.e., \code{"{ table_name }"}.}
-
 \item{project_id}{The project id to be bound to the query.}
 
 \item{game_id}{The game id to be bound to the query.}
@@ -17,10 +21,33 @@ a \code{glue} expression to inject the table name, i.e., \code{"{ table_name }"}
 \item{...}{Further arguments passed to \code{\link[=fetch_iquizoo]{fetch_iquizoo()}}.}
 
 \item{what}{What to fetch. Can be either "raw_data" or "scores".}
+
+\item{query}{A parameterized SQL query. A default query file is stored in the
+package, which is often enough for most cases. You can also specify your
+own query file by this argument. See details for more information.}
+
+\item{suffix_format}{The format of the date suffix. See details for more
+information.}
 }
 \value{
 A \link{data.frame} contains the fetched data.
 }
 \description{
-Fetch data from iQuizoo database
+This function is a wrapper of \code{\link[=fetch_iquizoo]{fetch_iquizoo()}}, which is used as a helper
+function to fetch data from the iQuizoo database.
+}
+\details{
+The data essentially means one of the two types of data: raw data or scores.
+The raw data is the original data collected from the game, while the scores
+are the scores calculated by the iQuizoo system. While scores can also be
+calculated from the raw data, the pre-calculated scores are used to for some
+quick analysis.
+
+The data is separated by project date, so the table name is suffixed by the
+project date, which is automatically fetched from the database by this
+function. You could set the format of the date suffix by \code{suffix_format},
+although currently you should not need to change it because it probably will
+not change in the future. Finally, this suffix should be substituted into the
+query, which should contain an expression to inject the table name, i.e.,
+\code{"{table_name}"}.
 }
diff --git a/man/setup_option_file.Rd b/man/setup_option_file.Rd
index e76ddbf..af9abdd 100644
--- a/man/setup_option_file.Rd
+++ b/man/setup_option_file.Rd
@@ -1,5 +1,5 @@
 % Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/database.R
+% Please edit documentation in R/setup.R
 \name{setup_option_file}
 \alias{setup_option_file}
 \title{Setup MySQL database connection option file}
diff --git a/man/setup_source.Rd b/man/setup_source.Rd
index 7a47d67..f082d09 100644
--- a/man/setup_source.Rd
+++ b/man/setup_source.Rd
@@ -1,5 +1,5 @@
 % Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/database.R
+% Please edit documentation in R/setup.R
 \name{setup_source}
 \alias{setup_source}
 \title{Set data source}
diff --git a/man/setup_templates.Rd b/man/setup_templates.Rd
index 16d708a..a66961e 100644
--- a/man/setup_templates.Rd
+++ b/man/setup_templates.Rd
@@ -1,5 +1,5 @@
 % Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/targets.R
+% Please edit documentation in R/setup.R
 \name{setup_templates}
 \alias{setup_templates}
 \title{Set up templates used to fetch data}
diff --git a/man/tar_fetch_data.Rd b/man/tar_fetch_data.Rd
new file mode 100644
index 0000000..8a52434
--- /dev/null
+++ b/man/tar_fetch_data.Rd
@@ -0,0 +1,35 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/targets.R
+\name{tar_fetch_data}
+\alias{tar_fetch_data}
+\title{Generate a set of targets for fetching data}
+\usage{
+tar_fetch_data(
+  contents,
+  templates = setup_templates(),
+  what = c("raw_data", "scores"),
+  check_progress = TRUE
+)
+}
+\arguments{
+\item{contents}{The contents structure used as the configuration of data
+fetching.}
+
+\item{templates}{The SQL template files used to fetch data. See
+\code{\link[=setup_templates]{setup_templates()}} for details.}
+
+\item{what}{What to fetch.}
+
+\item{check_progress}{Whether to check the progress hash. If set as \code{TRUE},
+Before fetching the data, the progress hash objects named as
+\verb{progress_hash_\{project_id\}} will be depended on, which are typically
+generated by \code{\link[=tar_prep_proj]{tar_prep_proj()}}. If the projects are finalized, set this
+argument as \code{FALSE}.}
+}
+\value{
+A list of target objects.
+}
+\description{
+This target factory is the main part of the \code{tar_prep_iquizoo} function. It
+fetches the raw data and scores for each project and task/game combination.
+}
diff --git a/man/tar_prep_proj.Rd b/man/tar_prep_proj.Rd
new file mode 100644
index 0000000..17b2101
--- /dev/null
+++ b/man/tar_prep_proj.Rd
@@ -0,0 +1,29 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/targets.R
+\name{tar_prep_proj}
+\alias{tar_prep_proj}
+\title{Generate a set of targets for preparing project-level data}
+\usage{
+tar_prep_proj(contents, templates = setup_templates(), check_progress = TRUE)
+}
+\arguments{
+\item{contents}{The contents structure used as the configuration of data
+fetching.}
+
+\item{templates}{The SQL template files used to fetch data. See
+\code{\link[=setup_templates]{setup_templates()}} for details.}
+
+\item{check_progress}{Whether to check the progress hash. When set as \code{TRUE},
+a progress hash objects named as \verb{progress_hash_\{project_id\}} for each
+project will be added into the target list. Set it as \code{FALSE} if the
+projects are finalized.}
+}
+\value{
+A list of target objects.
+}
+\description{
+There are mainly two types of data to be fetched, i.e., the progress hash and
+the user information. The former is used to check the progress of the
+project, while the latter is used to identify the users involved in the
+project.
+}
diff --git a/man/tar_prep_raw.Rd b/man/tar_prep_raw.Rd
new file mode 100644
index 0000000..bbf5214
--- /dev/null
+++ b/man/tar_prep_raw.Rd
@@ -0,0 +1,34 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/targets.R
+\name{tar_prep_raw}
+\alias{tar_prep_raw}
+\title{Generate a set of targets for wrangling and pre-processing raw data}
+\usage{
+tar_prep_raw(
+  contents,
+  action_raw_data = c("all", "parse", "none"),
+  name_data = "raw_data",
+  name_parsed = "raw_data_parsed",
+  name_indices = "indices"
+)
+}
+\arguments{
+\item{contents}{The contents structure used as the configuration of data
+fetching.}
+
+\item{action_raw_data}{The action to be taken on the fetched raw data.}
+
+\item{name_data}{The name of the raw data target.}
+
+\item{name_parsed}{The name of the parsed data target.}
+
+\item{name_indices}{The name of the indices target.}
+}
+\value{
+A list of target objects.
+}
+\description{
+This target factory is the main part of the \code{tar_prep_iquizoo} function. It
+wrangles the raw data into a tidy format and calculates indices based on the
+parsed data.
+}
diff --git a/tests/testthat/_snaps/targets.md b/tests/testthat/_snaps/targets.md
index 6cc92cc..2c60a50 100644
--- a/tests/testthat/_snaps/targets.md
+++ b/tests/testthat/_snaps/targets.md
@@ -3,6 +3,188 @@
     {
       "type": "character",
       "attributes": {},
-      "value": ["contents_origin", "indices_383674715747205", "indices_383679060169477", "indices_383791726646021", "indices_383795602420485", "progress_hash_555452035072389", "raw_data_383674715747205", "raw_data_383679060169477", "raw_data_383791726646021", "raw_data_383795602420485", "raw_data_388200929063813", "raw_data_388594665001861", "raw_data_391556354638725", "raw_data_parsed_383674715747205", "raw_data_parsed_383679060169477", "raw_data_parsed_383791726646021", "raw_data_parsed_383795602420485", "raw_data_parsed_388200929063813", "raw_data_parsed_388594665001861", "raw_data_parsed_391556354638725", "scores_383674715747205", "scores_383679060169477", "scores_383791726646021", "scores_383795602420485", "scores_388200929063813", "scores_388594665001861", "scores_391556354638725", "users"]
+      "value": ["contents_origin", "indices_383674715747205", "indices_383679060169477", "indices_383791726646021", "indices_383795602420485", "progress_hash_555452035072389", "raw_data_383674715747205", "raw_data_383679060169477", "raw_data_383791726646021", "raw_data_383795602420485", "raw_data_388200929063813", "raw_data_388594665001861", "raw_data_391556354638725", "raw_data_parsed_383674715747205", "raw_data_parsed_383679060169477", "raw_data_parsed_383791726646021", "raw_data_parsed_383795602420485", "raw_data_parsed_388200929063813", "raw_data_parsed_388594665001861", "raw_data_parsed_391556354638725", "scores", "scores_383674715747205", "scores_383679060169477", "scores_383791726646021", "scores_383795602420485", "scores_388200929063813", "scores_388594665001861", "scores_391556354638725", "users"]
+    }
+
+---
+
+    {
+      "type": "list",
+      "attributes": {
+        "names": {
+          "type": "character",
+          "attributes": {},
+          "value": ["user_id", "user_name", "user_sex", "user_dob", "organization_name", "grade_name", "class_name"]
+        },
+        "row.names": {
+          "type": "integer",
+          "attributes": {},
+          "value": [1, 2, 3, 4, 5, 6, 7]
+        },
+        "class": {
+          "type": "character",
+          "attributes": {},
+          "value": ["data.frame"]
+        }
+      },
+      "value": [
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["integer64"]
+            }
+          },
+          "value": [2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309]
+        },
+        {
+          "type": "character",
+          "attributes": {},
+          "value": ["陈佳洋", "茹祎", "于胜蓝", "李荟镕", "张忱涵", "连宗鸿", "徐小琳"]
+        },
+        {
+          "type": "integer",
+          "attributes": {},
+          "value": [2, 2, 2, 2, 2, 2, 2]
+        },
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["Date"]
+            }
+          },
+          "value": [-25202, -25201, -25200, -25199, -25198, -25197, -25196]
+        },
+        {
+          "type": "character",
+          "attributes": {},
+          "value": ["北京师范大学", "北京师范大学", "北京师范大学", "北京师范大学", "北京师范大学", "北京师范大学", "北京师范大学"]
+        },
+        {
+          "type": "character",
+          "attributes": {},
+          "value": ["睡眠实验", "睡眠实验", "睡眠实验", "睡眠实验", "睡眠实验", "睡眠实验", "睡眠实验"]
+        },
+        {
+          "type": "character",
+          "attributes": {},
+          "value": ["行为实验1April", "行为实验1April", "行为实验1April", "行为实验1April", "行为实验1April", "行为实验1April", "行为实验1April"]
+        }
+      ]
+    }
+
+---
+
+    {
+      "type": "list",
+      "attributes": {
+        "names": {
+          "type": "character",
+          "attributes": {},
+          "value": ["project_id", "user_id", "game_id", "game_version", "game_time", "ability_id", "game_stage", "game_star", "game_score_raw", "game_score_std"]
+        },
+        "row.names": {
+          "type": "integer",
+          "attributes": {},
+          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49]
+        },
+        "class": {
+          "type": "character",
+          "attributes": {},
+          "value": ["data.frame"]
+        }
+      },
+      "value": [
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["integer64"]
+            }
+          },
+          "value": [2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309, 2.74429768e-309]
+        },
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["integer64"]
+            }
+          },
+          "value": [2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309, 2.0185087e-309]
+        },
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["integer64"]
+            }
+          },
+          "value": [1.89560496e-309, 1.89560496e-309, 1.89560496e-309, 1.89560496e-309, 1.89560496e-309, 1.89560496e-309, 1.89560496e-309, 1.89562643e-309, 1.89562643e-309, 1.89562643e-309, 1.89562643e-309, 1.89562643e-309, 1.89562643e-309, 1.89562643e-309, 1.89618307e-309, 1.89618307e-309, 1.89618307e-309, 1.89618307e-309, 1.89618307e-309, 1.89618307e-309, 1.89618307e-309, 1.89620222e-309, 1.89620222e-309, 1.89620222e-309, 1.89620222e-309, 1.89620222e-309, 1.89620222e-309, 1.89620222e-309, 1.91796743e-309, 1.91796743e-309, 1.91796743e-309, 1.91796743e-309, 1.91796743e-309, 1.91796743e-309, 1.91796743e-309, 1.91991274e-309, 1.91991274e-309, 1.91991274e-309, 1.91991274e-309, 1.91991274e-309, 1.91991274e-309, 1.91991274e-309, 1.93454543e-309, 1.93454543e-309, 1.93454543e-309, 1.93454543e-309, 1.93454543e-309, 1.93454543e-309, 1.93454543e-309]
+        },
+        {
+          "type": "character",
+          "attributes": {},
+          "value": ["1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "1.0.0", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]
+        },
+        {
+          "type": "double",
+          "attributes": {
+            "tzone": {
+              "type": "character",
+              "attributes": {},
+              "value": ["UTC"]
+            },
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["POSIXct", "POSIXt"]
+            }
+          },
+          "value": [1681982990, 1681983549, 1681985473, 1681985928, 1681987439, 1681988555, 1681988878, 1681983054, 1681983633, 1681985540, 1681986023, 1681987536, 1681988613, 1681988956, 1681983245, 1681983843, 1681985675, 1681986218, 1681987764, 1681988767, 1681989104, 1681983341, 1681983950, 1681985742, 1681986338, 1681987893, 1681988820, 1681989201, 1681982923, 1681983470, 1681985408, 1681985868, 1681987354, 1681988489, 1681988797, 1681982784, 1681983237, 1681985329, 1681985755, 1681987218, 1681988416, 1681988719, 1681983351, 1681983969, 1681985754, 1681986356, 1681987913, 1681988834, 1681989212]
+        },
+        {
+          "type": "double",
+          "attributes": {
+            "class": {
+              "type": "character",
+              "attributes": {},
+              "value": ["integer64"]
+            }
+          },
+          "value": [1.89560665e-309, 1.89560665e-309, 1.89560665e-309, 1.89560665e-309, 1.89560665e-309, 1.89560665e-309, 1.89560665e-309, 1.89563061e-309, 1.89563061e-309, 1.89563061e-309, 1.89563061e-309, 1.89563061e-309, 1.89563061e-309, 1.89563061e-309, 1.89618415e-309, 1.89618415e-309, 1.89618415e-309, 1.89618415e-309, 1.89618415e-309, 1.89618415e-309, 1.89618415e-309, 1.89620278e-309, 1.89620278e-309, 1.89620278e-309, 1.89620278e-309, 1.89620278e-309, 1.89620278e-309, 1.89620278e-309, 1.9179678e-309, 1.9179678e-309, 1.9179678e-309, 1.9179678e-309, 1.9179678e-309, 1.9179678e-309, 1.9179678e-309, 1.91991319e-309, 1.91991319e-309, 1.91991319e-309, 1.91991319e-309, 1.91991319e-309, 1.91991319e-309, 1.91991319e-309, 1.93454615e-309, 1.93454615e-309, 1.93454615e-309, 1.93454615e-309, 1.93454615e-309, 1.93454615e-309, 1.93454615e-309]
+        },
+        {
+          "type": "integer",
+          "attributes": {},
+          "value": [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
+        },
+        {
+          "type": "integer",
+          "attributes": {},
+          "value": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+        },
+        {
+          "type": "double",
+          "attributes": {},
+          "value": [-0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+        },
+        {
+          "type": "double",
+          "attributes": {},
+          "value": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+        }
+      ]
     }
 
diff --git a/tests/testthat/test-targets.R b/tests/testthat/test-targets.R
index 74fa362..d04473c 100644
--- a/tests/testthat/test-targets.R
+++ b/tests/testthat/test-targets.R
@@ -52,10 +52,12 @@ test_that("Workflow works", {
         ~organization_name, ~project_name,
         "北京师范大学", "4.19-4.20夜晚睡眠test"
       )
-      tar_prep_iquizoo(params)
+      tar_prep_iquizoo(params, combine = "scores")
     })
     targets::tar_make(reporter = "silent", callr_function = NULL)
     expect_snapshot_value(targets::tar_objects(), style = "json2")
+    expect_snapshot_value(targets::tar_read(users), style = "json2")
+    expect_snapshot_value(targets::tar_read(scores), style = "json2")
   })
 })
 
@@ -149,3 +151,23 @@ test_that("Ensure project date is used", {
     nrow(targets::tar_read(scores)) |> expect_gt(0)
   })
 })
+
+test_that("Ensure `check_progress = FALSE` work", {
+  targets::tar_dir({
+    targets::tar_script({
+      library(targets)
+      tar_prep_iquizoo(
+        contents = data.frame(
+          project_id = bit64::as.integer64(132121231360389),
+          game_id = bit64::as.integer64(268008982646879)
+        ),
+        what = "scores",
+        check_progress = FALSE
+      )
+    })
+    targets::tar_make(reporter = "silent", callr_function = NULL)
+    expect_true(
+      all(!startsWith(targets::tar_objects(), "progress_hash"))
+    )
+  })
+})