在 PostgreSQL 中编写创建 ST_Geometry 类型的脚本
使用可调用创建空间类型地理处理工具的 Python 脚本,可将 ST_Geometry 类型、子类型和函数添加到 PostgreSQL 数据库。
创建空间类型工具可执行以下操作:
- 在 PostgreSQL 数据库集群中创建 sde 登录角色
- 授予 sde 用户超级用户权限(创建 ST_Geometry 类型后可撤消这些权限)
- 在安装 ST_Geometry 类型的数据库中创建一个名为 sde 的方案
- 授予 sde 用户对 sde 方案的完全权限
- 授予公共登录组对 sde 方案的 USAGE 权限(如果需要,可撤消该权限,但必须为需要访问 ST_Geometry 类型、子类型或函数的所有用户授予对 sde 方案的 USAGE 权限)
- 在 sde 方案中创建必需的函数、属性域、表(sde_coordinate_systems 和 sde_geometry_columns)和视图(st_geometry_columns 和 st_spatial_references),并在公共方案中创建 sde_spatial_references 表
在运行脚本之前,您必须将 st_geometry 库复制到 PostgreSQL 服务器。
下列步骤介绍如何使用 Python 脚本在 PostgreSQL 数据库中安装 ST_Geometry 类型:
步骤:
- 从位于 ArcGIS 客户端安装位置中的 DatabaseSupport 目录复制 st_geometry 库,并将其放置在 PostgreSQL lib 目录中。
- 如果 PostgreSQL 安装在 Linux 服务器上,则以根用户身份登录服务器,并将 st_geometry.so 文件放在 /usr/lib64/pgsql 目录中。
- 如果 PostgreSQL 安装在 Windows 服务器上,则将 st_geometry.dll 文件放在 %PostgreSQL%\lib 目录中。
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将此示例脚本复制到 ArcGIS for Desktop 中的 Python 窗口或任何 Python IDE(如 PythonWin 或 WING)。根据需要更改任意变量值,以与您的站点信息相匹配。
""" Name: create_spatial_type.py Description: Provide connection information to an enterprise database and create spatial type in the database. Type create_spatial_type.py -h or create_spatial_type.py --help for usage Author: Esri """ # Import system modules import arcpy, os, optparse, sys # Define usage and version parser = optparse.OptionParser(usage = "usage: %prog [Options]", version="%prog 1.0 for 10.1 release") #Define help and options parser.add_option ("--DBMS", dest="Database_type", type="choice", choices=['ORACLE', 'POSTGRESQL', ''], default="", help="Type of enterprise DBMS: ORACLE, or POSTGRESQL.") parser.add_option ("-i", dest="Instance", type="string", default="", help="DBMS instance name") parser.add_option ("--auth", dest="account_authentication", type ="choice", choices=['DATABASE_AUTH', 'OPERATING_SYSTEM_AUTH'], default='DATABASE_AUTH', help="Authentication type options (case-sensitive): DATABASE_AUTH, OPERATING_SYSTEM_AUTH. Default=DATABASE_AUTH") parser.add_option ("-U", dest="Dbms_admin", type="string", default="", help="DBMS administrator user") parser.add_option ("-P", dest="Dbms_admin_pwd", type="string", default="", help="DBMS administrator password") parser.add_option ("-D", dest="Database", type="string", default="none", help="Database name: Not required for Oracle") parser.add_option ("-p", dest="Password", type="string", default="", help="SDE user password") parser.add_option ("-t", dest="tablespace", type="string", default="", help="Default tablespace for SDE user") parser.add_option ("--path", dest="libpath", type="string", default="", help="path to the ST shape library including library file name.") # Check if value entered for option try: (options, args) = parser.parse_args() #Check if no system arguments (options) entered if len(sys.argv) == 1: print "%s: error: %s\n" % (sys.argv[0], "No command options given") parser.print_help() sys.exit(3) #Usage parameters for spatial database connection database_type = options.Database_type.upper() instance = options.Instance account_authentication = options.account_authentication.upper() password = options.Password tablespace = options.tablespace database = options.Database.lower() dbms_admin = options.Dbms_admin dbms_admin_pwd = options.Dbms_admin_pwd lib_path = options.libpath if( database_type ==""): print " \n%s: error: \n%s\n" % (sys.argv[0], "DBMS type (--DBMS) must be specified.") parser.print_help() sys.exit(3) # Local variables instance_temp = instance.replace("\\","_") instance_temp = instance_temp.replace("/","_") instance_temp = instance_temp.replace(":","_") Conn_File_NameT = instance_temp + "_" + database if os.environ.get("TEMP") == None: temp = "c:\\temp" else: temp = os.environ.get("TEMP") if os.environ.get("TMP") == None: temp = "/usr/tmp" else: temp = os.environ.get("TMP") Connection_File_Name = Conn_File_NameT + ".sde" Connection_File_Name_full_path = temp + os.sep + Conn_File_NameT + ".sde" # Check for the .sde file and delete it if present arcpy.env.overwriteOutput=True if os.path.exists(Connection_File_Name_full_path): os.remove(Connection_File_Name_full_path) print "\nCreating Database Connection File...\n" # Process: Create Database Connection File... # Usage: out_file_location, out_file_name, DBMS_TYPE, instnace, database, account_authentication, username, password, save_username_password(must be true) arcpy.CreateDatabaseConnection_management(out_folder_path=temp, out_name=Connection_File_Name, database_platform=database_type, instance=instance, database=database, account_authentication=account_authentication, username=dbms_admin, password=dbms_admin_pwd, save_user_pass="TRUE") for i in range(arcpy.GetMessageCount()): if "000565" in arcpy.GetMessage(i): #Check if database connection was successful arcpy.AddReturnMessage(i) arcpy.AddMessage("\n+++++++++") arcpy.AddMessage("Exiting!!") arcpy.AddMessage("+++++++++\n") sys.exit(3) else: arcpy.AddReturnMessage(i) arcpy.AddMessage("+++++++++\n") # Process: Create spatial type... try: print "Create spatial type...\n" arcpy.CreateSpatialType_management(input_workspace=Connection_File_Name_full_path, sde_user_password=password, tablespace_name=tablespace, st_shape_library_path=lib_path) print "after spatial type...\n" for i in range(arcpy.GetMessageCount()): arcpy.AddReturnMessage(i) arcpy.AddMessage("+++++++++\n") except: for i in range(arcpy.GetMessageCount()): arcpy.AddReturnMessage(i) if os.path.exists(Connection_File_Name_full_path): os.remove(Connection_File_Name_full_path) #Check if no value entered for option except SystemExit as e: if e.code == 2: parser.usage = "" print "\n" parser.print_help() parser.exit(2)
- 运行更改的脚本在 PostgreSQL 数据库中创建 ST_Geometry 类型、子类型和函数。
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9/15/2013